fix(flags): correctly emit feature flag events with the FF response on get_feature_flag_payload calls (#143 )

* this is the fix, needs tests * fix test * tests * yeah * please work * ran the formatter * code review feedback * how'd this get here * bump version add changelog * Update CHANGELOG.md Co-authored-by: David Newell <d.newell1@outlook.com> --------- Co-authored-by: David Newell <d.newell1@outlook.com>
fix(err): fix distinct_id, set personless and use a uuid (#144 )
2024-11-25 14:51:06 -05:00 · 2024-11-25 12:09:57 +00:00 · 2024-11-19 12:46:52 +00:00 · 2024-10-24 16:18:02 +01:00 · 2024-10-03 17:07:47 +01:00 · 2024-09-24 11:09:15 +01:00
31 changed files with 8067 additions and 282 deletions
@@ -33,6 +33,10 @@ jobs:
            - name: Check formatting with black
              run: |
                  black --check .
+            
+            - name: Lint with flake8
+              run: |
+                  flake8 posthog --ignore E501

            - name: Check import order with isort
              run: |
@@ -58,4 +62,4 @@ jobs:

            - name: Run posthog tests
              run: |
-                  python setup.py test
+                  pytest --verbose --timeout=30
@@ -1,10 +1,220 @@
+## 3.7.4 - 2024-11-25
+
+1. Fix bug where this SDK incorrectly sent feature flag events with null values when calling `get_feature_flag_payload`.
+
+## 3.7.3 - 2024-11-25
+
+1. Use personless mode when sending an exception without a provided `distinct_id`.
+
+## 3.7.2 - 2024-11-19
+
+1. Add `type` property to exception stacks.
+
+## 3.7.1 - 2024-10-24
+
+1. Add `platform` property to each frame of exception stacks.
+
+## 3.7.0 - 2024-10-03
+
+1. Adds a new `super_properties` parameter on the client that are appended to every /capture call.
+
+## 3.6.7 - 2024-09-24
+
+1. Remove deprecated datetime.utcnow() in favour of datetime.now(tz=tzutc())
+
+## 3.6.6 - 2024-09-16
+
+1. Fix manual capture support for in app frames
+
+## 3.6.5 - 2024-09-10
+
+1. Fix django integration support for manual exception capture.
+
+## 3.6.4 - 2024-09-05
+
+1. Add manual exception capture.
+
+## 3.6.3 - 2024-09-03
+
+1. Make sure setup.py for posthoganalytics package also discovers the new exception integration package.
+
+## 3.6.2 - 2024-09-03
+
+1. Make sure setup.py discovers the new exception integration package.
+
+## 3.6.1 - 2024-09-03
+
+1. Adds django integration to exception autocapture in alpha state. This feature is not yet stable and may change in future versions.
+
+## 3.6.0 - 2024-08-28
+
+1. Adds exception autocapture in alpha state. This feature is not yet stable and may change in future versions.
+
+## 3.5.2 - 2024-08-21
+
+1. Guard for None values in local evaluation
+
+## 3.5.1 - 2024-08-13
+
+1. Remove "-api" suffix from ingestion hostnames
+
+## 3.5.0 - 2024-02-29
+
+1. - Adds a new `feature_flags_request_timeout_seconds` timeout parameter for feature flags which defaults to 3 seconds, updated from the default 10s for all other API calls.
+
+## 3.4.2 - 2024-02-20
+
+1. Add `historical_migration` option for bulk migration to PostHog Cloud.
+
+## 3.4.1 - 2024-02-09
+
+1. Use new hosts for event capture as well
+
+## 3.4.0 - 2024-02-05
+
+1. Point given hosts to new ingestion hosts
+
+## 3.3.4 - 2024-01-30
+
+1. Update type hints for module variables to work with newer versions of mypy
+
+## 3.3.3 - 2024-01-26
+
+1. Remove new relative date operators, combine into regular date operators
+
+## 3.3.2 - 2024-01-19
+
+1. Return success/failure with all capture calls from module functions
+
+## 3.3.1 - 2024-01-10
+
+1. Make sure we don't override any existing feature flag properties when adding locally evaluated feature flag properties.
+
+## 3.3.0 - 2024-01-09
+
+1. When local evaluation is enabled, we automatically add flag information to all events sent to PostHog, whenever possible. This makes it easier to use these events in experiments.
+
+## 3.2.0 - 2024-01-09
+
+1. Numeric property handling for feature flags now does the expected: When passed in a number, we do a numeric comparison. When passed in a string, we do a string comparison. Previously, we always did a string comparison.
+2. Add support for relative date operators for local evaluation.
+
+## 3.1.0 - 2023-12-04
+
+1. Increase maximum event size and batch size
+
+## 3.0.2 - 2023-08-17
+
+1. Returns the current flag property with $feature_flag_called events, to make it easier to use in experiments
+
+## 3.0.1 - 2023-04-21
+
+1. Restore how feature flags work when the client library is disabled: All requests return `None` and no events are sent when the client is disabled.
+2. Add a `feature_flag_definitions()` debug option, which returns currently loaded feature flag definitions. You can use this to more cleverly decide when to request local evaluation of feature flags.
+
+## 3.0.0 - 2023-04-14
+
+Breaking change:
+
+All events by default now send the `$geoip_disable` property to disable geoip lookup in app. This is because usually we don't
+want to update person properties to take the server's location.
+
+The same now happens for feature flag requests, where we discard the IP address of the server for matching on geoip properties like city, country, continent.
+
+To restore previous behaviour, you can set the default to False like so:
+
+```python
+posthog.disable_geoip = False
+
+# // and if using client instantiation:
+posthog = Posthog('api_key', disable_geoip=False)
+
+```
+
+## 2.5.0 - 2023-04-10
+
+1. Add option for instantiating separate client object
+
+## 2.4.2 - 2023-03-30
+
+1. Update backoff dependency for posthoganalytics package to be the same as posthog package
+
+## 2.4.1 - 2023-03-17
+
+1. Removes accidental print call left in for decide response
+
+## 2.4.0 - 2023-03-14
+
+1. Support evaluating all cohorts in feature flags for local evaluation
+
+## 2.3.1 - 2023-02-07
+
+1. Log instead of raise error on posthog personal api key errors
+2. Remove upper bound on backoff dependency
+
+## 2.3.0 - 2023-01-31
+
+1. Add support for returning payloads of matched feature flags
+
+## 2.2.0 - 2022-11-14
+
+Changes:
+
+1. Add support for feature flag variant overrides with local evaluation
+
+## 2.1.2 - 2022-09-15
+
+Changes:
+
+1. Fixes issues with date comparison.
+
+## 2.1.1 - 2022-09-14
+
+Changes:
+
+1. Feature flags local evaluation now supports date property filters as well. Accepts both strings and datetime objects.
+
+## 2.1.0 - 2022-08-11
+
+Changes:
+
+1. Feature flag defaults have been removed
+2. Setup logging only when debug mode is enabled.
+
+## 2.0.1 - 2022-08-04
+
+- Make poll_interval configurable
+- Add `send_feature_flag_events` parameter to feature flag calls, which determine whether the `$feature_flag_called` event should be sent or not.
+- Add `only_evaluate_locally` parameter to feature flag calls, which determines whether the feature flag should only be evaluated locally or not.
+
+## 2.0.0 - 2022-08-02
+
+Breaking changes:
+
+1. The minimum version requirement for PostHog servers is now 1.38. If you're using PostHog Cloud, you satisfy this requirement automatically.
+2. Feature flag defaults apply only when there's an error fetching feature flag results. Earlier, if the default was set to `True`, even if a flag resolved to `False`, the default would override this.
+   **Note: These are removed in 2.0.2**
+3. Feature flag remote evaluation doesn't require a personal API key.
+
+New Changes:
+
+1. You can now evaluate feature flags locally (i.e. without sending a request to your PostHog servers) by setting a personal API key, and passing in groups and person properties to `is_feature_enabled` and `get_feature_flag` calls.
+2. Introduces a `get_all_flags` method that returns all feature flags. This is useful for when you want to seed your frontend with some initial flags, given a user ID.
+
+## 1.4.9 - 2022-06-13
+
+- Support for sending feature flags with capture calls
+
 ## 1.4.8 - 2022-05-12
+
 - Support multi variate feature flags

 ## 1.4.7 - 2022-04-25
+
 - Allow feature flags usage without project_api_key

 ## 1.4.1 - 2021-05-28
+
 - Fix packaging issues with Sentry integrations

 ## 1.4.0 - 2021-05-18
@@ -0,0 +1 @@
+@PostHog/team-feature-success
@@ -1,4 +1,4 @@
-Copyright (c) 2020 PostHog (part of Hiberly Inc)
+Copyright (c) 2023 PostHog (part of Hiberly Inc)

 Copyright (c) 2013 Segment Inc. friends@segment.com

@@ -39,7 +39,7 @@ Then navigate to `http://127.0.0.1:8080/sentry-debug/` and you should get an eve

 ### Releasing Versions

-Updated are released using GitHub Actions: after bumping `version.py` in `master`, go to [our release workflow's page](https://github.com/PostHog/posthog-python/actions/workflows/release.yaml) and dispatch it manually, using workflow from `master`.
+Updated are released using GitHub Actions: after bumping `version.py` in `master` and adding to `CHANGELOG.md`, go to [our release workflow's page](https://github.com/PostHog/posthog-python/actions/workflows/release.yaml) and dispatch it manually, using workflow from `master`.

 ## Questions?

@@ -5,25 +5,45 @@ import time

 import posthog

+posthog.debug = True
+
 # You can find this key on the /setup page in PostHog
-posthog.project_api_key = ""
-posthog.personal_api_key = ""
+posthog.project_api_key = "phc_gtWmTq3Pgl06u4sZY3TRcoQfp42yfuXHKoe8ZVSR6Kh"
+posthog.personal_api_key = "phx_fiRCOQkTA3o2ePSdLrFDAILLHjMu2Mv52vUi8MNruIm"

 # Where you host PostHog, with no trailing /.
 # You can remove this line if you're using posthog.com
-posthog.host = "http://127.0.0.1:8000"
+posthog.host = "http://localhost:8000"
+posthog.poll_interval = 10
+
+print(
+    posthog.feature_enabled(
+        "person-on-events-enabled",
+        "12345",
+        groups={"organization": str("0182ee91-8ef7-0000-4cb9-fedc5f00926a")},
+        group_properties={
+            "organization": {
+                "id": "0182ee91-8ef7-0000-4cb9-fedc5f00926a",
+                "created_at": "2022-06-30 11:44:52.984121+00:00",
+            }
+        },
+        only_evaluate_locally=True,
+    )
+)
+

 # Capture an event
-posthog.capture("distinct_id", "event", {"property1": "value", "property2": "value"})
+posthog.capture("distinct_id", "event", {"property1": "value", "property2": "value"}, send_feature_flags=True)

 print(posthog.feature_enabled("beta-feature", "distinct_id"))
-print(posthog.feature_enabled("beta-feature", "distinct_id", groups={"company": "id:5"}))
-
-print("sleeping")
-time.sleep(5)
+print(posthog.feature_enabled("beta-feature-groups", "distinct_id", groups={"company": "id:5"}))

 print(posthog.feature_enabled("beta-feature", "distinct_id"))

+# get payload
+print(posthog.get_feature_flag_payload("beta-feature", "distinct_id"))
+print(posthog.get_all_flags_and_payloads("distinct_id"))
+exit()
 # # Alias a previous distinct id with a new one

 posthog.alias("distinct_id", "new_distinct_id")
@@ -42,7 +62,6 @@ posthog.group_identify("company", "id:5", {"employees": 11})
 # properties set only once to the person
 posthog.set_once("new_distinct_id", {"self_serve_signup": True})

-time.sleep(3)

 posthog.set_once(
    "new_distinct_id", {"self_serve_signup": False}
@@ -51,4 +70,32 @@ posthog.set_once(
 posthog.set("new_distinct_id", {"current_browser": "Chrome"})
 posthog.set("new_distinct_id", {"current_browser": "Firefox"})

-# posthog.shutdown()
+
+# #############################################################################
+# Make sure you have a personal API key for the examples below
+
+# Local Evaluation
+
+# If flag has City=Sydney, this call doesn't go to `/decide`
+print(posthog.feature_enabled("test-flag", "distinct_id_random_22", person_properties={"$geoip_city_name": "Sydney"}))
+
+print(
+    posthog.feature_enabled(
+        "test-flag",
+        "distinct_id_random_22",
+        person_properties={"$geoip_city_name": "Sydney"},
+        only_evaluate_locally=True,
+    )
+)
+
+
+print(posthog.get_all_flags("distinct_id_random_22"))
+print(posthog.get_all_flags("distinct_id_random_22", only_evaluate_locally=True))
+print(
+    posthog.get_all_flags(
+        "distinct_id_random_22", person_properties={"$geoip_city_name": "Sydney"}, only_evaluate_locally=True
+    )
+)
+
+
+posthog.shutdown()
@@ -1,22 +1,33 @@
-from typing import Callable, Dict, Optional
+import datetime  # noqa: F401
+from typing import Callable, Dict, List, Optional, Tuple  # noqa: F401

 from posthog.client import Client
+from posthog.exception_capture import Integrations  # noqa: F401
 from posthog.version import VERSION

 __version__ = VERSION

 """Settings."""
-api_key = None  # type: str
-host = None  # type: str
-on_error = None  # type: Callable
+api_key = None  # type: Optional[str]
+host = None  # type: Optional[str]
+on_error = None  # type: Optional[Callable]
 debug = False  # type: bool
 send = True  # type: bool
 sync_mode = False  # type: bool
 disabled = False  # type: bool
-personal_api_key = None  # type: str
-project_api_key = None  # type: str
+personal_api_key = None  # type: Optional[str]
+project_api_key = None  # type: Optional[str]
+poll_interval = 30  # type: int
+disable_geoip = True  # type: bool
+feature_flags_request_timeout_seconds = 3  # type: int
+super_properties = None  # type: Optional[Dict]
+# Currently alpha, use at your own risk
+enable_exception_autocapture = False  # type: bool
+exception_autocapture_integrations = []  # type: List[Integrations]
+# Used to determine in app paths for exception autocapture. Defaults to the current working directory
+project_root = None  # type: Optional[str]

-default_client = None
+default_client = None  # type: Optional[Client]


 def capture(
@@ -27,8 +38,10 @@ def capture(
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
    groups=None,  # type: Optional[Dict]
+    send_feature_flags=False,
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    Capture allows you to capture anything a user does within your system, which you can later use in PostHog to find patterns in usage, work out which features to improve or where people are giving up.

@@ -49,7 +62,7 @@ def capture(
    posthog.capture('distinct id', 'purchase', groups={'company': 'id:5'})
    ```
    """
-    _proxy(
+    return _proxy(
        "capture",
        distinct_id=distinct_id,
        event=event,
@@ -58,6 +71,8 @@ def capture(
        timestamp=timestamp,
        uuid=uuid,
        groups=groups,
+        send_feature_flags=send_feature_flags,
+        disable_geoip=disable_geoip,
    )


@@ -67,8 +82,9 @@ def identify(
    context=None,  # type: Optional[Dict]
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    Identify lets you add metadata on your users so you can more easily identify who they are in PostHog, and even do things like segment users by these properties.

@@ -84,24 +100,26 @@ def identify(
    })
    ```
    """
-    _proxy(
+    return _proxy(
        "identify",
        distinct_id=distinct_id,
        properties=properties,
        context=context,
        timestamp=timestamp,
        uuid=uuid,
+        disable_geoip=disable_geoip,
    )


 def set(
-    distinct_id,  # type: str,
+    distinct_id,  # type: str
    properties=None,  # type: Optional[Dict]
    context=None,  # type: Optional[Dict]
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    Set properties on a user record.
    This will overwrite previous people property values, just like `identify`.
@@ -117,24 +135,26 @@ def set(
     })
     ```
    """
-    _proxy(
+    return _proxy(
        "set",
        distinct_id=distinct_id,
        properties=properties,
        context=context,
        timestamp=timestamp,
        uuid=uuid,
+        disable_geoip=disable_geoip,
    )


 def set_once(
-    distinct_id,  # type: str,
+    distinct_id,  # type: str
    properties=None,  # type: Optional[Dict]
    context=None,  # type: Optional[Dict]
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    Set properties on a user record, only if they do not yet exist.
    This will not overwrite previous people property values, unlike `identify`.
@@ -150,13 +170,14 @@ def set_once(
     })
     ```
    """
-    _proxy(
+    return _proxy(
        "set_once",
        distinct_id=distinct_id,
        properties=properties,
        context=context,
        timestamp=timestamp,
        uuid=uuid,
+        disable_geoip=disable_geoip,
    )


@@ -167,8 +188,9 @@ def group_identify(
    context=None,  # type: Optional[Dict]
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    Set properties on a group

@@ -184,7 +206,7 @@ def group_identify(
     })
     ```
    """
-    _proxy(
+    return _proxy(
        "group_identify",
        group_type=group_type,
        group_key=group_key,
@@ -192,17 +214,19 @@ def group_identify(
        context=context,
        timestamp=timestamp,
        uuid=uuid,
+        disable_geoip=disable_geoip,
    )


 def alias(
-    previous_id,  # type: str,
-    distinct_id,  # type: str,
+    previous_id,  # type: str
+    distinct_id,  # type: str
    context=None,  # type: Optional[Dict]
    timestamp=None,  # type: Optional[datetime.datetime]
    uuid=None,  # type: Optional[str]
+    disable_geoip=None,  # type: Optional[bool]
 ):
-    # type: (...) -> None
+    # type: (...) -> Tuple[bool, dict]
    """
    To marry up whatever a user does before they sign up or log in with what they do after you need to make an alias call. This will allow you to answer questions like "Which marketing channels leads to users churning after a month?" or "What do users do on our website before signing up?"

