[issue26629] Need an ability to build standard DLLs with distutils
New submission from Buraddin Ibn-Karlo:
I want to make a a dynamic library to run its function with ctypes.
Also I want to build the library from sources with distutils (the C++ sources are distributed with my Python code).
But alas! Our distutils fails, if the library doesn't have initialization function (something like init_<module_name>). Even if the module does not need any initialization.
I did a quick and dirty solution: added a dummy function: void init_<module_name>(){}
It somehow works, but I don't think that it is a good idea.
Cannot you add the possibility to tell distutils, that this extention module is just a simple DLL, that will be used via ctypes (or somehow else) and it does not need any extra init script?
Also, cannot you add an extra section to ctypes documentation? With a description how to build such extensions via distutils?
---------- assignee: docs@python components: Build, Documentation, Extension Modules, Windows, ctypes messages: 262308 nosy: Buraddin Ibn-Karlo, docs@python, paul.moore, steve.dower, tim.golden, zach.ware priority: normal severity: normal status: open title: Need an ability to build standard DLLs with distutils type: enhancement versions: Python 2.7
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Steve Dower added the comment:
(Obligatory recommendation that you use Cython rather than ctypes, especially if you're going to require your users to have a compiler handy - in general this isn't recommended on Windows at all; make sure you distribute wheels if you want to make your users' lives easiest.)
I haven't tested this, but I believe you want to specify your libraries with the `libraries` parameter, not the `extensions` parameter:
LIBRARIES = [ ('my_lib', {'sources': ['my_lib.c'], 'include_dirs': ['dirs', 'if', 'you', 'want'], 'macros': ['DEFINES', 'IF', 'YOU', 'WANT']}) ]
setup( ... libraries=LIBRARIES, ... )
Then you need to ensure build_clib is run to produce it. I'd imagine that will just happen, but I could be wrong.
Again, I haven't tried this myself, but it seems to be the right way to build a regular library.
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Steve Dower added the comment:
Oh, and just saw that you're apparently asking about 2.7. I was referring to the 3.5 sources for distutils, so some things may be different in 2.7. But I doubt distutils has changed that much since then.
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Irit Katriel iritkatriel@yahoo.com added the comment:
distutils is deprecated and python 2.7 is past EOL.
---------- nosy: +iritkatriel resolution: -> out of date stage: -> resolved status: open -> closed
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participants (3)
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Buraddin Ibn-Karlo -
Irit Katriel
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Steve Dower