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Title: bpo-31033: Make traceback for cancelled asyncio tasks more useful by cjerdonek · Pull Request #19951 · python/cpython · GitHub

Open Graph Title: bpo-31033: Make traceback for cancelled asyncio tasks more useful by cjerdonek · Pull Request #19951 · python/cpython

X Title: bpo-31033: Make traceback for cancelled asyncio tasks more useful by cjerdonek · Pull Request #19951 · python/cpython

Description: When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one," which wasn't too useful. https://bugs.python.org/issue31033

Open Graph Description: When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one," which wasn't too usefu...

X Description: When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one," which wasn&#39...

Opengraph URL: https://github.com/python/cpython/pull/19951

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4e4be85 Add _PyErr_ClearExcState() helper to pycore_pyerrors.h. cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/4e4be857caa22ad54980ffa359f2e9f52069f132
7b4d297 Add a new _PyErr_ChainStackItem() to pycore_pyerrors.h. cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/7b4d2971840fe7e836c41e2bbeccfebb0062bb0f
3216489 Add failing test. cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/3216489e8b45202adff57c7e8d6b9ff137fd5a8a
2a4ff60 bpo-31033: improve the traceback for cancelled asyncio tasks cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/2a4ff60aea4a0cd5a61f34da636218bfa1f1f9f0
b30364c Add the pure Python implementation. cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/b30364c8d94cc51bbe80235cf5303e6ffa0a7bef
0bb6882 Also address Future.exception() (both C and pure Python). cjerdonek May 6, 2020 https://github.com/python/cpython/pull/19951/commits/0bb68822709073603b877572209453e1c30e9614
e4cfc90 Don't repeat the cancellation message more than once. cjerdonek May 16, 2020 https://github.com/python/cpython/pull/19951/commits/e4cfc9020e1d3cafb44e39e262017d55fec79120
4646d1a Set self._cancelled_exc to None in _make_cancelled_error(). cjerdonek May 16, 2020 https://github.com/python/cpython/pull/19951/commits/4646d1a0aba18609fb6714c1a05d70d8146311f7
de563c6 Improve docstrings. cjerdonek May 16, 2020 https://github.com/python/cpython/pull/19951/commits/de563c6027f3322ab4b2e1b64d73efe5a2831941
9f901e5 Use CancelledError() instead of CancelledError(''). cjerdonek May 18, 2020 https://github.com/python/cpython/pull/19951/commits/9f901e586330c488e9cc4af8114185a692fbd287
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