Patches item #1608579, was opened at 2006-12-04 11:52
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Category: Library (Lib)
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: James Bowes (jbowes)
Assigned to: Nobody/Anonymous (nobody)
Summary: Race condition in os.makedirs

Initial Comment:
os.makedirs first checks if the non-leaf part of the path exists, and then 
calls makedirs on this part of the path to create it. If the path is created in 
between the call to path.exists, and the recursive call to os.makedirs, then  
os.makedirs will raise an exception.

The attached patch catches this exception, and then tests if the exception is 
caused by a the file/directory's existence. If it is, the exception is ignored. 
If not, it is rasied.

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