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bpo-31033: Make traceback for cancelled asyncio tasks more useful - #19951

Merged

cjerdonek merged 10 commits into

python:masterfrom

cjerdonek:fix-issue-31033

May 18, 2020

Merged

bpo-31033: Make traceback for cancelled asyncio tasks more useful#19951
cjerdonek merged 10 commits into
python:masterfrom
cjerdonek:fix-issue-31033

Commits on May 16, 2020
- Add _PyErr_ClearExcState() helper to pycore_pyerrors.h.
  cjerdonek
  committed
  4e4be85
- Add a new _PyErr_ChainStackItem() to pycore_pyerrors.h.
  cjerdonek
  committed
  7b4d297
- Add failing test.
  cjerdonek
  committed
  3216489
- bpo-31033: improve the traceback for cancelled asyncio tasks
  cjerdonek
  committed
  2a4ff60
- Add the pure Python implementation.
  cjerdonek
  committed
  b30364c
- Also address Future.exception() (both C and pure Python).
  cjerdonek
  committed
  0bb6882
- Don't repeat the cancellation message more than once.
  cjerdonek
  committed
  e4cfc90
- Set self._cancelled_exc to None in _make_cancelled_error().
  cjerdonek
  committed
  4646d1a
- Improve docstrings.
  cjerdonek
  committed
  de563c6
Commits on May 18, 2020
- Use CancelledError() instead of CancelledError('').
  cjerdonek
  committed
  9f901e5