@@ -219,21 +243,70 @@ def alias(
    posthog.alias('anonymous session id', 'distinct id')
    ```
    """
-    _proxy(
+    return _proxy(
        "alias",
        previous_id=previous_id,
        distinct_id=distinct_id,
        context=context,
        timestamp=timestamp,
        uuid=uuid,
+        disable_geoip=disable_geoip,
+    )
+
+
+def capture_exception(
+    exception=None,  # type: Optional[BaseException]
+    distinct_id=None,  # type: Optional[str]
+    properties=None,  # type: Optional[Dict]
+    context=None,  # type: Optional[Dict]
+    timestamp=None,  # type: Optional[datetime.datetime]
+    uuid=None,  # type: Optional[str]
+    groups=None,  # type: Optional[Dict]
+):
+    # type: (...) -> Tuple[bool, dict]
+    """
+    capture_exception allows you to capture exceptions that happen in your code. This is useful for debugging and understanding what errors your users are encountering.
+    This function never raises an exception, even if it fails to send the event.
+
+    A `capture_exception` call does not require any fields, but we recommend sending:
+    - `distinct id` which uniquely identifies your user for which this exception happens
+    - `exception` to specify the exception to capture. If not provided, the current exception is captured via `sys.exc_info()`
+
+    Optionally you can submit
+    - `properties`, which can be a dict with any information you'd like to add
+    - `groups`, which is a dict of group type -> group key mappings
+
+    For example:
+    ```python
+    try:
+        1 / 0
+    except Exception as e:
+        posthog.capture_exception(e, 'my specific distinct id')
+        posthog.capture_exception(distinct_id='my specific distinct id')
+
+    ```
+    """
+    return _proxy(
+        "capture_exception",
+        exception=exception,
+        distinct_id=distinct_id,
+        properties=properties,
+        context=context,
+        timestamp=timestamp,
+        uuid=uuid,
+        groups=groups,
    )


 def feature_enabled(
-    key,  # type: str,
-    distinct_id,  # type: str,
-    default=False,  # type: bool
+    key,  # type: str
+    distinct_id,  # type: str
    groups={},  # type: dict
+    person_properties={},  # type: dict
+    group_properties={},  # type: dict
+    only_evaluate_locally=False,  # type: bool
+    send_feature_flag_events=True,  # type: bool
+    disable_geoip=None,  # type: Optional[bool]
 ):
    # type: (...) -> bool
    """
@@ -249,7 +322,144 @@ def feature_enabled(

    You can call `posthog.load_feature_flags()` before to make sure you're not doing unexpected requests.
    """
-    return _proxy("feature_enabled", key=key, distinct_id=distinct_id, default=default, groups=groups)
+    return _proxy(
+        "feature_enabled",
+        key=key,
+        distinct_id=distinct_id,
+        groups=groups,
+        person_properties=person_properties,
+        group_properties=group_properties,
+        only_evaluate_locally=only_evaluate_locally,
+        send_feature_flag_events=send_feature_flag_events,
+        disable_geoip=disable_geoip,
+    )
+
+
+def get_feature_flag(
+    key,  # type: str
+    distinct_id,  # type: str
+    groups={},  # type: dict
+    person_properties={},  # type: dict
+    group_properties={},  # type: dict
+    only_evaluate_locally=False,  # type: bool
+    send_feature_flag_events=True,  # type: bool
+    disable_geoip=None,  # type: Optional[bool]
+):
+    """
+    Get feature flag variant for users. Used with experiments.
+    Example:
+    ```python
+    if posthog.get_feature_flag('beta-feature', 'distinct_id') == 'test-variant':
+        # do test variant code
+    if posthog.get_feature_flag('beta-feature', 'distinct_id') == 'control':
+        # do control code
+    ```
+
+    `groups` are a mapping from group type to group key. So, if you have a group type of "organization" and a group key of "5",
+    you would pass groups={"organization": "5"}.
+
+    `group_properties` take the format: { group_type_name: { group_properties } }
+
+    So, for example, if you have the group type "organization" and the group key "5", with the properties name, and employee count,
+    you'll send these as:
+
+    ```python
+        group_properties={"organization": {"name": "PostHog", "employees": 11}}
+    ```
+    """
+    return _proxy(
+        "get_feature_flag",
+        key=key,
+        distinct_id=distinct_id,
+        groups=groups,
+        person_properties=person_properties,
+        group_properties=group_properties,
+        only_evaluate_locally=only_evaluate_locally,
+        send_feature_flag_events=send_feature_flag_events,
+        disable_geoip=disable_geoip,
+    )
+
+
+def get_all_flags(
+    distinct_id,  # type: str
+    groups={},  # type: dict
+    person_properties={},  # type: dict
+    group_properties={},  # type: dict
+    only_evaluate_locally=False,  # type: bool
+    disable_geoip=None,  # type: Optional[bool]
+):
+    """
+    Get all flags for a given user.
+    Example:
+    ```python
+    flags = posthog.get_all_flags('distinct_id')
+    ```
+
+    flags are key-value pairs where the key is the flag key and the value is the flag variant, or True, or False.
+    """
+    return _proxy(
+        "get_all_flags",
+        distinct_id=distinct_id,
+        groups=groups,
+        person_properties=person_properties,
+        group_properties=group_properties,
+        only_evaluate_locally=only_evaluate_locally,
+        disable_geoip=disable_geoip,
+    )
+
+
+def get_feature_flag_payload(
+    key,
+    distinct_id,
+    match_value=None,
+    groups={},
+    person_properties={},
+    group_properties={},
+    only_evaluate_locally=False,
+    send_feature_flag_events=True,
+    disable_geoip=None,  # type: Optional[bool]
+):
+    return _proxy(
+        "get_feature_flag_payload",
+        key=key,
+        distinct_id=distinct_id,
+        match_value=match_value,
+        groups=groups,
+        person_properties=person_properties,
+        group_properties=group_properties,
+        only_evaluate_locally=only_evaluate_locally,
+        send_feature_flag_events=send_feature_flag_events,
+        disable_geoip=disable_geoip,
+    )
+
+
+def get_all_flags_and_payloads(
+    distinct_id,
+    groups={},
+    person_properties={},
+    group_properties={},
+    only_evaluate_locally=False,
+    disable_geoip=None,  # type: Optional[bool]
+):
+    return _proxy(
+        "get_all_flags_and_payloads",
+        distinct_id=distinct_id,
+        groups=groups,
+        person_properties=person_properties,
+        group_properties=group_properties,
+        only_evaluate_locally=only_evaluate_locally,
+        disable_geoip=disable_geoip,
+    )
+
+
+def feature_flag_definitions():
+    """Returns loaded feature flags, if any. Helpful for debugging what flag information you have loaded."""
+    return _proxy("feature_flag_definitions")
+
+
+def load_feature_flags():
+    """Load feature flag definitions from PostHog."""
+    return _proxy("load_feature_flags")


 def page(*args, **kwargs):
@@ -281,8 +491,6 @@ def shutdown():
 def _proxy(method, *args, **kwargs):
    """Create an analytics client if one doesn't exist and send to it."""
    global default_client
-    if disabled:
-        return None
    if not default_client:
        default_client = Client(
            api_key,
@@ -293,7 +501,25 @@ def _proxy(method, *args, **kwargs):
            sync_mode=sync_mode,
            personal_api_key=personal_api_key,
            project_api_key=project_api_key,
+            poll_interval=poll_interval,
+            disabled=disabled,
+            disable_geoip=disable_geoip,
+            feature_flags_request_timeout_seconds=feature_flags_request_timeout_seconds,
+            super_properties=super_properties,
+            # TODO: Currently this monitoring begins only when the Client is initialised (which happens when you do something with the SDK)
+            # This kind of initialisation is very annoying for exception capture. We need to figure out a way around this,
+            # or deprecate this proxy option fully (it's already in the process of deprecation, no new clients should be using this method since like 5-6 months)
+            enable_exception_autocapture=enable_exception_autocapture,
+            exception_autocapture_integrations=exception_autocapture_integrations,
        )

+    # always set incase user changes it
+    default_client.disabled = disabled
+    default_client.debug = debug
+
    fn = getattr(default_client, method)
    return fn(*args, **kwargs)
+
+
+class Posthog(Client):
+    pass
@@ -1,7 +1,8 @@
 import atexit
-import hashlib
 import logging
 import numbers
+import os
+import sys
 from datetime import datetime, timedelta
 from uuid import UUID, uuid4

@@ -9,9 +10,12 @@ from dateutil.tz import tzutc
 from six import string_types

 from posthog.consumer import Consumer
+from posthog.exception_capture import ExceptionCapture
+from posthog.exception_utils import exc_info_from_error, exceptions_from_error_tuple, handle_in_app
+from posthog.feature_flags import InconclusiveMatchError, match_feature_flag_properties
 from posthog.poller import Poller
-from posthog.request import APIError, batch_post, decide, get
-from posthog.utils import clean, guess_timezone
+from posthog.request import DEFAULT_HOST, APIError, batch_post, decide, determine_server_host, get
+from posthog.utils import SizeLimitedDict, clean, guess_timezone, remove_trailing_slash
 from posthog.version import VERSION

 try:
@@ -21,7 +25,7 @@ except ImportError:


 ID_TYPES = (numbers.Number, string_types, UUID)
-__LONG_SCALE__ = float(0xFFFFFFFFFFFFFFF)
+MAX_DICT_SIZE = 50_000


 class Client(object):
@@ -47,8 +51,15 @@ class Client(object):
        poll_interval=30,
        personal_api_key=None,
        project_api_key=None,
+        disabled=False,
+        disable_geoip=True,
+        historical_migration=False,
+        feature_flags_request_timeout_seconds=3,
+        super_properties=None,
+        enable_exception_autocapture=False,
+        exception_autocapture_integrations=None,
+        project_root=None,
    ):
-
        self.queue = queue.Queue(max_queue_size)

        # api_key: This should be the Team API Key (token), public
@@ -60,18 +71,47 @@ class Client(object):
        self.debug = debug
        self.send = send
        self.sync_mode = sync_mode
-        self.host = host
+        # Used for session replay URL generation - we don't want the server host here.
+        self.raw_host = host or DEFAULT_HOST
+        self.host = determine_server_host(host)
        self.gzip = gzip
        self.timeout = timeout
        self.feature_flags = None
+        self.feature_flags_by_key = None
+        self.group_type_mapping = None
+        self.cohorts = None
        self.poll_interval = poll_interval
+        self.feature_flags_request_timeout_seconds = feature_flags_request_timeout_seconds
        self.poller = None
+        self.distinct_ids_feature_flags_reported = SizeLimitedDict(MAX_DICT_SIZE, set)
+        self.disabled = disabled
+        self.disable_geoip = disable_geoip
+        self.historical_migration = historical_migration
+        self.super_properties = super_properties
+        self.enable_exception_autocapture = enable_exception_autocapture
+        self.exception_autocapture_integrations = exception_autocapture_integrations
+        self.exception_capture = None
+
+        if project_root is None:
+            try:
+                project_root = os.getcwd()
+            except Exception:
+                project_root = None
+
+        self.project_root = project_root

        # personal_api_key: This should be a generated Personal API Key, private
        self.personal_api_key = personal_api_key
-
        if debug:
+            # Ensures that debug level messages are logged when debug mode is on.
+            # Otherwise, defaults to WARNING level. See https://docs.python.org/3/howto/logging.html#what-happens-if-no-configuration-is-provided
+            logging.basicConfig()
            self.log.setLevel(logging.DEBUG)
+        else:
+            self.log.setLevel(logging.WARNING)
+
+        if self.enable_exception_autocapture:
+            self.exception_capture = ExceptionCapture(self, integrations=self.exception_autocapture_integrations)

        if sync_mode:
            self.consumers = None
@@ -89,13 +129,14 @@ class Client(object):
                consumer = Consumer(
                    self.queue,
                    self.api_key,
-                    host=host,
+                    host=self.host,
                    on_error=on_error,
                    flush_at=flush_at,
                    flush_interval=flush_interval,
                    gzip=gzip,
                    retries=max_retries,
                    timeout=timeout,
+                    historical_migration=historical_migration,
                )
                self.consumers.append(consumer)

@@ -103,7 +144,7 @@ class Client(object):
                if send:
                    consumer.start()

-    def identify(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None):
+    def identify(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None, disable_geoip=None):
        properties = properties or {}
        context = context or {}
        require("distinct_id", distinct_id, ID_TYPES)
@@ -118,10 +159,62 @@ class Client(object):
            "uuid": uuid,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)
+
+    def get_feature_variants(
+        self, distinct_id, groups=None, person_properties=None, group_properties=None, disable_geoip=None
+    ):
+        resp_data = self.get_decide(distinct_id, groups, person_properties, group_properties, disable_geoip)
+        return resp_data["featureFlags"]
+
+    def get_feature_payloads(
+        self, distinct_id, groups=None, person_properties=None, group_properties=None, disable_geoip=None
+    ):
+        resp_data = self.get_decide(distinct_id, groups, person_properties, group_properties, disable_geoip)
+        return resp_data["featureFlagPayloads"]
+
+    def get_feature_flags_and_payloads(
+        self, distinct_id, groups=None, person_properties=None, group_properties=None, disable_geoip=None
+    ):
+        resp_data = self.get_decide(distinct_id, groups, person_properties, group_properties, disable_geoip)
+        return {
+            "featureFlags": resp_data["featureFlags"],
+            "featureFlagPayloads": resp_data["featureFlagPayloads"],
+        }
+
+    def get_decide(self, distinct_id, groups=None, person_properties=None, group_properties=None, disable_geoip=None):
+        require("distinct_id", distinct_id, ID_TYPES)
+
+        if disable_geoip is None:
+            disable_geoip = self.disable_geoip
+
+        if groups:
+            require("groups", groups, dict)
+        else:
+            groups = {}
+
+        request_data = {
+            "distinct_id": distinct_id,
+            "groups": groups,
+            "person_properties": person_properties,
+            "group_properties": group_properties,
+            "disable_geoip": disable_geoip,
+        }
+        resp_data = decide(self.api_key, self.host, timeout=self.feature_flags_request_timeout_seconds, **request_data)
+
+        return resp_data

    def capture(
-        self, distinct_id=None, event=None, properties=None, context=None, timestamp=None, uuid=None, groups=None
+        self,
+        distinct_id=None,
+        event=None,
+        properties=None,
+        context=None,
+        timestamp=None,
+        uuid=None,
+        groups=None,
+        send_feature_flags=False,
+        disable_geoip=None,
    ):
        properties = properties or {}
        context = context or {}
@@ -142,9 +235,33 @@ class Client(object):
            require("groups", groups, dict)
            msg["properties"]["$groups"] = groups

-        return self._enqueue(msg)
+        extra_properties = {}
+        feature_variants = {}
+        if send_feature_flags:
+            try:
+                feature_variants = self.get_feature_variants(distinct_id, groups, disable_geoip=disable_geoip)
+            except Exception as e:
+                self.log.exception(f"[FEATURE FLAGS] Unable to get feature variants: {e}")

-    def set(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None):
+        elif self.feature_flags:
+            # Local evaluation is enabled, flags are loaded, so try and get all flags we can without going to the server
+            feature_variants = self.get_all_flags(
+                distinct_id, groups=(groups or {}), disable_geoip=disable_geoip, only_evaluate_locally=True
+            )
+
+        for feature, variant in feature_variants.items():
+            extra_properties[f"$feature/{feature}"] = variant
+
+        active_feature_flags = [key for (key, value) in feature_variants.items() if value is not False]
+        if active_feature_flags:
+            extra_properties["$active_feature_flags"] = active_feature_flags
+
+        if extra_properties:
+            msg["properties"] = {**extra_properties, **msg["properties"]}
+
+        return self._enqueue(msg, disable_geoip)
+
+    def set(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None, disable_geoip=None):
        properties = properties or {}
        context = context or {}
        require("distinct_id", distinct_id, ID_TYPES)
@@ -159,9 +276,9 @@ class Client(object):
            "uuid": uuid,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)

-    def set_once(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None):
+    def set_once(self, distinct_id=None, properties=None, context=None, timestamp=None, uuid=None, disable_geoip=None):
        properties = properties or {}
        context = context or {}
        require("distinct_id", distinct_id, ID_TYPES)
@@ -176,9 +293,18 @@ class Client(object):
            "uuid": uuid,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)

-    def group_identify(self, group_type=None, group_key=None, properties=None, context=None, timestamp=None, uuid=None):
+    def group_identify(
+        self,
+        group_type=None,
+        group_key=None,
+        properties=None,
+        context=None,
+        timestamp=None,
+        uuid=None,
+        disable_geoip=None,
+    ):
        properties = properties or {}
        context = context or {}
        require("group_type", group_type, ID_TYPES)
@@ -198,9 +324,9 @@ class Client(object):
            "uuid": uuid,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)

-    def alias(self, previous_id=None, distinct_id=None, context=None, timestamp=None, uuid=None):
+    def alias(self, previous_id=None, distinct_id=None, context=None, timestamp=None, uuid=None, disable_geoip=None):
        context = context or {}

        require("previous_id", previous_id, ID_TYPES)
@@ -217,9 +343,11 @@ class Client(object):
            "distinct_id": previous_id,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)

-    def page(self, distinct_id=None, url=None, properties=None, context=None, timestamp=None, uuid=None):
+    def page(
+        self, distinct_id=None, url=None, properties=None, context=None, timestamp=None, uuid=None, disable_geoip=None
+    ):
        properties = properties or {}
        context = context or {}

@@ -238,13 +366,76 @@ class Client(object):
            "uuid": uuid,
        }

-        return self._enqueue(msg)
+        return self._enqueue(msg, disable_geoip)

-    def _enqueue(self, msg):
+    def capture_exception(
+        self,
+        exception=None,
+        distinct_id=None,
+        properties=None,
+        context=None,
+        timestamp=None,
+        uuid=None,
+        groups=None,
+    ):
+        # this function shouldn't ever throw an error, so it logs exceptions instead of raising them.
+        # this is important to ensure we don't unexpectedly re-raise exceptions in the user's code.
+        try:
+            properties = properties or {}
+
+            # if there's no distinct_id, we'll generate one and set personless mode
+            # via $process_person_profile = false
+            if distinct_id is None:
+                properties["$process_person_profile"] = False
+                distinct_id = uuid4()
+
+            require("distinct_id", distinct_id, ID_TYPES)
+            require("properties", properties, dict)
+
+            if exception is not None:
+                exc_info = exc_info_from_error(exception)
+            else:
+                exc_info = sys.exc_info()
+
+            if exc_info is None or exc_info == (None, None, None):
+                self.log.warning("No exception information available")
+                return
+
+            # Format stack trace for cymbal
+            all_exceptions_with_trace = exceptions_from_error_tuple(exc_info)
+
+            # Add in-app property to frames in the exceptions
+            event = handle_in_app(
+                {
+                    "exception": {
+                        "values": all_exceptions_with_trace,
+                    },
+                },
+                project_root=self.project_root,
+            )
+            all_exceptions_with_trace_and_in_app = event["exception"]["values"]
+
+            properties = {
+                "$exception_type": all_exceptions_with_trace_and_in_app[0].get("type"),
+                "$exception_message": all_exceptions_with_trace_and_in_app[0].get("value"),
+                "$exception_list": all_exceptions_with_trace_and_in_app,
+                "$exception_personURL": f"{remove_trailing_slash(self.raw_host)}/project/{self.api_key}/person/{distinct_id}",
+                **properties,
+            }
+
+            return self.capture(distinct_id, "$exception", properties, context, timestamp, uuid, groups)
+        except Exception as e:
+            self.log.exception(f"Failed to capture exception: {e}")
+
+    def _enqueue(self, msg, disable_geoip):
        """Push a new `msg` onto the queue, return `(success, msg)`"""
+
+        if self.disabled:
+            return False, "disabled"
+
        timestamp = msg["timestamp"]
        if timestamp is None:
-            timestamp = datetime.utcnow().replace(tzinfo=tzutc())
+            timestamp = datetime.now(tz=tzutc())

        require("timestamp", timestamp, datetime)
        require("context", msg["context"], dict)
@@ -264,6 +455,15 @@ class Client(object):
        msg["properties"]["$lib"] = "posthog-python"
        msg["properties"]["$lib_version"] = VERSION

+        if disable_geoip is None:
+            disable_geoip = self.disable_geoip
+
+        if disable_geoip:
+            msg["properties"]["$geoip_disable"] = True
+
+        if self.super_properties:
+            msg["properties"] = {**msg["properties"], **self.super_properties}
+
        msg["distinct_id"] = stringify_id(msg.get("distinct_id", None))

        msg = clean(msg)
@@ -275,7 +475,14 @@ class Client(object):

        if self.sync_mode:
            self.log.debug("enqueued with blocking %s.", msg["event"])
-            batch_post(self.api_key, self.host, gzip=self.gzip, timeout=self.timeout, batch=[msg])
+            batch_post(
+                self.api_key,
+                self.host,
+                gzip=self.gzip,
+                timeout=self.timeout,
+                batch=[msg],
+                historical_migration=self.historical_migration,
+            )

            return True, msg

@@ -315,20 +522,39 @@ class Client(object):
        self.flush()
        self.join()

+        if self.exception_capture:
+            self.exception_capture.close()
+
    def _load_feature_flags(self):
        try:
-            flags = get(self.personal_api_key, f"/api/feature_flag/?token={self.api_key}", self.host)["results"]
-            self.feature_flags = [flag for flag in flags if flag["active"]]
+            response = get(
+                self.personal_api_key,
+                f"/api/feature_flag/local_evaluation/?token={self.api_key}&send_cohorts",
+                self.host,
+                timeout=10,
+            )
+
+            self.feature_flags = response["flags"] or []
+            self.feature_flags_by_key = {
+                flag["key"]: flag for flag in self.feature_flags if flag.get("key") is not None
+            }
+            self.group_type_mapping = response["group_type_mapping"] or {}
+            self.cohorts = response["cohorts"] or {}
+
        except APIError as e:
            if e.status == 401:
-                raise APIError(
-                    status=401,
-                    message="You are using a write-only key with feature flags. "
-                    "To use feature flags, please set a personal_api_key "
-                    "More information: https://posthog.com/docs/api/overview",
+                self.log.error(
+                    "[FEATURE FLAGS] Error loading feature flags: To use feature flags, please set a valid personal_api_key. More information: https://posthog.com/docs/api/overview"
                )
+                if self.debug:
+                    raise APIError(
+                        status=401,
+                        message="You are using a write-only key with feature flags. "
+                        "To use feature flags, please set a personal_api_key "
+                        "More information: https://posthog.com/docs/api/overview",
+                    )
            else:
-                raise APIError(status=e.status, message=e.message)
+                self.log.error(f"[FEATURE FLAGS] Error loading feature flags: {e}")
        except Exception as e:
            self.log.warning(
                "[FEATURE FLAGS] Fetching feature flags failed with following error. We will retry in %s seconds."
@@ -336,7 +562,7 @@ class Client(object):
            )
            self.log.warning(e)

