[issue18050] _sre.MAXREPEAT not defined in 2.7.3

2013-05-24 Thread Samuel John

New submission from Samuel John:

As also discussed at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=704084 
and https://github.com/mxcl/homebrew/pull/19300, Python 2.7.4 and 2.7.5 seem to 
have added an `from _sre import MAXREPEAT` to the sre_compile.py, sre_parse.py 
and sre_constants.py modules.

But python 2.7.3 (and older?) don't have the built in MAXREPEAT in _sre. Some 
virtualenvs have to be updated (which is easy) but some Software (such as vim, 
shipped with OS X 10.8.3) is statically linked to an older python 2.7.2 (I 
guess) but somehow picks up my newly built python 2.7.5 and attempts to load 
it's site.py. (Weechat also reported to being affected)

I think this is more a bug of vim/weechat etc. but we at homebrew have to do 
some hacky fix, because Apple is not going to update vim very soon, and so 
having a newer python in path breaks system stuff.

So I am fine if you close this here again. But at least we have a reference or 
perhaps you guys have a better idea how to work-around.

For homebrew, I propose a monkey-patch in re.py to the _sre module if it does 
not have a MAXREPEAT.


   try:
   from _sre import MAXREPEAT
   except ImportError:
   import _sre
   _sre.MAXREPEAT = 65535 # this monkey-patches all other places of from 
_sre import MAXREPEAT

--
components: Extension Modules, Regular Expressions
messages: 189924
nosy: ezio.melotti, mrabarnett, samueljohn
priority: normal
severity: normal
status: open
title: _sre.MAXREPEAT not defined in 2.7.3
type: crash
versions: Python 2.7

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[issue18050] _sre.MAXREPEAT not defined in 2.7.3

2013-05-24 Thread Alex Burka

Changes by Alex Burka durk...@gmail.com:


--
nosy: +Alex.Burka

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[issue18050] _sre.MAXREPEAT not defined in 2.7.3

2013-05-24 Thread Ned Deily

Changes by Ned Deily n...@acm.org:


--
nosy: +ned.deily

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