Patches item #1668100, was opened at 2007-02-24 16:20
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Category: Modules
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jerry Seutter (jseutter)
Assigned to: Nobody/Anonymous (nobody)
Summary: urllib2.urlopen() raises OSError instead of URLError

Initial Comment:
See bug 1591774.  

The base problem is that when passing a file:// url into urllib2.urlopen() for 
a file that doesn't exist, the os.stat() call fails with an OSError exception 
which is not caught.  The documentation for urllib2 states that urlopen() 
raises a URLError upon error.

This bug can also be triggered when fetching a http:// url.  A misconfigured 
webserver can cause urllib2.urlopen to use the FileHandler (see bug report).

This patch catches OSError in the FileHandler class and raises it as a 
URLError.  Unit test included.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=305470&aid=1668100&group_id=5470
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