-        self._last_feature_flag_poll = datetime.utcnow().replace(tzinfo=tzutc())
+        self._last_feature_flag_poll = datetime.now(tz=tzutc())

    def load_feature_flags(self):
        if not self.personal_api_key:
@@ -349,12 +575,103 @@ class Client(object):
            self.poller = Poller(interval=timedelta(seconds=self.poll_interval), execute=self._load_feature_flags)
            self.poller.start()

-    def feature_enabled(self, key, distinct_id, default=False, *, groups={}):
+    def _compute_flag_locally(
+        self,
+        feature_flag,
+        distinct_id,
+        *,
+        groups={},
+        person_properties={},
+        group_properties={},
+        warn_on_unknown_groups=True,
+    ):
+        if feature_flag.get("ensure_experience_continuity", False):
+            raise InconclusiveMatchError("Flag has experience continuity enabled")
+
+        if not feature_flag.get("active"):
+            return False
+
+        flag_filters = feature_flag.get("filters") or {}
+        aggregation_group_type_index = flag_filters.get("aggregation_group_type_index")
+        if aggregation_group_type_index is not None:
+            group_name = self.group_type_mapping.get(str(aggregation_group_type_index))
+
+            if not group_name:
+                self.log.warning(
+                    f"[FEATURE FLAGS] Unknown group type index {aggregation_group_type_index} for feature flag {feature_flag['key']}"
+                )
+                # failover to `/decide/`
+                raise InconclusiveMatchError("Flag has unknown group type index")
+
+            if group_name not in groups:
+                # Group flags are never enabled in `groups` aren't passed in
+                # don't failover to `/decide/`, since response will be the same
+                if warn_on_unknown_groups:
+                    self.log.warning(
+                        f"[FEATURE FLAGS] Can't compute group feature flag: {feature_flag['key']} without group names passed in"
+                    )
+                else:
+                    self.log.debug(
+                        f"[FEATURE FLAGS] Can't compute group feature flag: {feature_flag['key']} without group names passed in"
+                    )
+                return False
+
+            focused_group_properties = group_properties[group_name]
+            return match_feature_flag_properties(feature_flag, groups[group_name], focused_group_properties)
+        else:
+            return match_feature_flag_properties(feature_flag, distinct_id, person_properties, self.cohorts)
+
+    def feature_enabled(
+        self,
+        key,
+        distinct_id,
+        *,
+        groups={},
+        person_properties={},
+        group_properties={},
+        only_evaluate_locally=False,
+        send_feature_flag_events=True,
+        disable_geoip=None,
+    ):
+        response = self.get_feature_flag(
+            key,
+            distinct_id,
+            groups=groups,
+            person_properties=person_properties,
+            group_properties=group_properties,
+            only_evaluate_locally=only_evaluate_locally,
+            send_feature_flag_events=send_feature_flag_events,
+            disable_geoip=disable_geoip,
+        )
+
+        if response is None:
+            return None
+        return bool(response)
+
+    def get_feature_flag(
+        self,
+        key,
+        distinct_id,
+        *,
+        groups={},
+        person_properties={},
+        group_properties={},
+        only_evaluate_locally=False,
+        send_feature_flag_events=True,
+        disable_geoip=None,
+    ):
        require("key", key, string_types)
        require("distinct_id", distinct_id, ID_TYPES)
        require("groups", groups, dict)

-        if self.feature_flags == None and self.personal_api_key:
+        if self.disabled:
+            return None
+
+        person_properties, group_properties = self._add_local_person_and_group_properties(
+            distinct_id, groups, person_properties, group_properties
+        )
+
+        if self.feature_flags is None and self.personal_api_key:
            self.load_feature_flags()
        response = None

@@ -362,37 +679,251 @@ class Client(object):
        if self.feature_flags:
            for flag in self.feature_flags:
                if flag["key"] == key:
-                    feature_flag = flag
-                    if feature_flag.get("is_simple_flag"):
-                        response = _hash(key, distinct_id) <= (feature_flag.get("rollout_percentage", 100) / 100)
-        if response == None:
+                    try:
+                        response = self._compute_flag_locally(
+                            flag,
+                            distinct_id,
+                            groups=groups,
+                            person_properties=person_properties,
+                            group_properties=group_properties,
+                        )
+                        self.log.debug(f"Successfully computed flag locally: {key} -> {response}")
+                    except InconclusiveMatchError as e:
+                        self.log.debug(f"Failed to compute flag {key} locally: {e}")
+                        continue
+                    except Exception as e:
+                        self.log.exception(f"[FEATURE FLAGS] Error while computing variant locally: {e}")
+                        continue
+
+        flag_was_locally_evaluated = response is not None
+        if not flag_was_locally_evaluated and not only_evaluate_locally:
            try:
-                request_data = {
-                    "distinct_id": distinct_id,
-                    "personal_api_key": self.personal_api_key,
-                    "groups": groups,
-                }
-                resp_data = decide(self.api_key, self.host, timeout=10, **request_data)
-            except Exception as e:
-                response = default
-                self.log.warning(
-                    "[FEATURE FLAGS] Unable to get data for flag %s, because of the following error:" % key
+                feature_flags = self.get_feature_variants(
+                    distinct_id,
+                    groups=groups,
+                    person_properties=person_properties,
+                    group_properties=group_properties,
+                    disable_geoip=disable_geoip,
                )
-                self.log.warning(e)
-            else:
-                response = resp_data["featureFlags"].get(key, default)
-        self.capture(distinct_id, "$feature_flag_called", {"$feature_flag": key, "$feature_flag_response": response})
+                response = feature_flags.get(key)
+                if response is None:
+                    response = False
+                self.log.debug(f"Successfully computed flag remotely: #{key} -> #{response}")
+            except Exception as e:
+                self.log.exception(f"[FEATURE FLAGS] Unable to get flag remotely: {e}")
+
+        feature_flag_reported_key = f"{key}_{str(response)}"
+        if (
+            feature_flag_reported_key not in self.distinct_ids_feature_flags_reported[distinct_id]
+            and send_feature_flag_events  # noqa: W503
+        ):
+            self.capture(
+                distinct_id,
+                "$feature_flag_called",
+                {
+                    "$feature_flag": key,
+                    "$feature_flag_response": response,
+                    "locally_evaluated": flag_was_locally_evaluated,
+                    f"$feature/{key}": response,
+                },
+                groups=groups,
+                disable_geoip=disable_geoip,
+            )
+            self.distinct_ids_feature_flags_reported[distinct_id].add(feature_flag_reported_key)
        return response

+    def get_feature_flag_payload(
+        self,
+        key,
+        distinct_id,
+        *,
+        match_value=None,
+        groups={},
+        person_properties={},
+        group_properties={},
+        only_evaluate_locally=False,
+        send_feature_flag_events=True,
+        disable_geoip=None,
+    ):
+        if self.disabled:
+            return None

-# This function takes a distinct_id and a feature flag key and returns a float between 0 and 1.
-# Given the same distinct_id and key, it'll always return the same float. These floats are
-# uniformly distributed between 0 and 1, so if we want to show this feature to 20% of traffic
-# we can do _hash(key, distinct_id) < 0.2
-def _hash(key, distinct_id):
-    hash_key = "%s.%s" % (key, distinct_id)
-    hash_val = int(hashlib.sha1(hash_key.encode("utf-8")).hexdigest()[:15], 16)
-    return hash_val / __LONG_SCALE__
+        if match_value is None:
+            match_value = self.get_feature_flag(
+                key,
+                distinct_id,
+                groups=groups,
+                person_properties=person_properties,
+                group_properties=group_properties,
+                send_feature_flag_events=False,
+                # Disable automatic sending of feature flag events because we're manually handling event dispatch.
+                # This prevents sending events with empty data when `get_feature_flag` cannot be evaluated locally.
+                only_evaluate_locally=True,  # Enable local evaluation of feature flags to avoid making multiple requests to `/decide`.
+                disable_geoip=disable_geoip,
+            )
+
+        response = None
+        payload = None
+
+        if match_value is not None:
+            payload = self._compute_payload_locally(key, match_value)
+
+        flag_was_locally_evaluated = payload is not None
+        if not flag_was_locally_evaluated and not only_evaluate_locally:
+            try:
+                responses_and_payloads = self.get_feature_flags_and_payloads(
+                    distinct_id, groups, person_properties, group_properties, disable_geoip
+                )
+                response = responses_and_payloads["featureFlags"].get(key, None)
+                payload = responses_and_payloads["featureFlagPayloads"].get(str(key).lower(), None)
+            except Exception as e:
+                self.log.exception(f"[FEATURE FLAGS] Unable to get feature flags and payloads: {e}")
+
+        feature_flag_reported_key = f"{key}_{str(response)}"
+
+        if (
+            feature_flag_reported_key not in self.distinct_ids_feature_flags_reported[distinct_id]
+            and send_feature_flag_events  # noqa: W503
+        ):
+            self.capture(
+                distinct_id,
+                "$feature_flag_called",
+                {
+                    "$feature_flag": key,
+                    "$feature_flag_response": response,
+                    "$feature_flag_payload": payload,
+                    "locally_evaluated": flag_was_locally_evaluated,
+                    f"$feature/{key}": response,
+                },
+                groups=groups,
+                disable_geoip=disable_geoip,
+            )
+            self.distinct_ids_feature_flags_reported[distinct_id].add(feature_flag_reported_key)
+
+        return payload
+
+    def _compute_payload_locally(self, key, match_value):
+        payload = None
+
+        if self.feature_flags_by_key is None:
+            return payload
+
+        flag_definition = self.feature_flags_by_key.get(key) or {}
+        flag_filters = flag_definition.get("filters") or {}
+        flag_payloads = flag_filters.get("payloads") or {}
+        payload = flag_payloads.get(str(match_value).lower(), None)
+        return payload
+
+    def get_all_flags(
+        self,
+        distinct_id,
+        *,
+        groups={},
+        person_properties={},
+        group_properties={},
+        only_evaluate_locally=False,
+        disable_geoip=None,
+    ):
+        flags = self.get_all_flags_and_payloads(
+            distinct_id,
+            groups=groups,
+            person_properties=person_properties,
+            group_properties=group_properties,
+            only_evaluate_locally=only_evaluate_locally,
+            disable_geoip=disable_geoip,
+        )
+        return flags["featureFlags"]
+
+    def get_all_flags_and_payloads(
+        self,
+        distinct_id,
+        *,
+        groups={},
+        person_properties={},
+        group_properties={},
+        only_evaluate_locally=False,
+        disable_geoip=None,
+    ):
+        if self.disabled:
+            return {"featureFlags": None, "featureFlagPayloads": None}
+
+        person_properties, group_properties = self._add_local_person_and_group_properties(
+            distinct_id, groups, person_properties, group_properties
+        )
+
+        flags, payloads, fallback_to_decide = self._get_all_flags_and_payloads_locally(
+            distinct_id, groups=groups, person_properties=person_properties, group_properties=group_properties
+        )
+        response = {"featureFlags": flags, "featureFlagPayloads": payloads}
+
+        if fallback_to_decide and not only_evaluate_locally:
+            try:
+                flags_and_payloads = self.get_decide(
+                    distinct_id,
+                    groups=groups,
+                    person_properties=person_properties,
+                    group_properties=group_properties,
+                    disable_geoip=disable_geoip,
+                )
+                response = flags_and_payloads
+            except Exception as e:
+                self.log.exception(f"[FEATURE FLAGS] Unable to get feature flags and payloads: {e}")
+
+        return response
+
+    def _get_all_flags_and_payloads_locally(
+        self, distinct_id, *, groups={}, person_properties={}, group_properties={}, warn_on_unknown_groups=False
+    ):
+        require("distinct_id", distinct_id, ID_TYPES)
+        require("groups", groups, dict)
+
+        if self.feature_flags is None and self.personal_api_key:
+            self.load_feature_flags()
+
+        flags = {}
+        payloads = {}
+        fallback_to_decide = False
+        # If loading in previous line failed
+        if self.feature_flags:
+            for flag in self.feature_flags:
+                try:
+                    flags[flag["key"]] = self._compute_flag_locally(
+                        flag,
+                        distinct_id,
+                        groups=groups,
+                        person_properties=person_properties,
+                        group_properties=group_properties,
+                        warn_on_unknown_groups=warn_on_unknown_groups,
+                    )
+                    matched_payload = self._compute_payload_locally(flag["key"], flags[flag["key"]])
+                    if matched_payload:
+                        payloads[flag["key"]] = matched_payload
+                except InconclusiveMatchError:
+                    # No need to log this, since it's just telling us to fall back to `/decide`
+                    fallback_to_decide = True
+                except Exception as e:
+                    self.log.exception(f"[FEATURE FLAGS] Error while computing variant and payload: {e}")
+                    fallback_to_decide = True
+        else:
+            fallback_to_decide = True
+
+        return flags, payloads, fallback_to_decide
+
+    def feature_flag_definitions(self):
+        return self.feature_flags
+
+    def _add_local_person_and_group_properties(self, distinct_id, groups, person_properties, group_properties):
+        all_person_properties = {"distinct_id": distinct_id, **(person_properties or {})}
+
+        all_group_properties = {}
+        if groups:
+            for group_name in groups:
+                all_group_properties[group_name] = {
+                    "$group_key": groups[group_name],
+                    **(group_properties.get(group_name) or {}),
+                }
+
+        return all_person_properties, all_group_properties


 def require(name, field, data_type):
@@ -12,11 +12,12 @@ try:
 except ImportError:
    from Queue import Empty

-MAX_MSG_SIZE = 32 << 10

-# Our servers only accept batches less than 500KB. Here limit is set slightly
-# lower to leave space for extra data that will be added later, eg. "sentAt".
-BATCH_SIZE_LIMIT = 475000
+MAX_MSG_SIZE = 900 * 1024  # 900KiB per event
+
+# The maximum request body size is currently 20MiB, let's be conservative
+# in case we want to lower it in the future.
+BATCH_SIZE_LIMIT = 5 * 1024 * 1024


 class Consumer(Thread):
@@ -35,6 +36,7 @@ class Consumer(Thread):
        gzip=False,
        retries=10,
        timeout=15,
+        historical_migration=False,
    ):
        """Create a consumer thread."""
        Thread.__init__(self)
@@ -54,6 +56,7 @@ class Consumer(Thread):
        self.running = True
        self.retries = retries
        self.timeout = timeout
+        self.historical_migration = historical_migration

    def run(self):
        """Runs the consumer."""
@@ -104,7 +107,7 @@ class Consumer(Thread):
                item = queue.get(block=True, timeout=self.flush_interval - elapsed)
                item_size = len(json.dumps(item, cls=DatetimeSerializer).encode())
                if item_size > MAX_MSG_SIZE:
-                    self.log.error("Item exceeds 32kb limit, dropping. (%s)", str(item))
+                    self.log.error("Item exceeds 900kib limit, dropping. (%s)", str(item))
                    continue
                items.append(item)
                total_size += item_size
@@ -133,6 +136,13 @@ class Consumer(Thread):

        @backoff.on_exception(backoff.expo, Exception, max_tries=self.retries + 1, giveup=fatal_exception)
        def send_request():
-            batch_post(self.api_key, self.host, gzip=self.gzip, timeout=self.timeout, batch=batch)
+            batch_post(
+                self.api_key,
+                self.host,
+                gzip=self.gzip,
+                timeout=self.timeout,
+                batch=batch,
+                historical_migration=self.historical_migration,
+            )

