[Patches] [ python-Patches-418615 ] regular expression bug in pipes.py.
noreply@sourceforge.net
noreply@sourceforge.net
Tue, 24 Apr 2001 20:46:26 -0700
Patches item #418615, was updated on 2001-04-24 11:50
You can respond by visiting:
http://sourceforge.net/tracker/?func=detail&atid=305470&aid=418615&group_id=5470
Category: None
Group: None
Status: Closed
Resolution: Fixed
Priority: 5
Submitted By: Jeffery D. Collins (tokeneater)
Assigned to: Tim Peters (tim_one)
Summary: regular expression bug in pipes.py.
Initial Comment:
I tried running the test() function in pipes.py, but the following exception was raised:
>>> import pipes
>>> t = pipes.Template()
>>> t.append('x $IN $OUT', 'ff')
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/local/lib/python2.1/pipes.py", line 127, in append
raise ValueError, ValueError: Template.append: missing $IN in cmd
>
After some experimenting, I discovered that the regular expression argument to re.search() contains the character '\b', which is interpreted by the string object as a backspace. Those strings have now been changed to raw strings to avoid this problem.
I suppose that this module is not widely used. This problem appears in versions as far back as 1.5.2.
----------------------------------------------------------------------
>Comment By: Tim Peters (tim_one)
Date: 2001-04-24 20:46
Message:
Logged In: YES
user_id=31435
Oops! I didn't notice your patch attachment -- luckily, we
made the same changes on the same lines.
----------------------------------------------------------------------
Comment By: Tim Peters (tim_one)
Date: 2001-04-24 20:43
Message:
Logged In: YES
user_id=31435
Thanks, Jeffery! I found 4 calls of this form to re.search
(), and they are indeed clearly wrong. Repaired as you
suggested, in
Lib/pipes.py; new revision: 1.9
----------------------------------------------------------------------
You can respond by visiting:
http://sourceforge.net/tracker/?func=detail&atid=305470&aid=418615&group_id=5470