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Python Fortran import hook

Project description

Python import hook for importing Fortran modules.

Usage:

import fimport
fimport.install(reload_support=True)

import somefortrancode # <- builds and imports somefortrancode.f90

But why in the world would you want that? One reason is interactive use, where being able to reload modules is often very convenient.

This code is based on Cython’s pyximport module.

Note

Reloading modules doesn’t work currently on Python 3. You’ll have to do instead

some_module = imp.reload(some_module)

Build customization

A custom numpy.distutils.core.Extension instance and setup() args (Distribution) for for the build can be defined by a <modulename>.fbld file, such as:

import os
from numpy.distutils.core import Extension

def make_ext(modname, ffilename):
    cwd = os.path.dirname(__file__)
    return Extension(name=modname,
                     sources=[ffilename, 'other_file.f90'],
                     f2py_options=['only:', 'some_subroutine', ':'],
                     libraries=['lapack', 'blas'],
                     library_dirs=[cwd],
                     include_dirs=['/myinclude', cwd])

def make_setup_args():
    return dict(script_args=["--fcompiler=gnu"])

Extra dependencies can be listed in a <modulename>.fdep:

other_file.f90
some_include.inc
examplemodule.fbld

Project details


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