        send_request()
@@ -0,0 +1,64 @@
+import logging
+import sys
+import threading
+from enum import Enum
+from typing import TYPE_CHECKING, List, Optional
+
+if TYPE_CHECKING:
+    from posthog.client import Client
+
+
+class Integrations(str, Enum):
+    Django = "django"
+
+
+class ExceptionCapture:
+    # TODO: Add client side rate limiting to prevent spamming the server with exceptions
+
+    log = logging.getLogger("posthog")
+
+    def __init__(self, client: "Client", integrations: Optional[List[Integrations]] = None):
+        self.client = client
+        self.original_excepthook = sys.excepthook
+        sys.excepthook = self.exception_handler
+        threading.excepthook = self.thread_exception_handler
+        self.enabled_integrations = []
+
+        for integration in integrations or []:
+            # TODO: Maybe find a better way of enabling integrations
+            # This is very annoying currently if we had to add any configuration per integration
+            if integration == Integrations.Django:
+                try:
+                    from posthog.exception_integrations.django import DjangoIntegration
+
+                    enabled_integration = DjangoIntegration(self.exception_receiver)
+                    self.enabled_integrations.append(enabled_integration)
+                except Exception as e:
+                    self.log.exception(f"Failed to enable Django integration: {e}")
+
+    def close(self):
+        sys.excepthook = self.original_excepthook
+        for integration in self.enabled_integrations:
+            integration.uninstall()
+
+    def exception_handler(self, exc_type, exc_value, exc_traceback):
+        # don't affect default behaviour.
+        self.capture_exception((exc_type, exc_value, exc_traceback))
+        self.original_excepthook(exc_type, exc_value, exc_traceback)
+
+    def thread_exception_handler(self, args):
+        self.capture_exception((args.exc_type, args.exc_value, args.exc_traceback))
+
+    def exception_receiver(self, exc_info, extra_properties):
+        if "distinct_id" in extra_properties:
+            metadata = {"distinct_id": extra_properties["distinct_id"]}
+        else:
+            metadata = None
+        self.capture_exception((exc_info[0], exc_info[1], exc_info[2]), metadata)
+
+    def capture_exception(self, exception, metadata=None):
+        try:
+            distinct_id = metadata.get("distinct_id") if metadata else None
+            self.client.capture_exception(exception, distinct_id)
+        except Exception as e:
+            self.log.exception(f"Failed to capture exception: {e}")
@@ -0,0 +1,5 @@
+class IntegrationEnablingError(Exception):
+    """
+    The integration could not be enabled due to a user error like
+    `django` not being installed for the `DjangoIntegration`.
+    """
@@ -0,0 +1,88 @@
+import re
+import sys
+from typing import TYPE_CHECKING
+
+from posthog.exception_integrations import IntegrationEnablingError
+
+try:
+    from django import VERSION as DJANGO_VERSION
+    from django.core import signals
+
+except ImportError:
+    raise IntegrationEnablingError("Django not installed")
+
+
+if TYPE_CHECKING:
+    from typing import Any, Dict  # noqa: F401
+
+    from django.core.handlers.wsgi import WSGIRequest  # noqa: F401
+
+
+class DjangoIntegration:
+    # TODO: Abstract integrations one we have more and can see patterns
+    """
+    Autocapture errors from a Django application.
+    """
+
+    identifier = "django"
+
+    def __init__(self, capture_exception_fn=None):
+
+        if DJANGO_VERSION < (4, 2):
+            raise IntegrationEnablingError("Django 4.2 or newer is required.")
+
+        # TODO: Right now this seems too complicated / overkill for us, but seems like we can automatically plug in middlewares
+        # which is great for users (they don't need to do this) and everything should just work.
+        # We should consider this in the future, but for now we can just use the middleware and signals handlers.
+        # See: https://github.com/getsentry/sentry-python/blob/269d96d6e9821122fbff280e6a26956e5ed03c0b/sentry_sdk/integrations/django/__init__.py
+
+        self.capture_exception_fn = capture_exception_fn
+
+        def _got_request_exception(request=None, **kwargs):
+            # type: (WSGIRequest, **Any) -> None
+
+            extra_props = {}
+            if request is not None:
+                # get headers metadata
+                extra_props = DjangoRequestExtractor(request).extract_person_data()
+
+            self.capture_exception_fn(sys.exc_info(), extra_props)
+
+        signals.got_request_exception.connect(_got_request_exception)
+
+    def uninstall(self):
+        pass
+
+
+class DjangoRequestExtractor:
+
+    def __init__(self, request):
+        # type: (Any) -> None
+        self.request = request
+
+    def extract_person_data(self):
+        headers = self.headers()
+
+        # Extract traceparent and tracestate headers
+        traceparent = headers.get("traceparent")
+        tracestate = headers.get("tracestate")
+
+        # Extract the distinct_id from tracestate
+        distinct_id = None
+        if tracestate:
+            # TODO: Align on the format of the distinct_id in tracestate
+            # We can't have comma or equals in header values here, so maybe we should base64 encode it?
+            match = re.search(r"posthog-distinct-id=([^,]+)", tracestate)
+            if match:
+                distinct_id = match.group(1)
+
+        return {
+            "distinct_id": distinct_id,
+            "ip": headers.get("X-Forwarded-For"),
+            "user_agent": headers.get("User-Agent"),
+            "traceparent": traceparent,
+        }
+
+    def headers(self):
+        # type: () -> Dict[str, str]
+        return dict(self.request.headers)
@@ -0,0 +1,873 @@
+# copied and adapted from https://github.com/getsentry/sentry-python/blob/269d96d6e9821122fbff280e6a26956e5ed03c0b/sentry_sdk/utils.py#L689
+# 💖open source (under MIT License)
+# We want to keep payloads as similar to Sentry as possible for easy interoperability
+
+import linecache
+import os
+import re
+import sys
+from datetime import datetime
+from typing import TYPE_CHECKING
+
+try:
+    # Python 3.11
+    from builtins import BaseExceptionGroup
+except ImportError:
+    # Python 3.10 and below
+    BaseExceptionGroup = None  # type: ignore
+
+
+DEFAULT_MAX_VALUE_LENGTH = 1024
+
+
+if TYPE_CHECKING:
+
+    from types import FrameType, TracebackType
+    from typing import (  # noqa: F401
+        Any,
+        Callable,
+        Dict,
+        Iterator,
+        List,
+        Literal,
+        Optional,
+        Set,
+        Tuple,
+        Type,
+        TypedDict,
+        TypeVar,
+        Union,
+        cast,
+    )
+
+    ExcInfo = Union[
+        Tuple[Type[BaseException], BaseException, Optional[TracebackType]],
+        Tuple[None, None, None],
+    ]
+    LogLevelStr = Literal["fatal", "critical", "error", "warning", "info", "debug"]
+
+    Event = TypedDict(
+        "Event",
+        {
+            "breadcrumbs": Dict[Literal["values"], List[Dict[str, Any]]],  # TODO: We can expand on this type
+            "check_in_id": str,
+            "contexts": Dict[str, Dict[str, object]],
+            "dist": str,
+            "duration": Optional[float],
+            "environment": str,
+            "errors": List[Dict[str, Any]],  # TODO: We can expand on this type
+            "event_id": str,
+            "exception": Dict[Literal["values"], List[Dict[str, Any]]],  # TODO: We can expand on this type
+            # "extra": MutableMapping[str, object],
+            # "fingerprint": List[str],
+            "level": LogLevelStr,
+            # "logentry": Mapping[str, object],
+            "logger": str,
+            # "measurements": Dict[str, MeasurementValue],
+            "message": str,
+            "modules": Dict[str, str],
+            # "monitor_config": Mapping[str, object],
+            "monitor_slug": Optional[str],
+            "platform": Literal["python"],
+            "profile": object,  # Should be sentry_sdk.profiler.Profile, but we can't import that here due to circular imports
+            "release": str,
+            "request": Dict[str, object],
+            # "sdk": Mapping[str, object],
+            "server_name": str,
+            "spans": List[Dict[str, object]],
+            "stacktrace": Dict[str, object],  # We access this key in the code, but I am unsure whether we ever set it
+            "start_timestamp": datetime,
+            "status": Optional[str],
+            # "tags": MutableMapping[
+            #     str, str
+            # ],  # Tags must be less than 200 characters each
+            "threads": Dict[Literal["values"], List[Dict[str, Any]]],  # TODO: We can expand on this type
+            "timestamp": Optional[datetime],  # Must be set before sending the event
+            "transaction": str,
+            # "transaction_info": Mapping[str, Any],  # TODO: We can expand on this type
+            "type": Literal["check_in", "transaction"],
+            "user": Dict[str, object],
+            "_metrics_summary": Dict[str, object],
+        },
+        total=False,
+    )
+
+
+epoch = datetime(1970, 1, 1)
+
+
+BASE64_ALPHABET = re.compile(r"^[a-zA-Z0-9/+=]*$")
+
+SENSITIVE_DATA_SUBSTITUTE = "[Filtered]"
+
+
+def to_timestamp(value):
+    # type: (datetime) -> float
+    return (value - epoch).total_seconds()
+
+
+def format_timestamp(value):
+    # type: (datetime) -> str
+    return value.strftime("%Y-%m-%dT%H:%M:%S.%fZ")
+
+
+def event_hint_with_exc_info(exc_info=None):
+    # type: (Optional[ExcInfo]) -> Dict[str, Optional[ExcInfo]]
+    """Creates a hint with the exc info filled in."""
+    if exc_info is None:
+        exc_info = sys.exc_info()
+    else:
+        exc_info = exc_info_from_error(exc_info)
+    if exc_info[0] is None:
+        exc_info = None
+    return {"exc_info": exc_info}
+
+
+class AnnotatedValue:
+    """
+    Meta information for a data field in the event payload.
+    This is to tell Relay that we have tampered with the fields value.
+    See:
+    https://github.com/getsentry/relay/blob/be12cd49a0f06ea932ed9b9f93a655de5d6ad6d1/relay-general/src/types/meta.rs#L407-L423
+    """
+
+    __slots__ = ("value", "metadata")
+
+    def __init__(self, value, metadata):
+        # type: (Optional[Any], Dict[str, Any]) -> None
+        self.value = value
+        self.metadata = metadata
+
+    def __eq__(self, other):
+        # type: (Any) -> bool
+        if not isinstance(other, AnnotatedValue):
+            return False
+
+        return self.value == other.value and self.metadata == other.metadata
+
+    @classmethod
+    def removed_because_raw_data(cls):
+        # type: () -> AnnotatedValue
+        """The value was removed because it could not be parsed. This is done for request body values that are not json nor a form."""
+        return AnnotatedValue(
+            value="",
+            metadata={
+                "rem": [  # Remark
+                    [
+                        "!raw",  # Unparsable raw data
+                        "x",  # The fields original value was removed
+                    ]
+                ]
+            },
+        )
+
+    @classmethod
+    def removed_because_over_size_limit(cls):
+        # type: () -> AnnotatedValue
+        """The actual value was removed because the size of the field exceeded the configured maximum size (specified with the max_request_body_size sdk option)"""
+        return AnnotatedValue(
+            value="",
+            metadata={
+                "rem": [  # Remark
+                    [
+                        "!config",  # Because of configured maximum size
+                        "x",  # The fields original value was removed
+                    ]
+                ]
+            },
+        )
+
+    @classmethod
+    def substituted_because_contains_sensitive_data(cls):
+        # type: () -> AnnotatedValue
+        """The actual value was removed because it contained sensitive information."""
+        return AnnotatedValue(
+            value=SENSITIVE_DATA_SUBSTITUTE,
+            metadata={
+                "rem": [  # Remark
+                    [
+                        "!config",  # Because of SDK configuration (in this case the config is the hard coded removal of certain django cookies)
+                        "s",  # The fields original value was substituted
+                    ]
+                ]
+            },
+        )
+
+
+if TYPE_CHECKING:
+    T = TypeVar("T")
+    Annotated = Union[AnnotatedValue, T]
+
+
+def get_type_name(cls):
+    # type: (Optional[type]) -> Optional[str]
+    return getattr(cls, "__qualname__", None) or getattr(cls, "__name__", None)
+
+
+def get_type_module(cls):
+    # type: (Optional[type]) -> Optional[str]
+    mod = getattr(cls, "__module__", None)
+    if mod not in (None, "builtins", "__builtins__"):
+        return mod
+    return None
+
+
+def should_hide_frame(frame: "FrameType") -> bool:
+    try:
+        mod = frame.f_globals["__name__"]
+        if mod.startswith("sentry_sdk."):
+            return True
+    except (AttributeError, KeyError):
+        pass
+
+    for flag_name in "__traceback_hide__", "__tracebackhide__":
+        try:
+            if frame.f_locals[flag_name]:
+                return True
+        except Exception:
+            pass
+
+    return False
+
+
+def iter_stacks(tb):
+    # type: (Optional[TracebackType]) -> Iterator[TracebackType]
+    tb_ = tb  # type: Optional[TracebackType]
+    while tb_ is not None:
+        if not should_hide_frame(tb_.tb_frame):
+            yield tb_
+        tb_ = tb_.tb_next
+
+
+def get_lines_from_file(
+    filename,  # type: str
+    lineno,  # type: int
+    max_length=None,  # type: Optional[int]
+    loader=None,  # type: Optional[Any]
+    module=None,  # type: Optional[str]
+):
+    # type: (...) -> Tuple[List[Annotated[str]], Optional[Annotated[str]], List[Annotated[str]]]
+    context_lines = 5
+    source = None
+    if loader is not None and hasattr(loader, "get_source"):
+        try:
+            source_str = loader.get_source(module)  # type: Optional[str]
+        except (ImportError, IOError):
+            source_str = None
+        if source_str is not None:
+            source = source_str.splitlines()
+
+    if source is None:
+        try:
+            source = linecache.getlines(filename)
+        except (OSError, IOError):
+            return [], None, []
+
+    if not source:
+        return [], None, []
+
+    lower_bound = max(0, lineno - context_lines)
+    upper_bound = min(lineno + 1 + context_lines, len(source))
+
+    try:
+        pre_context = [strip_string(line.strip("\r\n"), max_length=max_length) for line in source[lower_bound:lineno]]
+        context_line = strip_string(source[lineno].strip("\r\n"), max_length=max_length)
+        post_context = [
+            strip_string(line.strip("\r\n"), max_length=max_length)
+            for line in source[(lineno + 1) : upper_bound]  # noqa: E203
+        ]
+        return pre_context, context_line, post_context
+    except IndexError:
+        # the file may have changed since it was loaded into memory
+        return [], None, []
+
+
+def get_source_context(
+    frame,  # type: FrameType
+    tb_lineno,  # type: int
+    max_value_length=None,  # type: Optional[int]
+):
+    # type: (...) -> Tuple[List[Annotated[str]], Optional[Annotated[str]], List[Annotated[str]]]
+    try:
+        abs_path = frame.f_code.co_filename  # type: Optional[str]
+    except Exception:
+        abs_path = None
+    try:
+        module = frame.f_globals["__name__"]
+    except Exception:
+        return [], None, []
+    try:
+        loader = frame.f_globals["__loader__"]
+    except Exception:
+        loader = None
+    lineno = tb_lineno - 1
+    if lineno is not None and abs_path:
+        return get_lines_from_file(abs_path, lineno, max_value_length, loader=loader, module=module)
+    return [], None, []
+
+
+def safe_str(value):
+    # type: (Any) -> str
+    try:
+        return str(value)
+    except Exception:
+        return safe_repr(value)
+
+
+def safe_repr(value):
+    # type: (Any) -> str
+    try:
+        return repr(value)
+    except Exception:
+        return "<broken repr>"
+
+
+def filename_for_module(module, abs_path):
+    # type: (Optional[str], Optional[str]) -> Optional[str]
+    if not abs_path or not module:
+        return abs_path
+
+    try:
+        if abs_path.endswith(".pyc"):
+            abs_path = abs_path[:-1]
+
+        base_module = module.split(".", 1)[0]
+        if base_module == module:
+            return os.path.basename(abs_path)
+
+        base_module_path = sys.modules[base_module].__file__
+        if not base_module_path:
+            return abs_path
+
+        return abs_path.split(base_module_path.rsplit(os.sep, 2)[0], 1)[-1].lstrip(os.sep)
+    except Exception:
+        return abs_path
+
+
+def serialize_frame(
+    frame,
+    tb_lineno=None,
+    include_local_variables=True,
+    include_source_context=True,
+    max_value_length=None,
+    custom_repr=None,
+):
+    # type: (FrameType, Optional[int], bool, bool, Optional[int], Optional[Callable[..., Optional[str]]]) -> Dict[str, Any]
+    f_code = getattr(frame, "f_code", None)
+    if not f_code:
+        abs_path = None
+        function = None
+    else:
+        abs_path = frame.f_code.co_filename
+        function = frame.f_code.co_name
+    try:
+        module = frame.f_globals["__name__"]
+    except Exception:
+        module = None
+
+    if tb_lineno is None:
+        tb_lineno = frame.f_lineno
+
+    rv = {
+        "platform": "python",
+        "filename": filename_for_module(module, abs_path) or None,
+        "abs_path": os.path.abspath(abs_path) if abs_path else None,
+        "function": function or "<unknown>",
+        "module": module,
+        "lineno": tb_lineno,
+    }  # type: Dict[str, Any]
+
+    if include_source_context:
+        rv["pre_context"], rv["context_line"], rv["post_context"] = get_source_context(
+            frame, tb_lineno, max_value_length
+        )
+
+    if include_local_variables:
+        # TODO(nk): Sort out this current invalid import
+        # from sentry_sdk.serializer import serialize
+
+        # rv["vars"] = serialize(
+        #     dict(frame.f_locals), is_vars=True, custom_repr=custom_repr
+        # )
+        pass
+
+    return rv
+
+
+def current_stacktrace(
+    include_local_variables=True,  # type: bool
+    include_source_context=True,  # type: bool
+    max_value_length=None,  # type: Optional[int]
+):
+    # type: (...) -> Dict[str, Any]
+    __tracebackhide__ = True
+    frames = []
+
+    f = sys._getframe()  # type: Optional[FrameType]
+    while f is not None:
+        if not should_hide_frame(f):
+            frames.append(
+                serialize_frame(
+                    f,
+                    include_local_variables=include_local_variables,
+                    include_source_context=include_source_context,
+                    max_value_length=max_value_length,
+                )
+            )
+        f = f.f_back
+
+    frames.reverse()
+
+    return {"frames": frames, "type": "raw"}
+
+
+def get_errno(exc_value):
+    # type: (BaseException) -> Optional[Any]
+    return getattr(exc_value, "errno", None)
+
+
+def get_error_message(exc_value):
+    # type: (Optional[BaseException]) -> str
+    return getattr(exc_value, "message", "") or getattr(exc_value, "detail", "") or safe_str(exc_value)
+
+
+def single_exception_from_error_tuple(
+    exc_type,  # type: Optional[type]
+    exc_value,  # type: Optional[BaseException]
+    tb,  # type: Optional[TracebackType]
+    client_options=None,  # type: Optional[Dict[str, Any]]
+    mechanism=None,  # type: Optional[Dict[str, Any]]
+    exception_id=None,  # type: Optional[int]
+    parent_id=None,  # type: Optional[int]
+    source=None,  # type: Optional[str]
+):
+    # type: (...) -> Dict[str, Any]
+    """
+    Creates a dict that goes into the events `exception.values` list and is ingestible by Sentry.
+
+    See the Exception Interface documentation for more details:
+    https://develop.sentry.dev/sdk/event-payloads/exception/
+    """
+    exception_value = {}  # type: Dict[str, Any]
+    exception_value["mechanism"] = mechanism.copy() if mechanism else {"type": "generic", "handled": True}
+    if exception_id is not None:
+        exception_value["mechanism"]["exception_id"] = exception_id
+
+    if exc_value is not None:
+        errno = get_errno(exc_value)
+    else:
+        errno = None
+
+    if errno is not None:
+        exception_value["mechanism"].setdefault("meta", {}).setdefault("errno", {}).setdefault("number", errno)
+
+    if source is not None:
+        exception_value["mechanism"]["source"] = source
+
+    is_root_exception = exception_id == 0
+    if not is_root_exception and parent_id is not None:
+        exception_value["mechanism"]["parent_id"] = parent_id
+        exception_value["mechanism"]["type"] = "chained"
+
+    if is_root_exception and "type" not in exception_value["mechanism"]:
+        exception_value["mechanism"]["type"] = "generic"
+
+    is_exception_group = BaseExceptionGroup is not None and isinstance(exc_value, BaseExceptionGroup)
+    if is_exception_group:
+        exception_value["mechanism"]["is_exception_group"] = True
+
+    exception_value["module"] = get_type_module(exc_type)
+    exception_value["type"] = get_type_name(exc_type)
+    exception_value["value"] = get_error_message(exc_value)
+
+    if client_options is None:
+        include_local_variables = True
+        include_source_context = True
+        max_value_length = DEFAULT_MAX_VALUE_LENGTH  # fallback
+        custom_repr = None
+    else:
+        include_local_variables = client_options["include_local_variables"]
+        include_source_context = client_options["include_source_context"]
+        max_value_length = client_options["max_value_length"]
+        custom_repr = client_options.get("custom_repr")
+
+    frames = [
+        serialize_frame(
+            tb.tb_frame,
+            tb_lineno=tb.tb_lineno,
+            include_local_variables=include_local_variables,
+            include_source_context=include_source_context,
+            max_value_length=max_value_length,
+            custom_repr=custom_repr,
+        )
+        for tb in iter_stacks(tb)
+    ]
+
+    if frames:
+        exception_value["stacktrace"] = {"frames": frames, "type": "raw"}
+
+    return exception_value
+
+
+HAS_CHAINED_EXCEPTIONS = hasattr(Exception, "__suppress_context__")
+
+if HAS_CHAINED_EXCEPTIONS:
+
+    def walk_exception_chain(exc_info):
+        # type: (ExcInfo) -> Iterator[ExcInfo]
+        exc_type, exc_value, tb = exc_info
+
+        seen_exceptions = []
+        seen_exception_ids = set()  # type: Set[int]
+
+        while exc_type is not None and exc_value is not None and id(exc_value) not in seen_exception_ids:
+            yield exc_type, exc_value, tb
+
+            # Avoid hashing random types we don't know anything
+            # about. Use the list to keep a ref so that the `id` is
+            # not used for another object.
+            seen_exceptions.append(exc_value)
+            seen_exception_ids.add(id(exc_value))
+
+            if exc_value.__suppress_context__:
+                cause = exc_value.__cause__
+            else:
+                cause = exc_value.__context__
+            if cause is None:
+                break
+            exc_type = type(cause)
+            exc_value = cause
+            tb = getattr(cause, "__traceback__", None)
+
+else:
+
+    def walk_exception_chain(exc_info):
+        # type: (ExcInfo) -> Iterator[ExcInfo]
+        yield exc_info
+
+
+def exceptions_from_error(
+    exc_type,  # type: Optional[type]
+    exc_value,  # type: Optional[BaseException]
+    tb,  # type: Optional[TracebackType]
+    client_options=None,  # type: Optional[Dict[str, Any]]
