error: unknown file type '.hpp' in distutils extension module

Question

I'm trying to generate Python bindings for some C++ code using SWIG.

It created some blah_wrap.cxx and blah.py files.

I then created this setup.py

from distutils.core import setup, Extension

ext = Extension('_ev3',
    sources=[
        'ev3_serial_wrap.cxx',
        'ev3_serial.hpp'
        'ev3_motor_wrap.cxx',
        'ev3_motor.hpp'
        'ev3_i2c_wrap.cxx',
        'ev3_i2c.hpp'
        'ev3_analog_wrap.cxx',
        'ev3_analog.hpp'
    ],
    language='c++',
)

setup (name = 'evpy',
       version = '0.1',
       author      = "Pepijn de Vos",
       description = """
       An EV3 API.
       """,
       ext_modules = [ext],
       packages=['evpy'],
       )

But then I get

$ python3 setup.py build
running build
running build_py
running build_ext
building '_ev3' extension
error: unknown file type '.hpp' (from 'ev3_analog.hpp')

.hpp is a pretty standard C++ extensions right? Why not .cpp? I don't know, the author of the original code put the implementation in his header files.

`distutils` will use SWIG to generate the `_wrap.cxx` when you use the command `python setup.py build_ext`. I don't think it's required to include the `_wrap.cxx` files in your `sources` list, but this is probably not the source of the error — mark jay, Dec 30 '16 at 22:53

dkamm · Answer 1 · 2013-11-26T02:38:11.493

1

You can use the parameter "include_dirs". See the documentation for Extension here: http://docs.python.org/2/extending/building.html http://docs.python.org/2/distutils/apiref.html#distutils.core.Extension

edited Nov 26 '13 at 02:38

answered Nov 25 '13 at 22:47

dkamm

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score 0 · Answer 2 · edited Jan 17 '14 at 16:10

0

Basically, .h and .hpp do the same jobs, try to change the extension to .h, your python script might not know .hpp files (which is not a shame)...

edited Jan 17 '14 at 16:10

Anthon

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answered Oct 04 '13 at 10:45

Thomas Ayoub

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score 0 · Accepted Answer · answered Oct 04 '13 at 20:55

0

Are you sure header files are supposed to go in the sources argument, and not in another like headers?

answered Oct 04 '13 at 20:55

merwok

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error: unknown file type '.hpp' in distutils extension module

3 Answers3