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DeprecationWarning is now silent by default.

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This was originally suggested by Guido, discussed on the stdlib-sig mailing
list, and given the OK by Guido directly to me. What this change essentially
means is that Python has taken a policy of silencing warnings that are only
of interest to developers by default. This should prevent users from seeing
warnings which are triggered by an application being run against a new
interpreter before the app developer has a chance to update their code.

Closes issue #7319. Thanks to Antoine Pitrou, Ezio Melotti, and Brian Curtin
for helping with the issue.
This commit is contained in:
Brett Cannon 2010-01-10 02:56:19 +00:00
parent 3ad57e2625
commit 6fdd3dcb6a
6 changed files with 65 additions and 31 deletions
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4
Lib/warnings.py
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@ -383,8 +383,8 @@ except ImportError:
# Module initialization
_processoptions(sys.warnoptions)
if not _warnings_defaults:
simplefilter("ignore", category=PendingDeprecationWarning, append=1)
simplefilter("ignore", category=ImportWarning, append=1)
for cls in (DeprecationWarning, PendingDeprecationWarning, ImportWarning):
simplefilter("ignore", category=cls, append=True)
bytes_warning = sys.flags.bytes_warning
if bytes_warning > 1:
bytes_action = "error"