[Python-bugs-list] [ python-Bugs-764548 ] SRE doesn't use isinstance
SourceForge.net
noreply@sourceforge.net
Wed, 02 Jul 2003 07:54:09 -0700
Bugs item #764548, was opened at 2003-07-02 14:20
Message generated for change (Comment added) made by jvr
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=764548&group_id=5470
Category: Regular Expressions
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Ronald Oussoren (ronaldoussoren)
Assigned to: Fredrik Lundh (effbot)
Summary: SRE doesn't use isinstance
Initial Comment:
The following code fails with a TypeError:
#--------------------------------
import re
class MyUnicode(unicode):
pass
val = MyUnicode("foobar")
r = re.compile(val)
#--------------------------------
This is caused by a check in sre.py: it checks if the
type of the pattern is str or unicode, instead of
testing if the value is an instance of those types.
This is not a completely theoretical problem: PyObjC
uses a subclass of unicode to represent Objective-C
strings.
----------------------------------------------------------------------
>Comment By: Just van Rossum (jvr)
Date: 2003-07-02 16:54
Message:
Logged In: YES
user_id=92689
Here's a patch that should fix the problem, while remaining
compatible with 1.5.2. Fredrik, please assign to me if you think
the patch is ok. Preferably before 2.3 final is out ;-)
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=764548&group_id=5470