Snapcraft and Numpy on Ubuntu Core

snapcraft
1

Hello,
finally I got my application snapped on Ubuntu 16.04 and 17.10 but now I try to snap it on Ubuntu Core (with my raspberry) and my python part (which depends on numpy) runs into following problem when building:

Running setup.py bdist_wheel for numpy ... error
Complete output from command /home/getty23/test/cavi-device-snap/parts/cavi-device-sdk/install/usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-uQWew9/numpy/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpviHEPkpip-wheel-:
Running from numpy source directory.
blas_opt_info:
blas_mkl_info:
 libraries mkl_rt not found in ['/home/getty23/test/cavi-device-snap/parts/cavi-device-sdk/install/usr/lib', '/usr/local/lib', '/usr/lib', '/usr/lib/arm-linux-gnueabihf']
 NOT AVAILABLE
 ...

my part looks like this:

parts:
  cavi-device-sdk:
    plugin: python
    python-version: python2
    source: ../cavi-device-sdk
    stage-packages:
     - libc6

I already tried to fix numpy to a certain version in the setup.py, I changed the part to something like this:

cavi-device-sdk:
  plugin: python
  python-version: python2
  source: ../cavi-device-sdk
  build-packages:
    - python-dev
    - python-numpy
  python-packages:
   - numpy==1.13.3
 stage-packages:
   - libc6

But nothing helped and I am pretty sure that this part was building before on Ubuntu Core (but it was a while ago when I executed it the last time).
Would be great to get some support from you.
Thanks

2

Does anyone has an idea what the problem might be over here? Thanks

3

Here is the actual problem from the log file (sorry that I did not add it from the beginning):

arm-linux-gnueabihf-gcc: numpy/core/src/multiarray/arrayobject.c
numpy/core/src/multiarray/arrayobject.c:1838:5: error: ‘array_methods’ undeclared here (not in a function)
   array_methods,                              /* tp_methods */
   ^
numpy/core/src/multiarray/arrayobject.c:1840:5: error: ‘array_getsetlist’ undeclared here (not in a function)
   array_getsetlist,                           /* tp_getset */
   ^
numpy/core/src/multiarray/arrayobject.c:1838:5: error: ‘array_methods’ undeclared here (not in a function)
   array_methods,                              /* tp_methods */
   ^
numpy/core/src/multiarray/arrayobject.c:1840:5: error: ‘array_getsetlist’ undeclared here (not in a function)
   array_getsetlist,                           /* tp_getset */

Would be great to get some support. Thanks

4

I found the answer to my problem. Seems that I used the wrong numpy version. With numpy 1.11.0 and the following stage packages it was working:

 - gcc
 - gfortran
 - python-dev
 - libc6
 - libblas3
 - liblapack3
 - libopenblas-dev
 - liblapack-dev
 - cython
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