title: poetry run tox FileNotFoundError
body: <p>While running <code>poetry run tox</code> I encountered the vague error FileNotFoundError</p>
  <pre class="lang-bash prettyprint-override"><code>poetry run tox                                                           1:38:03
  
    FileNotFoundError
  
    [Errno 2] No such file or directory: b'/sbin\n\nsource /Users/willcasswrig/.poetry/env/tox'
  
    at /usr/local/Cellar/python@3.9/3.9.12/Frameworks/Python.framework/Versions/3.9/lib/python3.9/os.py:607 in _execvpe
         603│         path_list = map(fsencode, path_list)
         604│     for dir in path_list:
         605│         fullname = path.join(dir, file)
         606│         try:
      →  607│             exec_func(fullname, *argrest)
         608│         except (FileNotFoundError, NotADirectoryError) as e:
         609│             last_exc = e
         610│         except OSError as e:
         611│             last_exc = e
  </code></pre>
  <p>Note: adding <code>-vvv</code> verbose flag didn't help</p>
  <p>Related bug and error handling thread on GitHub: <a href="https://github.com/python-poetry/poetry/issues/1567" rel="nofollow noreferrer">https://github.com/python-poetry/poetry/issues/1567</a></p>