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Diffstat (limited to 'Doc/library/warnings.rst')
| -rw-r--r-- | Doc/library/warnings.rst | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Doc/library/warnings.rst b/Doc/library/warnings.rst index dbd563e..94cbb56 100644 --- a/Doc/library/warnings.rst +++ b/Doc/library/warnings.rst @@ -152,6 +152,25 @@ interpreter command line. The interpreter saves the arguments for all are ignored, after printing a message to ``sys.stderr``). +Default Warning Filters +~~~~~~~~~~~~~~~~~~~~~~~ + +By default, Python installs several warning filters, which can be overridden by +the command-line options passed to :option:`-W` and calls to +:func:`filterwarnings`. + +* :exc:`DeprecationWarning` and :exc:`PendingDeprecationWarning`, and + :exc:`ImportWarning` are ignored. + +* :exc:`BytesWarning` is ignored unless the :option:`-b` option is given once or + twice; in this case this warning is either printed (``-b``) or turned into an + exception (``-bb`). + +.. versionchanged:: 3.2 + :exc:`DeprecationWarning` is now ignored by default in addition to + :exc:`PendingDeprecationWarning`. + + .. _warning-suppress: Temporarily Suppressing Warnings |