On 28/10/14 06:46 AM, Wintersberger, Eugen wrote: > Hi Stefan > > On Fri, 2014-10-24 at 07:12 -0400, Stefan Seefeld wrote: >> .... >>>> Alternatively you could try to reduce the >>>> dependency to only exist at the Python interface level, such that using >>>> 'b' requires 'a' being loaded (for example to enable type converters >>>> defined in 'a' but used in 'b'), but without any direct ABI dependencies >>>> between 'a' and 'b'. >>> This is interesting as it is much closer to my real problem. Extension >>> 'a' provides some converters from numpy objects to my own C++ types and >>> back. And these guys I would like to use in 'b' (along with some other >>> numpy utility functions). >> And why is that approach then not working for you ? >> >> Stefan >> > Well, I think I found a solution. However, I have no idea how to do this > with distutils. As you suggested I will build a shared library with the > common code but bound to a particular Python version. It should be > installed in > > $PREFIX/lib/pythonX.Y/some more directories > > and header files to > > $PREFIX/include/pythonX.Y/some more directories > > What I still do not know is how to build the extension module along with > the shared library with distutils ;). I guess I will put this question > on the Python list - or maybe someone at this list has an idea how to do > this. > Thanks for all your efforts so far.
Eugen, For avoidance of doubt, I don't think I'm able to help you with that. I have used distutils in the past, but found it pretty limited in its support of extension modules. I ended up adding a few custom commands to build pure C++ libraries (specifically for dependencies shared by multiple extension modules). That was never particularly elegant or generic, and so I don't think it's worth reusing this. An example of this you can find in https://github.com/stefanseefeld/synopsis/tree/master/Synopsis/dist (in case you are brave enough :-) ). I haven't touched that code in quite a while, and there may be much better solutions these days using more modern substitutes for the distutils package. Regards, Stefan -- ...ich hab' noch einen Koffer in Berlin... _______________________________________________ Cplusplus-sig mailing list Cplusplus-sig@python.org https://mail.python.org/mailman/listinfo/cplusplus-sig
