FileNotFoundError ruff'

[caph1993]

In linux, running spin lint gives me this error.

Traceback (most recent call last):
  File "/usr/lib64/python3.11/subprocess.py", line 548, in run
    with Popen(*popenargs, **kwargs) as process:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib64/python3.11/subprocess.py", line 1026, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib64/python3.11/subprocess.py", line 1955, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'ruff'

An internal error has occurred. Please file a bug report at

  https://github.com/scientific-python/spin

including the above traceback and the following information:

  spin: 0.13, package: numpy

Aborting.

Running ruff gives zsh: command not found: ruff, because it's not installed.

Running python -m pip install ruff fixes the issue, so there's an error with the dependencies. I'm in Python 3.11, OpenSUSE Tumbleweed.

[stefanv]

Thanks @caph1993, this is a good reminder to improve that error message. I should do two things:

(1) Catch exceptions in run, so that they don't propagate through to this point and
(2) Not direct users to file bugs here when the traceback comes from a custom command.

For your specific case: in NumPy, the .spin/cmds.py lint command should be made more robust to deal with missing ruff.