How big is python24.dll?

Thomas Heller theller at
Tue Jul 13 10:20:18 CEST 2004

David Fraser <davidf at> writes:

> Martin v. Löwis wrote:
>> Delaney, Timothy C (Timothy) wrote:
>>> Ouch. Did changing to .Net 2003 add that much overhead? Do we know
>>> what it would be with VC6?

>> No, and no. python24.dll incorporates many extension modules which
>> were separate .pyd files before. In particular, it contains all .pyd
>> files which don't require additional libraries (DLLs or external
>> libraries).  A number of new extension modules were added for 2.4
>> also, which got incorporated into python24.dll.

>> If you want to know the precise numbers, create a list of DLLs for
>> Python 2.3, and a similar list for Python 2.4, and see what files
>> went away. Also, compare the list of builtin modules to find out what
>> modules have been added since 2.3.

>> If this kind of combination has any effect on the size, it rather
>> causes to safe space than to waste it: that way, Python ships with
>> less DLLs, which means fewer files, and less overhead for DLL data
>> structures.
> It may save space for the standard Python build. But it will make it
> harder to save space on py2exe or frozen Python programs for example...

IIRC, Martin did this change because I requested it, with py2exe in

If you really want the smallest file size in the py2exe builds, you may
as well compile your own Python.dll, including only those modules as
buildins which you really need.


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