[Patches] [ python-Patches-418613 ] regular expression bug in pipes.py
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Tue, 24 Apr 2001 11:47:22 -0700
Patches item #418613, was updated on 2001-04-24 11:47
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Category: library
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Jeffery D. Collins (tokeneater)
Assigned to: Nobody/Anonymous (nobody)
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.
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