feat: Preserve metadata on wrapped coroutines

[alexander-alderman-webb]

Description

Copy metadata when wrapping coroutines in the patched asyncio task factory. Uses the functools.update_wrapper() function that is also used internally by functools.wraps(). Unlike when wrapping functions, less metadata is available on coroutines, so _wrap_coroutine() is equivalent to functools.wraps() with fewer attributes copied.

CPython copies __name__ and __qualname__ from function to coroutine: https://github.com/python/cpython/blob/a8733cbc7328dbeeed50e82ef13abb197d511c46/Objects/genobject.c#L1410.

As functools.update_wrapper() checks for the existence of properties first, copying metadata will not result in an AttributeError if metadata is not available. See the docs https://docs.python.org/3/library/functools.html#functools.update_wrapper

A small script to generate a task destroyed error.

importasyncioimportsentry_sdkfromsentry_sdk.integrations.asyncioimportAsyncioIntegrationDSN="..."asyncdefworker(): awaitasyncio.sleep(10) asyncdeftask(): sentry_sdk.init( dsn=DSN, integrations=[AsyncioIntegration()], debug=True, ) asyncio.create_task(worker()) if__name__=="__main__": loop=asyncio.new_event_loop() asyncio.set_event_loop(loop) loop.run_until_complete(task()) loop.close()

Issues

The SDK no longer overwrites coroutine metadata included in destroyed errors as reported in #5072.

Reminders

• Please add tests to validate your changes, and lint your code using tox -e linters.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.97%. Comparing base (9e14920) to head (1111a21).
⚠️ Report is 28 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@ Coverage Diff @@## master #5105 +/- ## ========================================== + Coverage 83.95% 83.97% +0.01%  ========================================== Files 180 180 Lines 18010 18182 +172 Branches 3203 3231 +28 ========================================== + Hits 15120 15268 +148 - Misses 1915 1923 +8 - Partials 975 991 +16 

Files with missing lines	Coverage Δ
sentry_sdk/integrations/asyncio.py	87.30% <100.00%> (+0.86%)	⬆️

... and 19 files with indirect coverage changes