pypy -m pip install cmake fails

[dhermes]

$ pypy-venv/bin/pip install cmake
Collecting cmake
  Using cached https://files.pythonhosted.org/packages/ca/dd/b1df8148e52f94404979d879bf6fb763dc85a1c421729909b0089d22331f/cmake-3.13.1.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<module>", line 1, in <module>
      File "/tmp/pip-install-P2Cl5_/cmake/setup.py", line 7, in <module>
        from skbuild import setup
    ImportError: No module named skbuild

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-P2Cl5_/cmake/

[dhermes]

When scikit-build is present, it fails for different reasons:

$ pypy -m virtualenv pypy-venv
...
$ pypy-venv/bin/pip install scikit-build
...
Successfully installed packaging-18.0 pyparsing-2.3.0 scikit-build-0.8.1 six-1.12.0
$ pypy-venv/bin/pip install cmake
...
  Traceback (most recent call last):
    File "<module>", line 1, in <module>
    File "/tmp/pip-install-5AvaLq/cmake/setup.py", line 78, in <module>
      setup_requires=setup_requires
    File ".../pypy-venv/site-packages/skbuild/setuptools_wrap.py", line 548, in setup
      languages=cmake_languages
    File ".../pypy-venv/site-packages/skbuild/cmaker.py", line 203, in configure
      python_library),
  TypeError: unsupported operand type(s) for +: 'str' and 'NoneType'

  ----------------------------------------
  Failed building wheel for cmake
...

[jcfr]

Thanks for reporting the issue.

Waiting we address the issue reported in the second comment, is pypy always expected to build package from source ? Or should it download existing wheel ?

[jcfr]

I just released you tried to use http://doc.pypy.org. Similarly to cpython, is there prescribed docker images to use for building package on linux ?

[dhermes]

is pypy always expected to build package from source ? Or should it download existing wheel ?

Looking at the wheels for cmake, they all have cpXY-cpXYm[u]. That cp stands for CPython. (AFAIK PyPI only allows uploading wheels for CPython.)

I just released you tried to use http://doc.pypy.org.

I actually use pyenv to install my local version of pypy, but that shouldn't matter?

[jcfr]

see scikit-build/scikit-build#407

[thewtex]

Now that the cmake wheels are using py2-none and py3-none instead of cpXY-cpXYm[u], has this issue been addressed?

[henryiii]

Yes, it does! Just checked with pypy3 7.3.4. (On macOS, you still have to upgrade pip in the venv, as pypy ships with 20.1.1, which doesn't support wheels on Big Sur 😠 )