Don't raise a new CancelledError if the future was cancelled #1056
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elprans
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`wait_for` has been a mess with respect to cancellations consistently in `asyncio`. Hopefully the approach taken in Python 3.12 solves the issues, so adopt that instead of trying to "fix" `wait_for` with wrappers on older Pythons. Use `async_timeout` as a polyfill on pre-3.11 Python. Closes: #1056 Closes: #1052 Fixes: #955
elprans
added a commit
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Oct 9, 2023
`wait_for` has been a mess with respect to cancellations consistently in `asyncio`. Hopefully the approach taken in Python 3.12 solves the issues, so adopt that instead of trying to "fix" `wait_for` with wrappers on older Pythons. Use `async_timeout` as a polyfill on pre-3.11 Python. Closes: #1056 Closes: #1052 Fixes: #955
elprans
added a commit
that referenced
this pull request
Oct 9, 2023
`wait_for` has been a mess with respect to cancellations consistently in `asyncio`. Hopefully the approach taken in Python 3.12 solves the issues, so adopt that instead of trying to "fix" `wait_for` with wrappers on older Pythons. Use `async_timeout` as a polyfill on pre-3.11 Python. Closes: #1056 Closes: #1052 Fixes: #955
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This way, the original cancel message, if any, is preserved. This fixes compatibility with AnyIO 4.0.0rc1 which relies on said cancel messages to determine whether it should swallow a cancellation exception or not.