+    mechanism=None,  # type: Optional[Dict[str, Any]]
+    exception_id=0,  # type: int
+    parent_id=0,  # type: int
+    source=None,  # type: Optional[str]
+):
+    # type: (...) -> Tuple[int, List[Dict[str, Any]]]
+    """
+    Creates the list of exceptions.
+    This can include chained exceptions and exceptions from an ExceptionGroup.
+
+    See the Exception Interface documentation for more details:
+    https://develop.sentry.dev/sdk/event-payloads/exception/
+    """
+
+    parent = single_exception_from_error_tuple(
+        exc_type=exc_type,
+        exc_value=exc_value,
+        tb=tb,
+        client_options=client_options,
+        mechanism=mechanism,
+        exception_id=exception_id,
+        parent_id=parent_id,
+        source=source,
+    )
+    exceptions = [parent]
+
+    parent_id = exception_id
+    exception_id += 1
+
+    should_supress_context = hasattr(exc_value, "__suppress_context__") and exc_value.__suppress_context__  # type: ignore
+    if should_supress_context:
+        # Add direct cause.
+        # The field `__cause__` is set when raised with the exception (using the `from` keyword).
+        exception_has_cause = exc_value and hasattr(exc_value, "__cause__") and exc_value.__cause__ is not None
+        if exception_has_cause:
+            cause = exc_value.__cause__  # type: ignore
+            (exception_id, child_exceptions) = exceptions_from_error(
+                exc_type=type(cause),
+                exc_value=cause,
+                tb=getattr(cause, "__traceback__", None),
+                client_options=client_options,
+                mechanism=mechanism,
+                exception_id=exception_id,
+                source="__cause__",
+            )
+            exceptions.extend(child_exceptions)
+
+    else:
+        # Add indirect cause.
+        # The field `__context__` is assigned if another exception occurs while handling the exception.
+        exception_has_content = exc_value and hasattr(exc_value, "__context__") and exc_value.__context__ is not None
+        if exception_has_content:
+            context = exc_value.__context__  # type: ignore
+            (exception_id, child_exceptions) = exceptions_from_error(
+                exc_type=type(context),
+                exc_value=context,
+                tb=getattr(context, "__traceback__", None),
+                client_options=client_options,
+                mechanism=mechanism,
+                exception_id=exception_id,
+                source="__context__",
+            )
+            exceptions.extend(child_exceptions)
+
+    # Add exceptions from an ExceptionGroup.
+    is_exception_group = exc_value and hasattr(exc_value, "exceptions")
+    if is_exception_group:
+        for idx, e in enumerate(exc_value.exceptions):  # type: ignore
+            (exception_id, child_exceptions) = exceptions_from_error(
+                exc_type=type(e),
+                exc_value=e,
+                tb=getattr(e, "__traceback__", None),
+                client_options=client_options,
+                mechanism=mechanism,
+                exception_id=exception_id,
+                parent_id=parent_id,
+                source="exceptions[%s]" % idx,
+            )
+            exceptions.extend(child_exceptions)
+
+    return (exception_id, exceptions)
+
+
+def exceptions_from_error_tuple(
+    exc_info,  # type: ExcInfo
+    client_options=None,  # type: Optional[Dict[str, Any]]
+    mechanism=None,  # type: Optional[Dict[str, Any]]
+):
+    # type: (...) -> List[Dict[str, Any]]
+    exc_type, exc_value, tb = exc_info
+
+    is_exception_group = BaseExceptionGroup is not None and isinstance(exc_value, BaseExceptionGroup)
+
+    if is_exception_group:
+        (_, exceptions) = exceptions_from_error(
+            exc_type=exc_type,
+            exc_value=exc_value,
+            tb=tb,
+            client_options=client_options,
+            mechanism=mechanism,
+            exception_id=0,
+            parent_id=0,
+        )
+
+    else:
+        exceptions = []
+        for exc_type, exc_value, tb in walk_exception_chain(exc_info):
+            exceptions.append(single_exception_from_error_tuple(exc_type, exc_value, tb, client_options, mechanism))
+
+    exceptions.reverse()
+
+    return exceptions
+
+
+def to_string(value):
+    # type: (str) -> str
+    try:
+        return str(value)
+    except UnicodeDecodeError:
+        return repr(value)[1:-1]
+
+
+def iter_event_stacktraces(event):
+    # type: (Event) -> Iterator[Dict[str, Any]]
+    if "stacktrace" in event:
+        yield event["stacktrace"]
+    if "threads" in event:
+        for thread in event["threads"].get("values") or ():
+            if "stacktrace" in thread:
+                yield thread["stacktrace"]
+    if "exception" in event:
+        for exception in event["exception"].get("values") or ():
+            if "stacktrace" in exception:
+                yield exception["stacktrace"]
+
+
+def iter_event_frames(event):
+    # type: (Event) -> Iterator[Dict[str, Any]]
+    for stacktrace in iter_event_stacktraces(event):
+        for frame in stacktrace.get("frames") or ():
+            yield frame
+
+
+def handle_in_app(event, in_app_exclude=None, in_app_include=None, project_root=None):
+    # type: (Event, Optional[List[str]], Optional[List[str]], Optional[str]) -> Event
+    for stacktrace in iter_event_stacktraces(event):
+        set_in_app_in_frames(
+            stacktrace.get("frames"),
+            in_app_exclude=in_app_exclude,
+            in_app_include=in_app_include,
+            project_root=project_root,
+        )
+
+    return event
+
+
+def set_in_app_in_frames(frames, in_app_exclude, in_app_include, project_root=None):
+    # type: (Any, Optional[List[str]], Optional[List[str]], Optional[str]) -> Optional[Any]
+    if not frames:
+        return None
+
+    for frame in frames:
+        # if frame has already been marked as in_app, skip it
+        current_in_app = frame.get("in_app")
+        if current_in_app is not None:
+            continue
+
+        module = frame.get("module")
+
+        # check if module in frame is in the list of modules to include
+        if _module_in_list(module, in_app_include):
+            frame["in_app"] = True
+            continue
+
+        # check if module in frame is in the list of modules to exclude
+        if _module_in_list(module, in_app_exclude):
+            frame["in_app"] = False
+            continue
+
+        # if frame has no abs_path, skip further checks
+        abs_path = frame.get("abs_path")
+        if abs_path is None:
+            continue
+
+        if _is_external_source(abs_path):
+            frame["in_app"] = False
+            continue
+
+        if _is_in_project_root(abs_path, project_root):
+            frame["in_app"] = True
+            continue
+
+    return frames
+
+
+def exc_info_from_error(error):
+    # type: (Union[BaseException, ExcInfo]) -> ExcInfo
+    if isinstance(error, tuple) and len(error) == 3:
+        exc_type, exc_value, tb = error
+    elif isinstance(error, BaseException):
+        tb = getattr(error, "__traceback__", None)
+        if tb is not None:
+            exc_type = type(error)
+            exc_value = error
+        else:
+            exc_type, exc_value, tb = sys.exc_info()
+            if exc_value is not error:
+                tb = None
+                exc_value = error
+                exc_type = type(error)
+
+    else:
+        raise ValueError("Expected Exception object to report, got %s!" % type(error))
+
+    exc_info = (exc_type, exc_value, tb)
+
+    if TYPE_CHECKING:
+        # This cast is safe because exc_type and exc_value are either both
+        # None or both not None.
+        exc_info = cast(ExcInfo, exc_info)
+
+    return exc_info
+
+
+def event_from_exception(
+    exc_info,  # type: Union[BaseException, ExcInfo]
+    client_options=None,  # type: Optional[Dict[str, Any]]
+    mechanism=None,  # type: Optional[Dict[str, Any]]
+):
+    # type: (...) -> Tuple[Event, Dict[str, Any]]
+    exc_info = exc_info_from_error(exc_info)
+    hint = event_hint_with_exc_info(exc_info)
+    return (
+        {
+            "level": "error",
+            "exception": {"values": exceptions_from_error_tuple(exc_info, client_options, mechanism)},
+        },
+        hint,
+    )
+
+
+def _module_in_list(name, items):
+    # type: (str, Optional[List[str]]) -> bool
+    if name is None:
+        return False
+
+    if not items:
+        return False
+
+    for item in items:
+        if item == name or name.startswith(item + "."):
+            return True
+
+    return False
+
+
+def _is_external_source(abs_path):
+    # type: (str) -> bool
+    # check if frame is in 'site-packages' or 'dist-packages'
+    external_source = re.search(r"[\\/](?:dist|site)-packages[\\/]", abs_path) is not None
+    return external_source
+
+
+def _is_in_project_root(abs_path, project_root):
+    # type: (str, Optional[str]) -> bool
+    if project_root is None:
+        return False
+
+    # check if path is in the project root
+    if abs_path.startswith(project_root):
+        return True
+
+    return False
+
+
+def _truncate_by_bytes(string, max_bytes):
+    # type: (str, int) -> str
+    """
+    Truncate a UTF-8-encodable string to the last full codepoint so that it fits in max_bytes.
+    """
+    truncated = string.encode("utf-8")[: max_bytes - 3].decode("utf-8", errors="ignore")
+
+    return truncated + "..."
+
+
+def _get_size_in_bytes(value):
+    # type: (str) -> Optional[int]
+    try:
+        return len(value.encode("utf-8"))
+    except (UnicodeEncodeError, UnicodeDecodeError):
+        return None
+
+
+def strip_string(value, max_length=None):
+    # type: (str, Optional[int]) -> Union[AnnotatedValue, str]
+    if not value:
+        return value
+
+    if max_length is None:
+        max_length = DEFAULT_MAX_VALUE_LENGTH
+
+    byte_size = _get_size_in_bytes(value)
+    text_size = len(value)
+
+    if byte_size is not None and byte_size > max_length:
+        # truncate to max_length bytes, preserving code points
+        truncated_value = _truncate_by_bytes(value, max_length)
+    elif text_size is not None and text_size > max_length:
+        # fallback to truncating by string length
+        truncated_value = value[: max_length - 3] + "..."
+    else:
+        return value
+
+    return AnnotatedValue(
+        value=truncated_value,
+        metadata={
+            "len": byte_size or text_size,
+            "rem": [["!limit", "x", max_length - 3, max_length]],
+        },
+    )
@@ -0,0 +1,336 @@
+import datetime
+import hashlib
+import logging
+import re
+from typing import Optional
+
+from dateutil import parser
+from dateutil.relativedelta import relativedelta
+
+from posthog.utils import convert_to_datetime_aware, is_valid_regex
+
+__LONG_SCALE__ = float(0xFFFFFFFFFFFFFFF)
+
+log = logging.getLogger("posthog")
+
+NONE_VALUES_ALLOWED_OPERATORS = ["is_not"]
+
+
+class InconclusiveMatchError(Exception):
+    pass
+
+
+# This function takes a distinct_id and a feature flag key and returns a float between 0 and 1.
+# Given the same distinct_id and key, it'll always return the same float. These floats are
+# uniformly distributed between 0 and 1, so if we want to show this feature to 20% of traffic
+# we can do _hash(key, distinct_id) < 0.2
+def _hash(key, distinct_id, salt=""):
+    hash_key = f"{key}.{distinct_id}{salt}"
+    hash_val = int(hashlib.sha1(hash_key.encode("utf-8")).hexdigest()[:15], 16)
+    return hash_val / __LONG_SCALE__
+
+
+def get_matching_variant(flag, distinct_id):
+    hash_value = _hash(flag["key"], distinct_id, salt="variant")
+    for variant in variant_lookup_table(flag):
+        if hash_value >= variant["value_min"] and hash_value < variant["value_max"]:
+            return variant["key"]
+    return None
+
+
+def variant_lookup_table(feature_flag):
+    lookup_table = []
+    value_min = 0
+    multivariates = ((feature_flag.get("filters") or {}).get("multivariate") or {}).get("variants") or []
+    for variant in multivariates:
+        value_max = value_min + variant["rollout_percentage"] / 100
+        lookup_table.append({"value_min": value_min, "value_max": value_max, "key": variant["key"]})
+        value_min = value_max
+    return lookup_table
+
+
+def match_feature_flag_properties(flag, distinct_id, properties, cohort_properties=None):
+    flag_conditions = (flag.get("filters") or {}).get("groups") or []
+    is_inconclusive = False
+    cohort_properties = cohort_properties or {}
+
+    # Stable sort conditions with variant overrides to the top. This ensures that if overrides are present, they are
+    # evaluated first, and the variant override is applied to the first matching condition.
+    sorted_flag_conditions = sorted(
+        flag_conditions,
+        key=lambda condition: 0 if condition.get("variant") else 1,
+    )
+
+    for condition in sorted_flag_conditions:
+        try:
+            # if any one condition resolves to True, we can shortcircuit and return
+            # the matching variant
+            if is_condition_match(flag, distinct_id, condition, properties, cohort_properties):
+                variant_override = condition.get("variant")
+                # Some filters can be explicitly set to null, which require accessing variants like so
+                flag_variants = ((flag.get("filters") or {}).get("multivariate") or {}).get("variants") or []
+                if variant_override and variant_override in [variant["key"] for variant in flag_variants]:
+                    variant = variant_override
+                else:
+                    variant = get_matching_variant(flag, distinct_id)
+                return variant or True
+        except InconclusiveMatchError:
+            is_inconclusive = True
+
+    if is_inconclusive:
+        raise InconclusiveMatchError("Can't determine if feature flag is enabled or not with given properties")
+
+    # We can only return False when either all conditions are False, or
+    # no condition was inconclusive.
+    return False
+
+
+def is_condition_match(feature_flag, distinct_id, condition, properties, cohort_properties):
+    rollout_percentage = condition.get("rollout_percentage")
+    if len(condition.get("properties") or []) > 0:
+        for prop in condition.get("properties"):
+            property_type = prop.get("type")
+            if property_type == "cohort":
+                matches = match_cohort(prop, properties, cohort_properties)
+            else:
+                matches = match_property(prop, properties)
+            if not matches:
+                return False
+
+        if rollout_percentage is None:
+            return True
+
+    if rollout_percentage is not None and _hash(feature_flag["key"], distinct_id) > (rollout_percentage / 100):
+        return False
+
+    return True
+
+
+def match_property(property, property_values) -> bool:
+    # only looks for matches where key exists in override_property_values
+    # doesn't support operator is_not_set
+    key = property.get("key")
+    operator = property.get("operator") or "exact"
+    value = property.get("value")
+
+    if key not in property_values:
+        raise InconclusiveMatchError("can't match properties without a given property value")
+
+    if operator == "is_not_set":
+        raise InconclusiveMatchError("can't match properties with operator is_not_set")
+
+    override_value = property_values[key]
+
+    if (operator not in NONE_VALUES_ALLOWED_OPERATORS) and override_value is None:
+        return False
+
+    if operator in ("exact", "is_not"):
+
+        def compute_exact_match(value, override_value):
+            if isinstance(value, list):
+                return str(override_value).lower() in [str(val).lower() for val in value]
+            return str(value).lower() == str(override_value).lower()
+
+        if operator == "exact":
+            return compute_exact_match(value, override_value)
+        else:
+            return not compute_exact_match(value, override_value)
+
+    if operator == "is_set":
+        return key in property_values
+
+    if operator == "icontains":
+        return str(value).lower() in str(override_value).lower()
+
+    if operator == "not_icontains":
+        return str(value).lower() not in str(override_value).lower()
+
+    if operator == "regex":
+        return is_valid_regex(str(value)) and re.compile(str(value)).search(str(override_value)) is not None
+
+    if operator == "not_regex":
+        return is_valid_regex(str(value)) and re.compile(str(value)).search(str(override_value)) is None
+
+    if operator in ("gt", "gte", "lt", "lte"):
+        # :TRICKY: We adjust comparison based on the override value passed in,
+        # to make sure we handle both numeric and string comparisons appropriately.
+        def compare(lhs, rhs, operator):
+            if operator == "gt":
+                return lhs > rhs
+            elif operator == "gte":
+                return lhs >= rhs
+            elif operator == "lt":
+                return lhs < rhs
+            elif operator == "lte":
+                return lhs <= rhs
+            else:
+                raise ValueError(f"Invalid operator: {operator}")
+
+        parsed_value = None
+        try:
+            parsed_value = float(value)  # type: ignore
+        except Exception:
+            pass
+
+        if parsed_value is not None and override_value is not None:
+            if isinstance(override_value, str):
+                return compare(override_value, str(value), operator)
+            else:
+                return compare(override_value, parsed_value, operator)
+        else:
+            return compare(str(override_value), str(value), operator)
+
+    if operator in ["is_date_before", "is_date_after"]:
+        try:
+            parsed_date = relative_date_parse_for_feature_flag_matching(str(value))
+
+            if not parsed_date:
+                parsed_date = parser.parse(str(value))
+                parsed_date = convert_to_datetime_aware(parsed_date)
+        except Exception as e:
+            raise InconclusiveMatchError("The date set on the flag is not a valid format") from e
+
+        if not parsed_date:
+            raise InconclusiveMatchError("The date set on the flag is not a valid format")
+
+        if isinstance(override_value, datetime.datetime):
+            override_date = convert_to_datetime_aware(override_value)
+            if operator == "is_date_before":
+                return override_date < parsed_date
+            else:
+                return override_date > parsed_date
+        elif isinstance(override_value, datetime.date):
+            if operator == "is_date_before":
+                return override_value < parsed_date.date()
+            else:
+                return override_value > parsed_date.date()
+        elif isinstance(override_value, str):
+            try:
+                override_date = parser.parse(override_value)
+                override_date = convert_to_datetime_aware(override_date)
+                if operator == "is_date_before":
+                    return override_date < parsed_date
+                else:
+                    return override_date > parsed_date
+            except Exception:
+                raise InconclusiveMatchError("The date provided is not a valid format")
+        else:
+            raise InconclusiveMatchError("The date provided must be a string or date object")
+
+    # if we get here, we don't know how to handle the operator
+    raise InconclusiveMatchError(f"Unknown operator {operator}")
+
+
+def match_cohort(property, property_values, cohort_properties) -> bool:
+    # Cohort properties are in the form of property groups like this:
+    # {
+    #     "cohort_id": {
+    #         "type": "AND|OR",
+    #         "values": [{
+    #            "key": "property_name", "value": "property_value"
+    #        }]
+    #     }
+    # }
+    cohort_id = str(property.get("value"))
+    if cohort_id not in cohort_properties:
+        raise InconclusiveMatchError("can't match cohort without a given cohort property value")
+
+    property_group = cohort_properties[cohort_id]
+    return match_property_group(property_group, property_values, cohort_properties)
+
+
+def match_property_group(property_group, property_values, cohort_properties) -> bool:
+    if not property_group:
+        return True
+
+    property_group_type = property_group.get("type")
+    properties = property_group.get("values")
+
+    if not properties or len(properties) == 0:
+        # empty groups are no-ops, always match
+        return True
+
+    error_matching_locally = False
+
+    if "values" in properties[0]:
+        # a nested property group
+        for prop in properties:
+            try:
+                matches = match_property_group(prop, property_values, cohort_properties)
+                if property_group_type == "AND":
+                    if not matches:
+                        return False
+                else:
+                    # OR group
+                    if matches:
+                        return True
+            except InconclusiveMatchError as e:
+                log.debug(f"Failed to compute property {prop} locally: {e}")
+                error_matching_locally = True
+
+        if error_matching_locally:
+            raise InconclusiveMatchError("Can't match cohort without a given cohort property value")
+        # if we get here, all matched in AND case, or none matched in OR case
+        return property_group_type == "AND"
+
+    else:
+        for prop in properties:
+            try:
+                if prop.get("type") == "cohort":
+                    matches = match_cohort(prop, property_values, cohort_properties)
+                else:
+                    matches = match_property(prop, property_values)
+
+                negation = prop.get("negation", False)
+
+                if property_group_type == "AND":
+                    # if negated property, do the inverse
+                    if not matches and not negation:
+                        return False
+                    if matches and negation:
+                        return False
+                else:
+                    # OR group
+                    if matches and not negation:
+                        return True
+                    if not matches and negation:
+                        return True
+            except InconclusiveMatchError as e:
+                log.debug(f"Failed to compute property {prop} locally: {e}")
+                error_matching_locally = True
+
+        if error_matching_locally:
+            raise InconclusiveMatchError("can't match cohort without a given cohort property value")
+
+        # if we get here, all matched in AND case, or none matched in OR case
+        return property_group_type == "AND"
+
+
+def relative_date_parse_for_feature_flag_matching(value: str) -> Optional[datetime.datetime]:
+    regex = r"^-?(?P<number>[0-9]+)(?P<interval>[a-z])$"
+    match = re.search(regex, value)
+    parsed_dt = datetime.datetime.now(datetime.timezone.utc)
+    if match:
+        number = int(match.group("number"))
+
+        if number >= 10_000:
+            # Guard against overflow, disallow numbers greater than 10_000
+            return None
+
+        interval = match.group("interval")
+        if interval == "h":
+            parsed_dt = parsed_dt - relativedelta(hours=number)
+        elif interval == "d":
+            parsed_dt = parsed_dt - relativedelta(days=number)
+        elif interval == "w":
+            parsed_dt = parsed_dt - relativedelta(weeks=number)
+        elif interval == "m":
+            parsed_dt = parsed_dt - relativedelta(months=number)
+        elif interval == "y":
+            parsed_dt = parsed_dt - relativedelta(years=number)
+        else:
+            return None
+
+        return parsed_dt
+    else:
+        return None
@@ -13,17 +13,31 @@ from posthog.version import VERSION

