[Python-Dev] Pronouncement needed in issue9675

Nick Coghlan ncoghlan at gmail.com
Wed Sep 29 14:04:24 CEST 2010

On Wed, Sep 29, 2010 at 9:03 AM, Jesus Cea <jcea at jcea.es> wrote:
> About converting the deprecation warning to a py3k warning... Would a
> py3k warning be converted to an error when python is invoked as "-We"?.
> If that is the case, we are in the same situation.

To unpack Guido's response slightly, Py3k specific deprecation
warnings are only triggered if you pass the "-3" flag on the command
line. So "-We" won't cause them to throw an exception, but "-We -3"

(Python 2.6.5, started with "-We")
>>> warnings.warnpy3k("Test")
>>> sys.py3kwarning = True
>>> warnings.warnpy3k("Test")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.6/warnings.py", line 22, in warnpy3k
    warn(message, category, stacklevel+1)
DeprecationWarning: Test


Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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