cmatrices lib path

[pieper]

I did a fresh install of the current version on a linux VM (Amazon Linux AMI release 2016.09) following the installation instructions.

Then importing to python gives this error:

In [1]: import radiomics
Error loading C extensions, switching to python calculation:
Traceback (most recent call last):
  File "radiomics/__init__.py", line 233, in <module>
    from radiomics import _cmatrices as cMatrices
ImportError: cannot import name _cmatrices

As a workaround, this allows me to import:

sys.path.append('/home/pieper/pyradiomics/build/lib.linux-x86_64-2.7/radiomics')

Should we add this to the documentation or is there a better way to solve this?

[JoostJM]

@pieper, what is radiomics.__path__? It is possible/likely that this points to your repository (i.e. it's running in development mode). If so, first run python setup.py develop to make sure the C extensions are also available in source code.

I thought I included this in the FAQ, but apparently not, I'll correct this in a future PR.

[pieper]

what is radiomics.path?

In [2]: radiomics.__path__
Out[2]: ['radiomics']

Thanks @JoostJM , running sudo python setup.py develop resolves the issue.

I created a pull request to update the docs. Can you confirm the wording is appropriate and merge?

[JoostJM]

Resolved by #245 and #233