Python-List (http://mail.python.org/mailman/listinfo/python-list) is the better place for this kind of question; Python-Dev is for the development of Python itself, not for development using Python.
When you built E1, it should have also built a ".lib" file in addition to the ".pyd". It's the .lib that needs to be referenced when building E2. If it did not, you may find this link helpful: http://www.mingw.org/wiki/CreateImportLibraries On Tue, Apr 23, 2013 at 4:18 AM, Emmanuel Bacry < emmanuel.ba...@polytechnique.fr> wrote: > Hello, > > I am a researcher in Applied Math. > For my work I write a lot of code and right now I am moving to python. > > I am writing some C extensions (using swig). > I wrote a first extension (a python module) which I'll call E1. > I wrote a setup.py which works fine on all platforms. > On Windows 7 it creates a library which is a .pyd file > > Now I want to write a second C extension E2 that is calling some functions > of E1. > The same kind of setup.py works fine on all platforms but Windows where it > says (during the link) that the function sof E1 that are called by E2 are > unreferenced. > I am clearly not a Windows pro ... I am using mingw32 on Windows. > Surfing the web, I understood that shared libraries work differently on > windows than on other platforms. And that I should > > 1- export the symbols (i.e., the functions) of E1 when I build E1. In the > distutils.Extension this seems to be done using > argument export_symbols=[list of symbols to export] > Now I have one problem : each time I specify in this list the name of a > function in E1 it says that it doesn't know this symbol > What am I doing wrong here, is there a special syntax ? > > 2- Now in the setup.py of E2 how do I declare that I want to use the E1 > shared lib.? Is the information on the exported symbol of E1 in the .pyd > file or in the .def file ? > I tried to specify the .pyd library in the arguments of the > distutils.Extension .... but I have the feeling that's not the right thing > to do (I have the feeling the .pyd is not the right file to point to) > Not mentioning the problem specifying the path of the library with > runtime_library_dirs ... which does not seem to work at all. > > Is there a simple way to do what I want to do ? > I did not find anything on the web explaining clearly what to do ... > I am really really stuck > > I would appreciate any kind of help > > > Emmanuel > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/curt%40hagenlocher.org >
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