 _session = requests.sessions.Session()

-DEFAULT_HOST = "https://app.posthog.com"
+US_INGESTION_ENDPOINT = "https://us.i.posthog.com"
+EU_INGESTION_ENDPOINT = "https://eu.i.posthog.com"
+DEFAULT_HOST = US_INGESTION_ENDPOINT
 USER_AGENT = "posthog-python/" + VERSION


+def determine_server_host(host: Optional[str]) -> str:
+    """Determines the server host to use."""
+    host_or_default = host or DEFAULT_HOST
+    trimmed_host = remove_trailing_slash(host_or_default)
+    if trimmed_host in ("https://app.posthog.com", "https://us.posthog.com"):
+        return US_INGESTION_ENDPOINT
+    elif trimmed_host == "https://eu.posthog.com":
+        return EU_INGESTION_ENDPOINT
+    else:
+        return host_or_default
+
+
 def post(
    api_key: str, host: Optional[str] = None, path=None, gzip: bool = False, timeout: int = 15, **kwargs
 ) -> requests.Response:
    """Post the `kwargs` to the API"""
    log = logging.getLogger("posthog")
    body = kwargs
-    body["sentAt"] = datetime.utcnow().replace(tzinfo=tzutc()).isoformat()
+    body["sentAt"] = datetime.now(tz=tzutc()).isoformat()
    url = remove_trailing_slash(host or DEFAULT_HOST) + path
    body["api_key"] = api_key
    data = json.dumps(body, cls=DatetimeSerializer)
@@ -50,11 +64,6 @@ def _process_response(
    res: requests.Response, success_message: str, *, return_json: bool = True
 ) -> Union[requests.Response, Any]:
    log = logging.getLogger("posthog")
-    if not res:
-        raise APIError(
-            "N/A",
-            "Error when fetching PostHog API, please make sure you are using your public project token/key and not a private API key.",
-        )
    if res.status_code == 200:
        log.debug(success_message)
        return res.json() if return_json else res
@@ -62,13 +71,13 @@ def _process_response(
        payload = res.json()
        log.debug("received response: %s", payload)
        raise APIError(res.status_code, payload["detail"])
-    except ValueError:
+    except (KeyError, ValueError):
        raise APIError(res.status_code, res.text)


 def decide(api_key: str, host: Optional[str] = None, gzip: bool = False, timeout: int = 15, **kwargs) -> Any:
    """Post the `kwargs to the decide API endpoint"""
-    res = post(api_key, host, "/decide/?v=2", gzip, timeout, **kwargs)
+    res = post(api_key, host, "/decide/?v=3", gzip, timeout, **kwargs)
    return _process_response(res, success_message="Feature flags decided successfully")


@@ -11,7 +11,7 @@ def get_distinct_id(request):
        return None
    try:
        return GET_DISTINCT_ID(request)
-    except:
+    except:  # noqa: E722
        return None


@@ -1,5 +1,4 @@
 from sentry_sdk._types import MYPY
-from sentry_sdk.client import Client
 from sentry_sdk.hub import Hub
 from sentry_sdk.integrations import Integration
 from sentry_sdk.scope import add_global_event_processor
@@ -10,9 +9,9 @@ from posthog.request import DEFAULT_HOST
 from posthog.sentry import POSTHOG_ID_TAG

 if MYPY:
-    from typing import Any, Dict, Optional
+    from typing import Optional  # noqa: F401

-    from sentry_sdk._types import Event, Hint
+    from sentry_sdk._types import Event, Hint  # noqa: F401


 class PostHogIntegration(Integration):
@@ -44,9 +43,9 @@ class PostHogIntegration(Integration):
                            not not Hub.current.client.dsn and Dsn(Hub.current.client.dsn).project_id
                        )
                        if project_id:
-                            properties[
-                                "$sentry_url"
-                            ] = f"{PostHogIntegration.prefix}{PostHogIntegration.organization}/issues/?project={project_id}&query={event['event_id']}"
+                            properties["$sentry_url"] = (
+                                f"{PostHogIntegration.prefix}{PostHogIntegration.organization}/issues/?project={project_id}&query={event['event_id']}"
+                            )

                    posthog.capture(posthog_distinct_id, "$exception", properties)

@@ -0,0 +1,3 @@
+import pytest
+
+pytest.importorskip("django")
@@ -0,0 +1,68 @@
+from posthog.exception_integrations.django import DjangoRequestExtractor
+
+DEFAULT_USER_AGENT = (
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3"
+)
+
+
+def mock_request_factory(override_headers):
+    class Request:
+        META = {}
+        # TRICKY: Actual django request dict object has case insensitive matching, and strips http from the names
+        headers = {
+            "User-Agent": DEFAULT_USER_AGENT,
+            "Referrer": "http://example.com",
+            "X-Forwarded-For": "193.4.5.12",
+            **(override_headers or {}),
+        }
+
+    return Request()
+
+
+def test_request_extractor_with_no_trace():
+    request = mock_request_factory(None)
+    extractor = DjangoRequestExtractor(request)
+    assert extractor.extract_person_data() == {
+        "ip": "193.4.5.12",
+        "user_agent": DEFAULT_USER_AGENT,
+        "traceparent": None,
+        "distinct_id": None,
+    }
+
+
+def test_request_extractor_with_trace():
+    request = mock_request_factory({"traceparent": "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01"})
+    extractor = DjangoRequestExtractor(request)
+    assert extractor.extract_person_data() == {
+        "ip": "193.4.5.12",
+        "user_agent": DEFAULT_USER_AGENT,
+        "traceparent": "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01",
+        "distinct_id": None,
+    }
+
+
+def test_request_extractor_with_tracestate():
+    request = mock_request_factory(
+        {
+            "traceparent": "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01",
+            "tracestate": "posthog-distinct-id=1234",
+        }
+    )
+    extractor = DjangoRequestExtractor(request)
+    assert extractor.extract_person_data() == {
+        "ip": "193.4.5.12",
+        "user_agent": DEFAULT_USER_AGENT,
+        "traceparent": "00-0af7651916cd43dd8448eb211c80319c-b7ad6b7169203331-01",
+        "distinct_id": "1234",
+    }
+
+
+def test_request_extractor_with_complicated_tracestate():
+    request = mock_request_factory({"tracestate": "posthog-distinct-id=alohaMountainsXUYZ,rojo=00f067aa0ba902b7"})
+    extractor = DjangoRequestExtractor(request)
+    assert extractor.extract_person_data() == {
+        "ip": "193.4.5.12",
+        "user_agent": DEFAULT_USER_AGENT,
+        "traceparent": None,
+        "distinct_id": "alohaMountainsXUYZ",
+    }
@@ -1,27 +1,38 @@
 import time
 import unittest
-from datetime import date, datetime
+from datetime import datetime
 from uuid import uuid4

 import mock
 import six
-from freezegun import freeze_time

 from posthog.client import Client
-from posthog.request import APIError
-from posthog.test.test_utils import TEST_API_KEY
+from posthog.test.test_utils import FAKE_TEST_API_KEY
 from posthog.version import VERSION


 class TestClient(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        # This ensures no real HTTP POST requests are made
+        cls.client_post_patcher = mock.patch("posthog.client.batch_post")
+        cls.consumer_post_patcher = mock.patch("posthog.consumer.batch_post")
+        cls.client_post_patcher.start()
+        cls.consumer_post_patcher.start()
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.client_post_patcher.stop()
+        cls.consumer_post_patcher.stop()
+
    def set_fail(self, e, batch):
        """Mark the failure handler"""
-        print("FAIL", e, batch)
+        print("FAIL", e, batch)  # noqa: T201
        self.failed = True

    def setUp(self):
        self.failed = False
-        self.client = Client(TEST_API_KEY, on_error=self.set_fail)
+        self.client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail)

    def test_requires_api_key(self):
        self.assertRaises(AssertionError, Client)
@@ -59,8 +70,7 @@ class TestClient(unittest.TestCase):
        self.assertEqual(msg["properties"]["$lib_version"], VERSION)

    def test_basic_capture_with_project_api_key(self):
-
-        client = Client(project_api_key=TEST_API_KEY, on_error=self.set_fail)
+        client = Client(project_api_key=FAKE_TEST_API_KEY, on_error=self.set_fail)

        success, msg = client.capture("distinct_id", "python test event")
        client.flush()
@@ -74,6 +84,486 @@ class TestClient(unittest.TestCase):
        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
        self.assertEqual(msg["properties"]["$lib_version"], VERSION)

+    def test_basic_super_properties(self):
+        client = Client(FAKE_TEST_API_KEY, super_properties={"source": "repo-name"})
+
+        _, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertEqual(msg["properties"]["source"], "repo-name")
+
+        _, msg = client.identify("distinct_id", {"trait": "value"})
+        client.flush()
+
+        self.assertEqual(msg["$set"]["trait"], "value")
+        self.assertEqual(msg["properties"]["source"], "repo-name")
+
+    def test_basic_capture_exception(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            client = self.client
+            exception = Exception("test exception")
+            client.capture_exception(exception, distinct_id="distinct_id")
+
+            self.assertTrue(patch_capture.called)
+            capture_call = patch_capture.call_args[0]
+            self.assertEqual(capture_call[0], "distinct_id")
+            self.assertEqual(capture_call[1], "$exception")
+            self.assertEqual(
+                capture_call[2],
+                {
+                    "$exception_type": "Exception",
+                    "$exception_message": "test exception",
+                    "$exception_list": [
+                        {
+                            "mechanism": {"type": "generic", "handled": True},
+                            "module": None,
+                            "type": "Exception",
+                            "value": "test exception",
+                        }
+                    ],
+                    "$exception_personURL": "https://us.i.posthog.com/project/random_key/person/distinct_id",
+                },
+            )
+
+    def test_basic_capture_exception_with_distinct_id(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            client = self.client
+            exception = Exception("test exception")
+            client.capture_exception(exception, "distinct_id")
+
+            self.assertTrue(patch_capture.called)
+            capture_call = patch_capture.call_args[0]
+            self.assertEqual(capture_call[0], "distinct_id")
+            self.assertEqual(capture_call[1], "$exception")
+            self.assertEqual(
+                capture_call[2],
+                {
+                    "$exception_type": "Exception",
+                    "$exception_message": "test exception",
+                    "$exception_list": [
+                        {
+                            "mechanism": {"type": "generic", "handled": True},
+                            "module": None,
+                            "type": "Exception",
+                            "value": "test exception",
+                        }
+                    ],
+                    "$exception_personURL": "https://us.i.posthog.com/project/random_key/person/distinct_id",
+                },
+            )
+
+    def test_basic_capture_exception_with_correct_host_generation(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, host="https://aloha.com")
+            exception = Exception("test exception")
+            client.capture_exception(exception, "distinct_id")
+
+            self.assertTrue(patch_capture.called)
+            capture_call = patch_capture.call_args[0]
+            self.assertEqual(capture_call[0], "distinct_id")
+            self.assertEqual(capture_call[1], "$exception")
+            self.assertEqual(
+                capture_call[2],
+                {
+                    "$exception_type": "Exception",
+                    "$exception_message": "test exception",
+                    "$exception_list": [
+                        {
+                            "mechanism": {"type": "generic", "handled": True},
+                            "module": None,
+                            "type": "Exception",
+                            "value": "test exception",
+                        }
+                    ],
+                    "$exception_personURL": "https://aloha.com/project/random_key/person/distinct_id",
+                },
+            )
+
+    def test_basic_capture_exception_with_correct_host_generation_for_server_hosts(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, host="https://app.posthog.com")
+            exception = Exception("test exception")
+            client.capture_exception(exception, "distinct_id")
+
+            self.assertTrue(patch_capture.called)
+            capture_call = patch_capture.call_args[0]
+            self.assertEqual(capture_call[0], "distinct_id")
+            self.assertEqual(capture_call[1], "$exception")
+            self.assertEqual(
+                capture_call[2],
+                {
+                    "$exception_type": "Exception",
+                    "$exception_message": "test exception",
+                    "$exception_list": [
+                        {
+                            "mechanism": {"type": "generic", "handled": True},
+                            "module": None,
+                            "type": "Exception",
+                            "value": "test exception",
+                        }
+                    ],
+                    "$exception_personURL": "https://app.posthog.com/project/random_key/person/distinct_id",
+                },
+            )
+
+    def test_basic_capture_exception_with_no_exception_given(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            client = self.client
+            try:
+                raise Exception("test exception")
+            except Exception:
+                client.capture_exception(distinct_id="distinct_id")
+
+            self.assertTrue(patch_capture.called)
+            capture_call = patch_capture.call_args[0]
+            self.assertEqual(capture_call[0], "distinct_id")
+            self.assertEqual(capture_call[1], "$exception")
+            self.assertEqual(capture_call[2]["$exception_type"], "Exception")
+            self.assertEqual(capture_call[2]["$exception_message"], "test exception")
+            self.assertEqual(capture_call[2]["$exception_list"][0]["mechanism"]["type"], "generic")
+            self.assertEqual(capture_call[2]["$exception_list"][0]["mechanism"]["handled"], True)
+            self.assertEqual(capture_call[2]["$exception_list"][0]["module"], None)
+            self.assertEqual(capture_call[2]["$exception_list"][0]["type"], "Exception")
+            self.assertEqual(capture_call[2]["$exception_list"][0]["value"], "test exception")
+            self.assertEqual(
+                capture_call[2]["$exception_list"][0]["stacktrace"]["type"],
+                "raw",
+            )
+            self.assertEqual(
+                capture_call[2]["$exception_list"][0]["stacktrace"]["frames"][0]["filename"],
+                "posthog/test/test_client.py",
+            )
+            self.assertEqual(
+                capture_call[2]["$exception_list"][0]["stacktrace"]["frames"][0]["function"],
+                "test_basic_capture_exception_with_no_exception_given",
+            )
+            self.assertEqual(
+                capture_call[2]["$exception_list"][0]["stacktrace"]["frames"][0]["module"], "posthog.test.test_client"
+            )
+            self.assertEqual(capture_call[2]["$exception_list"][0]["stacktrace"]["frames"][0]["in_app"], True)
+
+    def test_basic_capture_exception_with_no_exception_happening(self):
+
+        with mock.patch.object(Client, "capture", return_value=None) as patch_capture:
+            with self.assertLogs("posthog", level="WARNING") as logs:
+
+                client = self.client
+                client.capture_exception()
+
+                self.assertFalse(patch_capture.called)
+                self.assertEqual(
+                    logs.output[0],
+                    "WARNING:posthog:No exception information available",
+                )
+
+    @mock.patch("posthog.client.decide")
+    def test_basic_capture_with_feature_flags(self, patch_decide):
+        patch_decide.return_value = {"featureFlags": {"beta-feature": "random-variant"}}
+
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, personal_api_key=FAKE_TEST_API_KEY)
+        success, msg = client.capture("distinct_id", "python test event", send_feature_flags=True)
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertEqual(msg["properties"]["$feature/beta-feature"], "random-variant")
+        self.assertEqual(msg["properties"]["$active_feature_flags"], ["beta-feature"])
+
+        self.assertEqual(patch_decide.call_count, 1)
+
+    @mock.patch("posthog.client.decide")
+    def test_basic_capture_with_locally_evaluated_feature_flags(self, patch_decide):
+        patch_decide.return_value = {"featureFlags": {"beta-feature": "random-variant"}}
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, personal_api_key=FAKE_TEST_API_KEY)
+
+        multivariate_flag = {
+            "id": 1,
+            "name": "Beta Feature",
+            "key": "beta-feature-local",
+            "is_simple_flag": False,
+            "active": True,
+            "rollout_percentage": 100,
+            "filters": {
+                "groups": [
+                    {
+                        "properties": [
+                            {"key": "email", "type": "person", "value": "test@posthog.com", "operator": "exact"}
+                        ],
+                        "rollout_percentage": 100,
+                    },
+                    {
+                        "rollout_percentage": 50,
+                    },
+                ],
+                "multivariate": {
+                    "variants": [
+                        {"key": "first-variant", "name": "First Variant", "rollout_percentage": 50},
+                        {"key": "second-variant", "name": "Second Variant", "rollout_percentage": 25},
+                        {"key": "third-variant", "name": "Third Variant", "rollout_percentage": 25},
+                    ]
+                },
+                "payloads": {"first-variant": "some-payload", "third-variant": {"a": "json"}},
+            },
+        }
+        basic_flag = {
+            "id": 1,
+            "name": "Beta Feature",
+            "key": "person-flag",
+            "is_simple_flag": True,
+            "active": True,
+            "filters": {
+                "groups": [
+                    {
+                        "properties": [
+                            {
+                                "key": "region",
+                                "operator": "exact",
+                                "value": ["USA"],
+                                "type": "person",
+                            }
+                        ],
+                        "rollout_percentage": 100,
+                    }
+                ],
+                "payloads": {"true": 300},
+            },
+        }
+        false_flag = {
+            "id": 1,
+            "name": "Beta Feature",
+            "key": "false-flag",
+            "is_simple_flag": True,
+            "active": True,
+            "filters": {
+                "groups": [
+                    {
+                        "properties": [],
+                        "rollout_percentage": 0,
+                    }
+                ],
+                "payloads": {"true": 300},
+            },
+        }
+        client.feature_flags = [multivariate_flag, basic_flag, false_flag]
+
+        success, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertEqual(msg["properties"]["$feature/beta-feature-local"], "third-variant")
+        self.assertEqual(msg["properties"]["$feature/false-flag"], False)
+        self.assertEqual(msg["properties"]["$active_feature_flags"], ["beta-feature-local"])
+        assert "$feature/beta-feature" not in msg["properties"]
+
+        self.assertEqual(patch_decide.call_count, 0)
+
+        # test that flags are not evaluated without local evaluation
+        client.feature_flags = []
+        success, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+        assert "$feature/beta-feature" not in msg["properties"]
+        assert "$feature/beta-feature-local" not in msg["properties"]
+        assert "$feature/false-flag" not in msg["properties"]
+        assert "$active_feature_flags" not in msg["properties"]
+
+    @mock.patch("posthog.client.decide")
+    def test_dont_override_capture_with_local_flags(self, patch_decide):
+        patch_decide.return_value = {"featureFlags": {"beta-feature": "random-variant"}}
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, personal_api_key=FAKE_TEST_API_KEY)
+
+        multivariate_flag = {
+            "id": 1,
+            "name": "Beta Feature",
+            "key": "beta-feature-local",
+            "is_simple_flag": False,
+            "active": True,
+            "rollout_percentage": 100,
+            "filters": {
+                "groups": [
+                    {
+                        "properties": [
+                            {"key": "email", "type": "person", "value": "test@posthog.com", "operator": "exact"}
+                        ],
+                        "rollout_percentage": 100,
+                    },
+                    {
+                        "rollout_percentage": 50,
+                    },
+                ],
+                "multivariate": {
+                    "variants": [
+                        {"key": "first-variant", "name": "First Variant", "rollout_percentage": 50},
+                        {"key": "second-variant", "name": "Second Variant", "rollout_percentage": 25},
+                        {"key": "third-variant", "name": "Third Variant", "rollout_percentage": 25},
+                    ]
+                },
+                "payloads": {"first-variant": "some-payload", "third-variant": {"a": "json"}},
+            },
+        }
+        basic_flag = {
+            "id": 1,
+            "name": "Beta Feature",
+            "key": "person-flag",
+            "is_simple_flag": True,
+            "active": True,
+            "filters": {
+                "groups": [
+                    {
+                        "properties": [
+                            {
+                                "key": "region",
+                                "operator": "exact",
+                                "value": ["USA"],
+                                "type": "person",
+                            }
+                        ],
+                        "rollout_percentage": 100,
+                    }
+                ],
+                "payloads": {"true": 300},
+            },
+        }
+        client.feature_flags = [multivariate_flag, basic_flag]
+
+        success, msg = client.capture(
+            "distinct_id", "python test event", {"$feature/beta-feature-local": "my-custom-variant"}
+        )
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertEqual(msg["properties"]["$feature/beta-feature-local"], "my-custom-variant")
+        self.assertEqual(msg["properties"]["$active_feature_flags"], ["beta-feature-local"])
+        assert "$feature/beta-feature" not in msg["properties"]
+        assert "$feature/person-flag" not in msg["properties"]
+
+        self.assertEqual(patch_decide.call_count, 0)
+
+    @mock.patch("posthog.client.decide")
+    def test_basic_capture_with_feature_flags_returns_active_only(self, patch_decide):
+        patch_decide.return_value = {
+            "featureFlags": {"beta-feature": "random-variant", "alpha-feature": True, "off-feature": False}
+        }
+
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, personal_api_key=FAKE_TEST_API_KEY)
+        success, msg = client.capture("distinct_id", "python test event", send_feature_flags=True)
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertTrue(msg["properties"]["$geoip_disable"])
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertEqual(msg["properties"]["$feature/beta-feature"], "random-variant")
+        self.assertEqual(msg["properties"]["$feature/alpha-feature"], True)
+        self.assertEqual(msg["properties"]["$active_feature_flags"], ["beta-feature", "alpha-feature"])
+
+        self.assertEqual(patch_decide.call_count, 1)
+        patch_decide.assert_called_with(
+            "random_key",
+            "https://us.i.posthog.com",
+            timeout=3,
+            distinct_id="distinct_id",
+            groups={},
+            person_properties=None,
+            group_properties=None,
+            disable_geoip=True,
+        )
+
+    @mock.patch("posthog.client.decide")
+    def test_basic_capture_with_feature_flags_and_disable_geoip_returns_correctly(self, patch_decide):
+        patch_decide.return_value = {
+            "featureFlags": {"beta-feature": "random-variant", "alpha-feature": True, "off-feature": False}
+        }
+
+        client = Client(
+            FAKE_TEST_API_KEY,
+            host="https://app.posthog.com",
+            on_error=self.set_fail,
+            personal_api_key=FAKE_TEST_API_KEY,
+            disable_geoip=True,
+            feature_flags_request_timeout_seconds=12,
+        )
+        success, msg = client.capture("distinct_id", "python test event", send_feature_flags=True, disable_geoip=False)
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertTrue("$geoip_disable" not in msg["properties"])
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertEqual(msg["properties"]["$feature/beta-feature"], "random-variant")
+        self.assertEqual(msg["properties"]["$feature/alpha-feature"], True)
+        self.assertEqual(msg["properties"]["$active_feature_flags"], ["beta-feature", "alpha-feature"])
+
+        self.assertEqual(patch_decide.call_count, 1)
+        patch_decide.assert_called_with(
+            "random_key",
+            "https://us.i.posthog.com",
+            timeout=12,
+            distinct_id="distinct_id",
+            groups={},
+            person_properties=None,
+            group_properties=None,
+            disable_geoip=False,
+        )
+
+    @mock.patch("posthog.client.decide")
+    def test_basic_capture_with_feature_flags_switched_off_doesnt_send_them(self, patch_decide):
+        patch_decide.return_value = {"featureFlags": {"beta-feature": "random-variant"}}
+
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, personal_api_key=FAKE_TEST_API_KEY)
+        success, msg = client.capture("distinct_id", "python test event", send_feature_flags=False)
+        client.flush()
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg["event"], "python test event")
+        self.assertTrue(isinstance(msg["timestamp"], str))
+        self.assertIsNone(msg.get("uuid"))
+        self.assertEqual(msg["distinct_id"], "distinct_id")
+        self.assertEqual(msg["properties"]["$lib"], "posthog-python")
+        self.assertEqual(msg["properties"]["$lib_version"], VERSION)
+        self.assertTrue("$feature/beta-feature" not in msg["properties"])
+        self.assertTrue("$active_feature_flags" not in msg["properties"])
+
+        self.assertEqual(patch_decide.call_count, 0)
+
    def test_stringifies_distinct_id(self):
        # A large number that loses precision in node:
        # node -e "console.log(157963456373623802 + 1)" > 157963456373623800
@@ -219,6 +709,7 @@ class TestClient(unittest.TestCase):
                "$group_set": {},
                "$lib": "posthog-python",
                "$lib_version": VERSION,
+                "$geoip_disable": True,
            },
        )
        self.assertTrue(isinstance(msg["timestamp"], str))
@@ -240,6 +731,7 @@ class TestClient(unittest.TestCase):
                "$group_set": {"trait": "value"},
                "$lib": "posthog-python",
                "$lib_version": VERSION,
+                "$geoip_disable": True,
            },
        )
        self.assertEqual(msg["timestamp"], "2014-09-03T00:00:00+00:00")
@@ -321,7 +813,7 @@ class TestClient(unittest.TestCase):
            self.assertFalse(consumer.is_alive())

