[Distutils] Importable wheels using distlib/distil

Thomas Heller theller at ctypes.org
Thu Mar 28 17:59:45 CET 2013

Am 28.03.2013 17:42, schrieb Paul Moore:
> On 28 March 2013 16:02, Vinay Sajip <vinay_sajip at yahoo.co.uk> wrote:
>> Return this directory. Note that the caller is responsible for
>>          deleting this directory and its contents, which might not be
>>          possible - e.g. in Windows, if a shared library has been
>>          imported and is linked to the running Python process, there will be
>>          an open handle to the shared library which will prevent its deletion.
>>          """
> That's the big issue I have with *any* approach like this. It's
> entirely possible that the directory cannot be deleted, and as a
> result the user ends up with the problem of managing clutter caused by
> this mechanism. Even if the directory is in %TEMP% the user still has
> the issue of clearing up. Consider a buildslave that continually runs
> tests - temp directory clutter is a definite issue in a situation like
> that.

I made an experiment some time ago:  It is possible to delete shared
libs containing extension modules imported by Python if the Python
process (after Py_Finalize()) calls FreeLibrary(hmod) in a loop for 
every extension until FreeLibrary returns zero; then the shared lib file 
can be deleted.


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