[Numpy-discussion] Right way to build Fortran 90 module using numpy.distutils

Kyle Mandli kyle.mandli@gmail....
Tue Aug 27 10:27:37 CDT 2013


On Tue, Aug 27, 2013 at 6:46 AM, Juan Luis Cano <juanlu001@gmail.com> wrote:

> I'm having some problems to properly build a module written in Fortran
> 90 using numpy.distutils. It only contains one subroutine, but:
>
> * If I write a .f90 file with the single subroutine (no module ..
> contains), then f2py tries to compile it using a f77 compiler, and
> that's not what I want.
> * If I put it inside a module definition, then at the final
> compilation stage modulef2pywrapper.c is missing the corresponding
> .mod file and I have to make the build fail, then copy the .mod from
> the temp directory and rebuild. Weird.
>
> On the other hand, with the second approach f2py creates a unnecessary
> level of nesting in the corresponding python module and I don't feel
> quite ok with that.
>
> What is the right way to do this? I find the documentation on
> numpy.distutils a bit lacking, I almost always find the solution by
> trial and error. I can push the code, it's a short file (part of the
> rewrite of odeint I'm doing in SciPy).
>
> Regards
>
> Juan Luis Cano
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> NumPy-Discussion@scipy.org
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>

You should be able to specify the compiler when invoking f2py, something
like:

f2py --fcompiler=$COMPILER -m $MODULE_NAME -c $SOURCE_FILE

Kyle
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