    def test_synchronous(self):
-        client = Client(TEST_API_KEY, sync_mode=True)
+        client = Client(FAKE_TEST_API_KEY, sync_mode=True)

        success, message = client.identify("distinct_id")
        self.assertFalse(client.consumers)
@@ -329,7 +821,7 @@ class TestClient(unittest.TestCase):
        self.assertTrue(success)

    def test_overflow(self):
-        client = Client(TEST_API_KEY, max_queue_size=1)
+        client = Client(FAKE_TEST_API_KEY, max_queue_size=1)
        # Ensure consumer thread is no longer uploading
        client.join()

@@ -352,14 +844,14 @@ class TestClient(unittest.TestCase):
        Client("bad_key", debug=True)

    def test_gzip(self):
-        client = Client(TEST_API_KEY, on_error=self.fail, gzip=True)
+        client = Client(FAKE_TEST_API_KEY, on_error=self.fail, gzip=True)
        for _ in range(10):
            client.identify("distinct_id", {"trait": "value"})
        client.flush()
        self.assertFalse(self.failed)

    def test_user_defined_flush_at(self):
-        client = Client(TEST_API_KEY, on_error=self.fail, flush_at=10, flush_interval=3)
+        client = Client(FAKE_TEST_API_KEY, on_error=self.fail, flush_at=10, flush_interval=3)

        def mock_post_fn(*args, **kwargs):
            self.assertEqual(len(kwargs["batch"]), 10)
@@ -373,128 +865,135 @@ class TestClient(unittest.TestCase):
            self.assertEqual(mock_post.call_count, 2)

    def test_user_defined_timeout(self):
-        client = Client(TEST_API_KEY, timeout=10)
+        client = Client(FAKE_TEST_API_KEY, timeout=10)
        for consumer in client.consumers:
            self.assertEqual(consumer.timeout, 10)

    def test_default_timeout_15(self):
-        client = Client(TEST_API_KEY)
+        client = Client(FAKE_TEST_API_KEY)
        for consumer in client.consumers:
            self.assertEqual(consumer.timeout, 15)

-    @mock.patch("posthog.client.Poller")
-    @mock.patch("posthog.client.get")
-    def test_load_feature_flags(self, patch_get, patch_poll):
-        patch_get.return_value = {
-            "results": [
-                {"id": 1, "name": "Beta Feature", "key": "beta-feature", "active": True},
-                {"id": 2, "name": "Alpha Feature", "key": "alpha-feature", "active": False},
-            ]
+    def test_disabled(self):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disabled=True)
+        success, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+        self.assertFalse(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg, "disabled")
+
+    @mock.patch("posthog.client.decide")
+    def test_disabled_with_feature_flags(self, patch_decide):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disabled=True)
+
+        response = client.get_feature_flag("beta-feature", "12345")
+        self.assertIsNone(response)
+        patch_decide.assert_not_called()
+
+        response = client.feature_enabled("beta-feature", "12345")
+        self.assertIsNone(response)
+        patch_decide.assert_not_called()
+
+        response = client.get_all_flags("12345")
+        self.assertIsNone(response)
+        patch_decide.assert_not_called()
+
+        response = client.get_feature_flag_payload("key", "12345")
+        self.assertIsNone(response)
+        patch_decide.assert_not_called()
+
+        response = client.get_all_flags_and_payloads("12345")
+        self.assertEqual(response, {"featureFlags": None, "featureFlagPayloads": None})
+        patch_decide.assert_not_called()
+
+        # no capture calls
+        self.assertTrue(client.queue.empty())
+
+    def test_enabled_to_disabled(self):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disabled=False)
+        success, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+
+        self.assertTrue(success)
+        self.assertFalse(self.failed)
+        self.assertEqual(msg["event"], "python test event")
+
+        client.disabled = True
+        success, msg = client.capture("distinct_id", "python test event")
+        client.flush()
+        self.assertFalse(success)
+        self.assertFalse(self.failed)
+
+        self.assertEqual(msg, "disabled")
+
+    def test_disable_geoip_default_on_events(self):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disable_geoip=True)
+        _, capture_msg = client.capture("distinct_id", "python test event")
+        client.flush()
+        self.assertEqual(capture_msg["properties"]["$geoip_disable"], True)
+
+        _, identify_msg = client.identify("distinct_id", {"trait": "value"})
+        client.flush()
+        self.assertEqual(identify_msg["properties"]["$geoip_disable"], True)
+
+    def test_disable_geoip_override_on_events(self):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disable_geoip=False)
+        _, capture_msg = client.set("distinct_id", {"a": "b", "c": "d"}, disable_geoip=True)
+        client.flush()
+        self.assertEqual(capture_msg["properties"]["$geoip_disable"], True)
+
+        _, identify_msg = client.page("distinct_id", "http://a.com", {"trait": "value"}, disable_geoip=False)
+        client.flush()
+        self.assertEqual("$geoip_disable" not in identify_msg["properties"], True)
+
+    def test_disable_geoip_method_overrides_init_on_events(self):
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disable_geoip=True)
+        _, msg = client.capture("distinct_id", "python test event", disable_geoip=False)
+        client.flush()
+        self.assertTrue("$geoip_disable" not in msg["properties"])
+
+    @mock.patch("posthog.client.decide")
+    def test_disable_geoip_default_on_decide(self, patch_decide):
+        patch_decide.return_value = {
+            "featureFlags": {"beta-feature": "random-variant", "alpha-feature": True, "off-feature": False}
        }
-        client = Client(TEST_API_KEY, personal_api_key="test")
-        with freeze_time("2020-01-01T12:01:00.0000Z"):
-            client.load_feature_flags()
-        self.assertEqual(len(client.feature_flags), 1)
-        self.assertEqual(client.feature_flags[0]["key"], "beta-feature")
-        self.assertEqual(client._last_feature_flag_poll.isoformat(), "2020-01-01T12:01:00+00:00")
-        self.assertEqual(patch_poll.call_count, 1)
-
-    def test_load_feature_flags_wrong_key(self):
-        client = Client(TEST_API_KEY, personal_api_key=TEST_API_KEY)
-        with freeze_time("2020-01-01T12:01:00.0000Z"):
-            self.assertRaises(APIError, client.load_feature_flags)
-
-    @mock.patch("posthog.client.decide")
-    @mock.patch("posthog.client.get")
-    def test_feature_enabled_simple(self, patch_get, patch_decide):
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": True, "rollout_percentage": 100}
-        ]
-        self.assertTrue(client.feature_enabled("beta-feature", "distinct_id"))
-        self.assertEqual(patch_decide.call_count, 0)
-
-    @mock.patch("posthog.client.decide")
-    @mock.patch("posthog.client.get")
-    def test_feature_enabled_simple_is_false(self, patch_get, patch_decide):
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": True, "rollout_percentage": 0}
-        ]
-        self.assertFalse(client.feature_enabled("beta-feature", "distinct_id"))
-        self.assertEqual(patch_decide.call_count, 0)
-
-    @mock.patch("posthog.client.get")
-    def test_feature_enabled_simple_with_project_api_key(self, patch_get):
-        client = Client(project_api_key=TEST_API_KEY, on_error=self.set_fail)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": True, "rollout_percentage": 100}
-        ]
-        self.assertTrue(client.feature_enabled("beta-feature", "distinct_id"))
-
-    @mock.patch("posthog.client.decide")
-    def test_feature_enabled_request(self, patch_decide):
-        patch_decide.return_value = {"featureFlags": {"beta-feature": True}}
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": False, "rollout_percentage": 100}
-        ]
-        self.assertTrue(client.feature_enabled("beta-feature", "distinct_id"))
-
-    @mock.patch("posthog.client.decide")
-    def test_feature_enabled_request_multi_variate(self, patch_decide):
-        patch_decide.return_value = {"featureFlags": {"beta-feature": "variant-1"}}
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": False, "rollout_percentage": 100}
-        ]
-        self.assertEqual(client.feature_enabled("beta-feature", "distinct_id"), "variant-1")
-
-    @mock.patch("posthog.client.get")
-    def test_feature_enabled_simple_without_rollout_percentage(self, patch_get):
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [{"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": True}]
-        self.assertTrue(client.feature_enabled("beta-feature", "distinct_id"))
-
-    @mock.patch("posthog.client.get")
-    def test_feature_enabled_simple_with_none_rollout_percentage(self, patch_get):
-        client = Client(TEST_API_KEY)
-        client.feature_flags = [
-            {"id": 1, "name": "Beta Feature", "key": "beta-feature", "is_simple_flag": True, "rollout_percantage": None}
-        ]
-        self.assertTrue(client.feature_enabled("beta-feature", "distinct_id"))
-
-    @mock.patch("posthog.client.Poller")
-    @mock.patch("posthog.client.decide")
-    def test_feature_enabled_doesnt_exist(self, patch_decide, patch_poll):
-        patch_decide.return_value = {"featureFlags": {}}
-        client = Client(TEST_API_KEY, personal_api_key="test")
-        client.feature_flags = []
-
-        self.assertFalse(client.feature_enabled("doesnt-exist", "distinct_id"))
-        self.assertTrue(client.feature_enabled("doesnt-exist", "distinct_id", True))
-
-    @mock.patch("posthog.client.Poller")
-    @mock.patch("posthog.client.decide")
-    def test_personal_api_key_doesnt_exist(self, patch_decide, patch_poll):
-        client = Client(TEST_API_KEY)
-        client.feature_flags = []
-
-        patch_decide.return_value = {"featureFlags": {"feature-flag": True}}
-
-        self.assertTrue(client.feature_enabled("feature-flag", "distinct_id"))
-
-    @mock.patch("posthog.client.Poller")
-    @mock.patch("posthog.client.get")
-    def test_load_feature_flags_error(self, patch_get, patch_poll):
-        def raise_effect():
-            raise Exception("http exception")
-
-        patch_get.return_value.raiseError.side_effect = raise_effect
-        client = Client(TEST_API_KEY, personal_api_key="test")
-        client.feature_flags = []
-
-        self.assertFalse(client.feature_enabled("doesnt-exist", "distinct_id"))
+        client = Client(FAKE_TEST_API_KEY, on_error=self.set_fail, disable_geoip=False)
+        client.get_feature_flag("random_key", "some_id", disable_geoip=True)
+        patch_decide.assert_called_with(
+            "random_key",
+            "https://us.i.posthog.com",
+            timeout=3,
+            distinct_id="some_id",
+            groups={},
+            person_properties={"distinct_id": "some_id"},
+            group_properties={},
+            disable_geoip=True,
+        )
+        patch_decide.reset_mock()
+        client.feature_enabled("random_key", "feature_enabled_distinct_id", disable_geoip=True)
+        patch_decide.assert_called_with(
+            "random_key",
+            "https://us.i.posthog.com",
+            timeout=3,
+            distinct_id="feature_enabled_distinct_id",
+            groups={},
+            person_properties={"distinct_id": "feature_enabled_distinct_id"},
+            group_properties={},
+            disable_geoip=True,
+        )
+        patch_decide.reset_mock()
+        client.get_all_flags_and_payloads("all_flags_payloads_id")
+        patch_decide.assert_called_with(
+            "random_key",
+            "https://us.i.posthog.com",
+            timeout=3,
+            distinct_id="all_flags_payloads_id",
+            groups={},
+            person_properties={"distinct_id": "all_flags_payloads_id"},
+            group_properties={},
+            disable_geoip=False,
+        )

    @mock.patch("posthog.client.Poller")
    @mock.patch("posthog.client.get")
@@ -503,7 +1002,74 @@ class TestClient(unittest.TestCase):
            raise Exception("http exception")

        patch_get.return_value.raiseError.side_effect = raise_effect
-        client = Client(TEST_API_KEY, personal_api_key="test")
+        client = Client(FAKE_TEST_API_KEY, personal_api_key="test")
        client.feature_flags = [{"key": "example", "is_simple_flag": False}]

        self.assertFalse(client.feature_enabled("example", "distinct_id"))
+
+    @mock.patch("posthog.client.decide")
+    def test_default_properties_get_added_properly(self, patch_decide):
+        patch_decide.return_value = {
+            "featureFlags": {"beta-feature": "random-variant", "alpha-feature": True, "off-feature": False}
+        }
+        client = Client(FAKE_TEST_API_KEY, host="http://app2.posthog.com", on_error=self.set_fail, disable_geoip=False)
+        client.get_feature_flag(
+            "random_key",
+            "some_id",
+            groups={"company": "id:5", "instance": "app.posthog.com"},
+            person_properties={"x1": "y1"},
+            group_properties={"company": {"x": "y"}},
+        )
+        patch_decide.assert_called_with(
+            "random_key",
+            "http://app2.posthog.com",
+            timeout=3,
+            distinct_id="some_id",
+            groups={"company": "id:5", "instance": "app.posthog.com"},
+            person_properties={"distinct_id": "some_id", "x1": "y1"},
+            group_properties={
+                "company": {"$group_key": "id:5", "x": "y"},
+                "instance": {"$group_key": "app.posthog.com"},
+            },
+            disable_geoip=False,
+        )
+
+        patch_decide.reset_mock()
+        client.get_feature_flag(
+            "random_key",
+            "some_id",
+            groups={"company": "id:5", "instance": "app.posthog.com"},
+            person_properties={"distinct_id": "override"},
+            group_properties={
+                "company": {
+                    "$group_key": "group_override",
+                }
+            },
+        )
+        patch_decide.assert_called_with(
+            "random_key",
+            "http://app2.posthog.com",
+            timeout=3,
+            distinct_id="some_id",
+            groups={"company": "id:5", "instance": "app.posthog.com"},
+            person_properties={"distinct_id": "override"},
+            group_properties={
+                "company": {"$group_key": "group_override"},
+                "instance": {"$group_key": "app.posthog.com"},
+            },
+            disable_geoip=False,
+        )
+
+        patch_decide.reset_mock()
+        # test nones
+        client.get_all_flags_and_payloads("some_id", groups={}, person_properties=None, group_properties=None)
+        patch_decide.assert_called_with(
+            "random_key",
+            "http://app2.posthog.com",
+            timeout=3,
+            distinct_id="some_id",
+            groups={},
+            person_properties={"distinct_id": "some_id"},
+            group_properties={},
+            disable_geoip=False,
+        )
@@ -145,15 +145,20 @@ class TestConsumer(unittest.TestCase):
    def test_max_batch_size(self):
        q = Queue()
        consumer = Consumer(q, TEST_API_KEY, flush_at=100000, flush_interval=3)
-        track = {"type": "track", "event": "python event", "distinct_id": "distinct_id"}
+        properties = {}
+        for n in range(0, 500):
+            properties[str(n)] = "one_long_property_value_to_build_a_big_event"
+        track = {"type": "track", "event": "python event", "distinct_id": "distinct_id", "properties": properties}
        msg_size = len(json.dumps(track).encode())
-        # number of messages in a maximum-size batch
-        n_msgs = int(475000 / msg_size)
+        # Let's capture 8MB of data to trigger two batches
+        n_msgs = int(8_000_000 / msg_size)

        def mock_post_fn(_, data, **kwargs):
            res = mock.Mock()
            res.status_code = 200
-            self.assertTrue(len(data.encode()) < 500000, "batch size (%d) exceeds 500KB limit" % len(data.encode()))
+            request_size = len(data.encode())
+            # Batches close after the first message bringing it bigger than BATCH_SIZE_LIMIT, let's add 10% of margin
+            self.assertTrue(request_size < (5 * 1024 * 1024) * 1.1, "batch size (%d) higher than limit" % request_size)
            return res

        with mock.patch("posthog.request._session.post", side_effect=mock_post_fn) as mock_post:
@@ -0,0 +1,63 @@
+import subprocess
+import sys
+from textwrap import dedent
+
+import pytest
+
+
+def test_excepthook(tmpdir):
+    app = tmpdir.join("app.py")
+    app.write(
+        dedent(
+            """
+    from posthog import Posthog
+    posthog = Posthog('phc_x', host='https://eu.i.posthog.com', enable_exception_autocapture=True, debug=True, on_error=lambda e, batch: print('error handling batch: ', e, batch))
+
+    # frame_value = "LOL"
+
+    1/0
+    """
+        )
+    )
+
+    with pytest.raises(subprocess.CalledProcessError) as excinfo:
+        subprocess.check_output([sys.executable, str(app)], stderr=subprocess.STDOUT)
+
+    output = excinfo.value.output
+
+    assert b"ZeroDivisionError" in output
+    assert b"LOL" in output
+    assert b"DEBUG:posthog:data uploaded successfully" in output
+    assert (
+        b'"$exception_list": [{"mechanism": {"type": "generic", "handled": true}, "module": null, "type": "ZeroDivisionError", "value": "division by zero", "stacktrace": {"frames": [{"platform": "python", "filename": "app.py", "abs_path"'
+        in output
+    )
+
+
+def test_trying_to_use_django_integration(tmpdir):
+    app = tmpdir.join("app.py")
+    app.write(
+        dedent(
+            """
+    from posthog import Posthog, Integrations
+    posthog = Posthog('phc_x', host='https://eu.i.posthog.com', enable_exception_autocapture=True, exception_autocapture_integrations=[Integrations.Django], debug=True, on_error=lambda e, batch: print('error handling batch: ', e, batch))
+
+    # frame_value = "LOL"
+
+    1/0
+    """
+        )
+    )
+
+    with pytest.raises(subprocess.CalledProcessError) as excinfo:
+        subprocess.check_output([sys.executable, str(app)], stderr=subprocess.STDOUT)
+
+    output = excinfo.value.output
+
+    assert b"ZeroDivisionError" in output
+    assert b"LOL" in output
+    assert b"DEBUG:posthog:data uploaded successfully" in output
+    assert (
+        b'"$exception_list": [{"mechanism": {"type": "generic", "handled": true}, "module": null, "type": "ZeroDivisionError", "value": "division by zero", "stacktrace": {"frames": [{"platform": "python", "filename": "app.py", "abs_path"'
+        in output
+    )
@@ -1,40 +1,48 @@
 import unittest

