** Changed in: python
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/937825
Title:
change in urlopen behavior
Status in Python:
Fix Released
Status in python2.7 package in Ubuntu:
Confirmed
Bug description:
The fix for http://bugs.python.org/issue6631 that came in python2.7
2.7.2-13ubuntu5 may cause problems for people. Eg, in 2.7.2-13ubuntu4 this
would work:
import urllib
url = "./foo.txt"
urllib.urlopen(url)
In 2.7.2-13ubuntu5 this code causes the following traceback:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/urllib.py", line 86, in urlopen
return opener.open(url)
File "/usr/lib/python2.7/urllib.py", line 207, in open
return getattr(self, name)(url)
File "/usr/lib/python2.7/urllib.py", line 462, in open_file
return self.open_local_file(url)
File "/usr/lib/python2.7/urllib.py", line 488, in open_local_file
raise ValueError("local file url may start with / or file:. Unknown url
of type: %s" % url)
ValueError: local file url may start with / or file:. Unknown url of type:
./foo.txt
While I have worked around it in the Ubuntu CVE tracker and this is
not a blocker for my team, filing this bug as it may cause problems
for others.
The workaround is simply to strip the './' off the front. Eg, a naive fix for
the above might be:
import urllib
url = "./foo.txt"
if url.startswith('./'):
url = url[2:]
urllib.urlopen(url)
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