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Showing content from http://mail.python.org/pipermail/python-bugs-list/2001-December/009059.html below:

[Python-bugs-list] [ python-Bugs-493252 ] maximum recursion limit exceeded in matc

[Python-bugs-list] [ python-Bugs-493252 ] maximum recursion limit exceeded in matc [Python-bugs-list] [ python-Bugs-493252 ] maximum recursion limit exceeded in matcnoreply@sourceforge.net noreply@sourceforge.net
Fri, 14 Dec 2001 05:53:04 -0800
Bugs item #493252, was opened at 2001-12-14 02:54
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=493252&group_id=5470

>Category: Regular Expressions
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: P. de Jong (peterdejong)
Assigned to: Nobody/Anonymous (nobody)
Summary: maximum recursion limit exceeded in matc

Initial Comment:
RuntimeError: maximum recursion limit exceeded
in match, while trying to match a string of 16384
bytes. (Python 2.0)

The error does not occur after eliminating some 100
characters from the string.

The error does not occur in Python 1.5.2. So I cannot
upgrade.

Peter de Jong

----------------------------------------------------------------------

>Comment By: Guido van Rossum (gvanrossum)
Date: 2001-12-14 05:53

Message:
Logged In: YES 
user_id=6380

Hi Peter!

This usually happens when the pattern contains * or + in a
way that causes more backtracking than one would naively
expect. Can you show us the pattern? There's usually an easy
way to rewrite the pattern so that it won't overflow -- and
it will be faster too...

BTW I would upgrade to Python 2.1.1 -- that's the most
stable release to date.

----------------------------------------------------------------------

You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=493252&group_id=5470



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