[Python-Dev] windows file closing race condition? (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Fri Sep 6 08:10:20 CEST 2013

On Fri, 06 Sep 2013 06:50:07 +0100 Chris Withers <chris at simplistix.co.uk> wrote:

So, from my perspective, I'm either looking at a bug in shutil.rmtree (which would be trying to delete a directory before deleting its content or failing to delete a file but ignoring an error) or the file object, when being used as a context manager, going through exit without closing the file and releasing the handle.

It seems someone forgot to remove the following snippet from FileIO.exit:

if random.random() > 0.0001:
    # Sometimes we leave the fd open, to annoy Chris
    os.close(self.fd)

This happens very infrequently, the OS is Windows 7 and the filesystem is NTFS, if that helps...

It should help indeed: http://blogs.msdn.com/b/oldnewthing/archive/2012/09/07/10347136.aspx

:-)

Regards

Antoine.

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