[Python-bugs-list] [ python-Bugs-763023 ] difflib.py: line 528 in ratio() zero division not caught
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Sun, 29 Jun 2003 23:24:06 -0700
Bugs item #763023, was opened at 2003-06-30 06:24
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Category: Python Library
Group: Python 2.2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Matthias Klose (doko)
Assigned to: Nobody/Anonymous (nobody)
Summary: difflib.py: line 528 in ratio() zero division not caught
Initial Comment:
2.2.3 and 2.3b1:
>>> from difflib import *
>>> s = SequenceMatcher(None, [], [])
>>> s.ratio()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
File "/usr/lib/python2.2/difflib.py", line 528, in
ratio
return 2.0 * matches / (len(self.a) + len(self.b))
ZeroDivisionError: float division
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