No such file or directory: '/usr/bin/pip' in projectenv.py

[StephanKuempel]

When installed using pip install sphinx-performance, i get the follownig error on calling sphinx-performance on my build machine:

File "/home/docs-as-code-user/.local/lib/python3.8/site-packages/sphinx_performance/projectenv.py", line 250, in install_dependencies
    subprocess.call(dep_command, stdout=subprocess.DEVNULL)
  File "/usr/lib/python3.8/subprocess.py", line 3[40](https://github.boschdevcloud.com/docs-as-code/sphinx-performance-tests/runs/974184?check_suite_focus=true#step:6:40), in call
    with Popen(*popenargs, **kwargs) as p:
  File "/usr/lib/python3.8/subprocess.py", line 858, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1704, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/usr/bin/pip'

If i check for python and pip installation paths on my (provided) build machine i get:

which python -> /usr/bin/python
which pip       -> /usr/local/bin/pip

[danwos]

Ohh Windows, my old nemesis :)
I was not thinking about Windows, when I did the implementation.
So some path calculations may not work.
Have to check, but should not be so hard to fix.

[StephanKuempel]

Ah, sorry, forgot to mention, that this is actually a unix build maching (hence /usr/bin/python and /usr/local/bin/pip).
It actually happens also for sphinx-build, which in this case is also in /usr/local/bin.

[danwos]

Argh sorry, and I mixed this issue with another one, where "pip.exe" was mentioned.

Understood the problem now: The executables of "python" and "pip" are in different folders, which is normally not the case, if a virtual environment is used.

So we can't use the python-path to calculate the pip-path in a save way.
Maybe which an be used (at least for linux / osx). Have to check....

[StephanKuempel]

I also don't know how this happened to be this way on this machine.
But as it is preinstalled already and already in the $PATH (also with venv ?) we can simply start the pyhon subprocess cmd with "pip" or "sphinx-build" even without the full path ?