-import posthog
+from posthog import Posthog


 class TestModule(unittest.TestCase):
+    posthog = None
+
+    def _assert_enqueue_result(self, result):
+        self.assertEqual(type(result[0]), bool)
+        self.assertEqual(type(result[1]), dict)
+
    def failed(self):
        self.failed = True

    def setUp(self):
        self.failed = False
-        posthog.api_key = "testsecret"
-        posthog.on_error = self.failed
+        self.posthog = Posthog("testsecret", host="http://localhost:8000", on_error=self.failed)

    def test_no_api_key(self):
-        posthog.api_key = None
-        self.assertRaises(Exception, posthog.capture)
+        self.posthog.api_key = None
+        self.assertRaises(Exception, self.posthog.capture)

    def test_no_host(self):
-        posthog.host = None
-        self.assertRaises(Exception, posthog.capture)
+        self.posthog.host = None
+        self.assertRaises(Exception, self.posthog.capture)

    def test_track(self):
-        posthog.capture("distinct_id", "python module event")
-        posthog.flush()
+        res = self.posthog.capture("distinct_id", "python module event")
+        self._assert_enqueue_result(res)
+        self.posthog.flush()

    def test_identify(self):
-        posthog.identify("distinct_id", {"email": "user@email.com"})
-        posthog.flush()
+        res = self.posthog.identify("distinct_id", {"email": "user@email.com"})
+        self._assert_enqueue_result(res)
+        self.posthog.flush()

    def test_alias(self):
-        posthog.alias("previousId", "distinct_id")
-        posthog.flush()
+        res = self.posthog.alias("previousId", "distinct_id")
+        self._assert_enqueue_result(res)
+        self.posthog.flush()

    def test_page(self):
-        posthog.page("distinct_id", "https://posthog.com/contact")
-        posthog.flush()
+        self.posthog.page("distinct_id", "https://posthog.com/contact")
+        self.posthog.flush()

    def test_flush(self):
-        posthog.flush()
+        self.posthog.flush()
@@ -2,9 +2,10 @@ import json
 import unittest
 from datetime import date, datetime

+import pytest
 import requests

-from posthog.request import DatetimeSerializer, batch_post
+from posthog.request import DatetimeSerializer, batch_post, determine_server_host
 from posthog.test.test_utils import TEST_API_KEY


@@ -42,3 +43,26 @@ class TestRequests(unittest.TestCase):
            batch_post(
                "key", batch=[{"distinct_id": "distinct_id", "event": "python event", "type": "track"}], timeout=0.0001
            )
+
+
+@pytest.mark.parametrize(
+    "host, expected",
+    [
+        ("https://t.posthog.com", "https://t.posthog.com"),
+        ("https://t.posthog.com/", "https://t.posthog.com/"),
+        ("t.posthog.com", "t.posthog.com"),
+        ("t.posthog.com/", "t.posthog.com/"),
+        ("https://us.posthog.com.rg.proxy.com", "https://us.posthog.com.rg.proxy.com"),
+        ("app.posthog.com", "app.posthog.com"),
+        ("eu.posthog.com", "eu.posthog.com"),
+        ("https://app.posthog.com", "https://us.i.posthog.com"),
+        ("https://eu.posthog.com", "https://eu.i.posthog.com"),
+        ("https://us.posthog.com", "https://us.i.posthog.com"),
+        ("https://app.posthog.com/", "https://us.i.posthog.com"),
+        ("https://eu.posthog.com/", "https://eu.i.posthog.com"),
+        ("https://us.posthog.com/", "https://us.i.posthog.com"),
+        (None, "https://us.i.posthog.com"),
+    ],
+)
+def test_routing_to_custom_host(host, expected):
+    assert determine_server_host(host) == expected
@@ -9,6 +9,7 @@ from dateutil.tz import tzutc
 from posthog import utils

 TEST_API_KEY = "kOOlRy2QlMY9jHZQv0bKz0FZyazBUoY8Arj0lFVNjs4"
+FAKE_TEST_API_KEY = "random_key"


 class TestUtils(unittest.TestCase):
@@ -79,3 +80,22 @@ class TestUtils(unittest.TestCase):
    def test_remove_slash(self):
        self.assertEqual("http://posthog.io", utils.remove_trailing_slash("http://posthog.io/"))
        self.assertEqual("http://posthog.io", utils.remove_trailing_slash("http://posthog.io"))
+
+
+class TestSizeLimitedDict(unittest.TestCase):
+    def test_size_limited_dict(self):
+        size = 10
+        values = utils.SizeLimitedDict(size, lambda _: -1)
+
+        for i in range(100):
+            values[i] = i
+
+            self.assertEqual(values[i], i)
+            self.assertEqual(len(values), i % size + 1)
+
+            if i % size == 0:
+                # old numbers should've been removed
+                self.assertIsNone(values.get(i - 1))
+                self.assertIsNone(values.get(i - 3))
+                self.assertIsNone(values.get(i - 5))
+                self.assertIsNone(values.get(i - 9))
@@ -1,6 +1,8 @@
 import logging
 import numbers
-from datetime import date, datetime
+import re
+from collections import defaultdict
+from datetime import date, datetime, timezone
 from decimal import Decimal
 from uuid import UUID

@@ -87,3 +89,29 @@ def _coerce_unicode(cmplx):
        log.warning("Error decoding: %s", item)
        return None
    return item
+
+
+def is_valid_regex(value) -> bool:
+    try:
+        re.compile(value)
+        return True
+    except re.error:
+        return False
+
+
+class SizeLimitedDict(defaultdict):
+    def __init__(self, max_size, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.max_size = max_size
+
+    def __setitem__(self, key, value):
+        if len(self) >= self.max_size:
+            self.clear()
+
+        super().__setitem__(key, value)
+
+
+def convert_to_datetime_aware(date_obj):
+    if date_obj.tzinfo is None:
+        date_obj = date_obj.replace(tzinfo=timezone.utc)
+    return date_obj
@@ -1,4 +1,4 @@
-VERSION = "1.4.8"
+VERSION = "3.7.3"

 if __name__ == "__main__":
-    print(VERSION, end="")
+    print(VERSION, end="")  # noqa: T201
@@ -13,6 +13,7 @@ Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
+
 from django.contrib import admin
 from django.urls import path

@@ -14,15 +14,17 @@ long_description = """
 PostHog is developer-friendly, self-hosted product analytics. posthog-python is the python package.
 """

-install_requires = ["requests>=2.7,<3.0", "six>=1.5", "monotonic>=1.5", "backoff>=1.10.0,<2.0.0", "python-dateutil>2.1"]
+install_requires = ["requests>=2.7,<3.0", "six>=1.5", "monotonic>=1.5", "backoff>=1.10.0", "python-dateutil>2.1"]

 extras_require = {
    "dev": [
        "black",
        "isort",
+        "flake8",
+        "flake8-print",
        "pre-commit",
    ],
-    "test": ["mock>=2.0.0", "freezegun==0.3.15", "pylint", "flake8", "coverage", "pytest"],
+    "test": ["mock>=2.0.0", "freezegun==0.3.15", "pylint", "flake8", "coverage", "pytest", "pytest-timeout", "django"],
    "sentry": ["sentry-sdk", "django"],
 }

@@ -35,7 +37,7 @@ setup(
    maintainer="PostHog",
    maintainer_email="hey@posthog.com",
    test_suite="posthog.test.all",
-    packages=["posthog", "posthog.test", "posthog.sentry"],
+    packages=["posthog", "posthog.test", "posthog.sentry", "posthog.exception_integrations"],
    license="MIT License",
    install_requires=install_requires,
    extras_require=extras_require,
@@ -14,7 +14,7 @@ long_description = """
 PostHog is developer-friendly, self-hosted product analytics. posthog-python is the python package.
 """

-install_requires = ["requests>=2.7,<3.0", "six>=1.5", "monotonic>=1.5", "backoff==1.6.0", "python-dateutil>2.1"]
+install_requires = ["requests>=2.7,<3.0", "six>=1.5", "monotonic>=1.5", "backoff>=1.10.0", "python-dateutil>2.1"]

 tests_require = ["mock>=2.0.0"]

@@ -27,7 +27,12 @@ setup(
    maintainer="PostHog",
    maintainer_email="hey@posthog.com",
    test_suite="posthoganalytics.test.all",
-    packages=["posthoganalytics", "posthoganalytics.test", "posthoganalytics.sentry"],
+    packages=[
+        "posthoganalytics",
+        "posthoganalytics.test",
+        "posthoganalytics.sentry",
+        "posthoganalytics.exception_integrations",
+    ],
    license="MIT License",
    install_requires=install_requires,
    tests_require=tests_require,
Author	SHA1	Message	Date
Dylan Martin GitHub David Newell	fb57de2e12	fix(flags): correctly emit feature flag events with the FF response on `get_feature_flag_payload` calls (#143 ) * this is the fix, needs tests * fix test * tests * yeah * please work * ran the formatter * code review feedback * how'd this get here * bump version add changelog * Update CHANGELOG.md Co-authored-by: David Newell <d.newell1@outlook.com> --------- Co-authored-by: David Newell <d.newell1@outlook.com>	2024-11-25 14:51:06 -05:00
Oliver Browne GitHub David Newell	db565bc0fd	fix(err): fix distinct_id, set personless and use a uuid (#144 ) Co-authored-by: David Newell <david@posthog.com>	2024-11-25 12:09:57 +00:00
David NewellandGitHub	8ae3f2b623	chore: add type to stack (#142 )	2024-11-19 12:46:52 +00:00
David NewellandGitHub	39f72a0070	chore: add lang to frames (#139 )	2024-10-24 16:18:02 +01:00
David NewellandGitHub	ee0305993d	feat: add super properties (#138 )	2024-10-03 17:07:47 +01:00
Silvano Cerza GitHub Neil Kakkar	28c4802d9b	Remove deprecated `datetime.utcnow()` in favour of `datetime.now(tz=tzutc())` (#124 ) Co-authored-by: Neil Kakkar <neilkakkar@gmail.com>	2024-09-24 11:09:15 +01:00
Neil KakkarandGitHub	67a343f242	fix(errors): Make sure project root exists to judge in app frames (#136 ) * fix(errors): Make sure project root exists to judge in app frames * prep release	2024-09-16 11:11:28 +01:00
Neil KakkarandGitHub	1521621d66	fix: Update Django integration for manual capture (#135 )	2024-09-10 09:27:47 +01:00
Neil KakkarandGitHub	39070babfb	feat(errors): Add manual exception capture (#134 ) * feat(errors): Add manual exception capture * prep release * use backwards compatible helper * add tests	2024-09-09 11:40:51 +01:00
Neil KakkarandGitHub	716eab0bc2	fix(setup): Make sure all packages are bundled (#133 ) * fix(setup): Make sure all packages are bundled * prep release * black	2024-09-03 08:13:10 +01:00
Neil KakkarandGitHub	1c0a61d6b5	fix(setup): Make sure all packages are bundled (#132 ) * fix(setup): Make sure all packages are bundled * prep release	2024-09-03 07:23:54 +01:00
Neil KakkarandGitHub	ffa35fa5cd	feat(errors): Add django integration and in app frames (#131 )	2024-09-03 06:10:36 +01:00
Neil KakkarandGitHub	24b7b918f7	feat(error-capture): Add basic exception autocapture (#128 )	2024-08-28 06:59:41 +01:00
Phani RajandGitHub	16cbd10f1b	bump version to 3.5.2 (#130 )	2024-08-21 11:58:02 -05:00
Phani RajandGitHub	b83d544931	fix(feature flags): Guard for None values when comparing person Properties (#129 ) * Guard for None values when comparing person Properties	2024-08-21 11:18:20 -05:00
Frank HamandandGitHub	72c0ed1935	Switch us-api.i hosts to just us.i (#119 ) We dropped the -api as it's a bit confusing (is capture really api?)	2024-08-14 08:41:10 +01:00
Neil KakkarandGitHub	5fdd6177ee	Create CODEOWNERS (#122 )	2024-05-02 18:02:13 +01:00
Neil KakkarandGitHub	fc1da7d589	fix(flags): Add a shorter configurable timeout for flag requests (#120 )	2024-03-04 14:25:11 +00:00
Brett HoernerandGitHub	cba6e86537	Bump to 3.4.2 (#118 )	2024-02-20 08:43:10 -07:00
Brett HoernerandGitHub	4e45255207	Add historical_migration option to toplevel Client (#117 )	2024-02-15 06:42:43 -07:00
Neil KakkarandGitHub	bc37351ab4	chore: Use ingestion hosts for event capture (#116 )	2024-02-13 11:19:21 +00:00
Neil KakkarandGitHub	a5e8b7d7fb	fix(routing): Update hosts to point to right ingestion host (#115 )	2024-02-05 12:14:14 +00:00
Neil KakkarandGitHub	efb0ccf3c7	chore(flags): Update type hints for newer mypy versions (#114 ) * chore(flags): Update type hints for newer mypy versions * black	2024-01-30 16:06:10 +00:00
Neil KakkarandGitHub	8554b51a48	fix(flags): Update relative date op names (#113 )	2024-01-26 15:52:46 +00:00
Henrique Joaquim GitHub Neil Kakkar	d0d962a8ba	Module functions to also return the same as its Client equivalent (#111 ) Co-authored-by: Neil Kakkar <neilkakkar@gmail.com>	2024-01-19 11:13:52 +00:00
Neil KakkarandGitHub	e348106094	fix(flags): Don't override existing props when adding flags (#110 )	2024-01-10 14:34:23 +00:00
Neil KakkarandGitHub	e60d52c199	feat(flags): Add local props and flags to all calls (#106 )	2024-01-09 11:30:10 +00:00
Neil KakkarandGitHub	a2c73d0536	feat(flags): Add relative date operators, fix numeric ops (#105 )	2024-01-09 11:22:18 +00:00
Xavier VelloandGitHub	33ba5d6843	feat: increase message and batch sizes (#108 )	2023-12-04 16:27:26 +01:00
Daniil OkhlopkovandGitHub	3515c40483	Update LICENSE (#104 )	2023-10-25 16:08:07 +01:00
Neil KakkarandGitHub	139258cacb	fix(flags): Ensure feature properties exist on feature flag called ev… (#101 ) * fix(flags): Ensure feature properties exist on feature flag called events * fix * make flake8 happy, will this bork?	2023-08-17 18:03:28 +01:00
Neil KakkarandGitHub	f75d924d4c	fix: disable behaviour for feature flags (#99 )	2023-04-21 13:10:02 +01:00
Li Yi Yu GitHub Neil Kakkar	617bb53501	Disable geoip for capture and decide calls by default (#98 ) Co-authored-by: Neil Kakkar <neilkakkar@gmail.com>	2023-04-17 12:06:57 +01:00
Eric DuongandGitHub	4aa3499527	version 2.5.0 (#97 )	2023-04-10 15:13:25 -04:00
Eric DuongandGitHub	de7def97e2	chore: change package to be an instantiable client (#96 ) * initial try * change init file to a class * remove commas * format * sort * restore original and add renamed client * format * move disabled * format * handle changing var for global instance * add test	2023-04-10 14:33:07 -04:00
Neil KakkarandGitHub	dfefd0a1b6	Fix analytics package dependencies (#95 )	2023-03-30 10:34:59 -04:00
Neil KakkarandGitHub	477a688016	Add CI to ensure no prints (#94 )	2023-03-17 15:22:59 +00:00
Neil KakkarandGitHub	fa474a0fe6	Release for print fix (#93 )	2023-03-17 12:41:16 +00:00
Jann KleenandGitHub	f8bc3f17eb	Remove print() call (#92 )	2023-03-17 12:37:01 +00:00
Neil KakkarandGitHub	07277d35e7	feat(flags): Enable local evaluation for all cohorts (#91 )	2023-03-16 10:47:29 +00:00
Eric DuongandGitHub	15d0716744	fix test (#90 )	2023-02-14 14:24:10 -05:00
Eric DuongandGitHub	b4103b3ae2	fix: add function for active variants (#89 ) * add function for active variants * format	2023-02-14 10:45:14 -05:00
Eric DuongandGitHub	1aeffa990f	add changelog entry and update versoin (#87 )	2023-02-07 10:47:26 -05:00
Eric DuongandGitHub	5ae7feb4e9	chore: Remove upper bound (#85 ) * remove upper bound * format	2023-02-07 10:36:26 -05:00
Eric Duong GitHub Neil Kakkar	6534afd8e3	fix: change api error to log (#83 ) * change api error to log * change implementation * sort * format * raise when debug is true * Update posthog/test/test_feature_flags.py * format --------- Co-authored-by: Neil Kakkar <neilkakkar@gmail.com>	2023-02-07 10:17:56 -05:00
Eric DuongandGitHub	a9d7bf3e0b	update version and changelog (#84 )	2023-01-31 13:05:04 -05:00
Eric DuongandGitHub	d7be253ef8	feat(feature-flags): JSON payload function (#81 ) * implementation with test * format * v=3 and get_all_payloads * format * fix bug * format * address comments * format * add tests * format * add resiliency * fix lookup * remove check * address comments * example.py * format * format	2023-01-31 12:47:32 -05:00
Luke Harries	592c0f362e	Revert "added regression tests" This reverts commit `c7fc5a83b4`.	2023-01-24 17:31:30 +00:00
Luke Harries	c7fc5a83b4	added regression tests	2023-01-24 17:11:37 +00:00
Neil KakkarandGitHub	ae8817b611	feat(flags): Add support for variant overrides (#77 )	2022-11-14 12:15:33 +00:00
Neil KakkarandGitHub	acad2b142e	fix: datetime comparison issues (#75 )	2022-09-15 15:26:38 +01:00
Neil KakkarandGitHub	cb62570e69	Update CHANGELOG.md	2022-09-14 14:22:28 +01:00
Eric DuongandGitHub	33645ecd3c	feat: add date comparison to local evaluation (#74 )	2022-09-14 13:53:44 +01:00
Neil KakkarandGitHub	81debcef27	fix: Remove defaults for feature flag calls (#72 )	2022-08-12 12:20:54 +01:00
Neil KakkarandGitHub	dac06bab18	fix(feature-flags): Add more options to make using library easier (#70 )	2022-08-04 13:53:20 +01:00
Neil KakkarandGitHub	2dc1298620	Bump version to 2.0.0 and add breaking changes changelog (#69 )	2022-08-02 12:10:32 +01:00
Neil KakkarandGitHub	2c6b675be7	feat(feature-flags): Enable local evaluation of flags (#68 )	2022-07-29 14:10:51 +01:00
Li Yi Yu GitHub Neil Kakkar	3a6fd07951	Add get feature flag method (#67 ) * get feature flag method * remove groups param from method * use personal api key * add groups * add capture * black reformat * black? * Update posthog/client.py Co-authored-by: Neil Kakkar <neilkakkar@gmail.com> * add to init * formatting Co-authored-by: Neil Kakkar <neilkakkar@gmail.com>	2022-06-30 11:48:53 -04:00
Neil KakkarandGitHub	de0ccd29d3	bump version to 1.4.9 (#66 )	2022-06-13 12:18:50 +01:00
Neil Kakkar GitHub Utku Zihnioglu	addd2e3340	Have an option to send feature variants with the .capture(...) calls (#65 ) Co-authored-by: Utku Zihnioglu <utku@webshare.io>	2022-06-13 12:13:35 +01:00