compile error when installing via pip3 about pysndfile HOT 5 CLOSED

Thanks, I prepared this with python3.6 and you have python 3.7, You need to install cython for your python installation for this to work. I will look how to add this dependency into the installer.

from pysndfile.

I had some similar problems when using pysndfile from pypi. Currently the package assumes and requires numpy and cython, which is not perfect. E.g. running

$ pip download --no-deps --no-binary=:all pysndfile
Collecting pysndfile
  Using cached https://files.pythonhosted.org/packages/00/32/271564283bcde85c8b376290b65ed4eba3e10798a485cfd0ba80de94d993/pysndfile-1.3.3.tar.gz
  Saved c:\svein\prosjekt\elns\pysndfile-1.3.3.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\svein\AppData\Local\Temp\pip-download-9vz9dlkp\pysndfile\setup.py", line 11, in <module>
        import numpy as np
    ModuleNotFoundError: No module named 'numpy'

fails for simple download. The expected behavior is that pip should be able to download the source repo. This is caused by the direct import of numpy inside the setup.py script. Unfortunately, I haven't any knowledge on how it should be implemented. I pushed the problem ahead of myself by simply preinstalling numpy and cython in the venv before dealing with pysndfile.

from pysndfile.

The problem is that when I started the project in 2014 build requirements could not be handled by setup.py. Moreover there is always the dependency of libsndfile that cannot be handled anyway because it is outside the pypi world.

While libsndfile is still not handled there exist means to handle build dependencies (here cython and numpy) following suggestions in PEP 518. I made a few trials and at least for the latest version of pip 19.1 this seems to work quite nicely. You find this implemented in pysndfile 1.3.4. It includes as well the changes from issue #3 related to the support for windows. If I don't get any feedback for problems here I will close this issue.

from pysndfile.

I tested 1.3.4 in my windows build environment without pre-installing numpy and cython. I cannot tell for certain, as the build fails of other reasons, but it does seem like the dependency fix works.

from pysndfile.

ok, great, thanks for testing.

from pysndfile.