Martin v. Löwis <mar...@v.loewis.de> added the comment:

> I'm afraid that the problem doesn't lie in the unlink: DeleteFile
> succeeds. The problem is that the file is only marked for delete
> until such time as the last SHARE_DELETE handle on it is closed.

Then we shouldn't use DeleteFile in the first place to delete the file,
but instead CreateFile, with DELETE access (and FILE_SHARE_DELETE
sharing). If that fails, we need to move the file to the bin
(see unlink_nt for details).

> Making os.unlink on Windows more robust may be a good
> idea, but it's not going to help this issue. See my test-case.py
> on an earlier message for reproduction:

It certainly will help this case also. It would detect that the file is
still open, and move it into the trash bin.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7443>
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