[issue32088] Display DeprecationWarning, PendingDeprecationWarning and ImportWarning in debug mode
STINNER Victor
report at bugs.python.org
Mon Nov 20 10:00:44 EST 2017
STINNER Victor <victor.stinner at gmail.com> added the comment:
Warnings filters in debug mode.
Reference (current code):
$ ./python -c 'import warnings, pprint; pprint.pprint(warnings.filters)'
[('ignore', None, <class 'DeprecationWarning'>, None, 0),
('ignore', None, <class 'PendingDeprecationWarning'>, None, 0),
('ignore', None, <class 'ImportWarning'>, None, 0),
('ignore', None, <class 'BytesWarning'>, None, 0),
('always', None, <class 'ResourceWarning'>, None, 0)]
With my PR 4474:
$ ./python -c 'import warnings, pprint; pprint.pprint(warnings.filters)'
[('ignore', None, <class 'BytesWarning'>, None, 0),
('always', None, <class 'ResourceWarning'>, None, 0)]
BytesWarning is not modified by my PR since this specific warning is controlled by the -b option. Example with my PR.
-b option, ignore => default:
$ ./python -b -c 'import warnings, pprint; pprint.pprint(warnings.filters)'
[('default', None, <class 'BytesWarning'>, None, 0),
('always', None, <class 'ResourceWarning'>, None, 0)]
-bb option, ignore => error:
$ ./python -bb -c 'import warnings, pprint; pprint.pprint(warnings.filters)'
[('error', None, <class 'BytesWarning'>, None, 0),
('always', None, <class 'ResourceWarning'>, None, 0)]
Note: While writing this comment, I also found a bug in the new developer mode (-X dev): bpo-32089.
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