[3.9] bpo-44630: Fix assertion errors in csv module (GH-27127)#27130
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miss-islington merged 1 commit intopython:3.9from Jul 13, 2021
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[3.9] bpo-44630: Fix assertion errors in csv module (GH-27127)#27130miss-islington merged 1 commit intopython:3.9from
miss-islington merged 1 commit intopython:3.9from
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Fix incorrect handling of exceptions when interpreting dialect objects in the csv module. Not clearing exceptions between calls to PyObject_GetAttrString() causes assertion failures in pydebug mode (or with assertions enabled). Add a minimal test that would've caught this (passing None as dialect, or any object that isn't a csv.Dialect subclass, which the csv module allows and caters to, even though it is not documented.) In pydebug mode, the test triggers the assertion failure in the old code. Contributed-By: T. Wouters [Google] (cherry picked from commit 0093876) Co-authored-by: T. Wouters <[email protected]>
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Fix incorrect handling of exceptions when interpreting dialect objects in
the csv module. Not clearing exceptions between calls to
PyObject_GetAttrString() causes assertion failures in pydebug mode (or with
assertions enabled).
Add a minimal test that would've caught this (passing None as dialect, or
any object that isn't a csv.Dialect subclass, which the csv module allows
and caters to, even though it is not documented.) In pydebug mode, the test
triggers the assertion failure in the old code.
Contributed-By: T. Wouters [Google]
(cherry picked from commit 0093876)
Co-authored-by: T. Wouters [email protected]
https://bugs.python.org/issue44630
Automerge-Triggered-By: GH:gpshead