Setup.py fails to build

[kiddinn]

Using:

$ pip --version
pip 20.0.2 from ....

I can no longer use setup.py to build the tool:

Traceback (most recent call last):
  File "setup.py", line 30, in <module>
    from pip._internal.download import PipSession
ModuleNotFoundError: No module named 'pip._internal.download'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "setup.py", line 33, in <module>
    from pip.download import PipSession
ModuleNotFoundError: No module named 'pip.download'

Looking at the pypi documentation I see: https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program

More specifically:

pip is a command line program. While it is implemented in Python, and so is available from your Python code via import pip, you must not use pip’s internal APIs in this way

The supported way of using it is:

subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'my_package'])

[joachimmetz]

Related/Duplicate #1190

[jaegeral]

Is this still an issue?

[jaegeral]

#1190 dealt already with it, closing this one out.