ModuleNotFoundError: No module named 'py'

[Dmitri-Sintsov]

Issue

github actions fail with updated to stable tox 4.x

With previous stable version of tox (https://pypi.org/project/tox/3.27.1/) the github actions were running just fine:

https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793

Now when stable tox 4.x is out and is picked by pip, the actions produce the following error:

https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3647429807/jobs/6159652294#step:5:74

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.10.8/x64/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/opt/hostedtoolcache/Python/3.10.8/x64/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/__main__.py", line 6, in <module>
    run()
  File "/home/runner/.local/lib/python3.10/site-packages/tox/run.py", line 19, in run
    result = main(sys.argv[1:] if args is None else args)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/run.py", line [38](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:39), in main
    state = setup_state(args)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/run.py", line 53, in setup_state
    options = get_options(*args)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/config/cli/parse.py", line 38, in get_options
    guess_verbosity, log_handler, source = _get_base(args)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/config/cli/parse.py", line 61, in _get_base
    MANAGER.load_plugins(source.path)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/plugin/manager.py", line 83, in load_plugins
    self._register_plugins(inline)
  File "/home/runner/.local/lib/python3.10/site-packages/tox/plugin/manager.py", line 37, in _register_plugins
    self.manager.load_setuptools_entrypoints(NAME)
  File "/home/runner/.local/lib/python3.10/site-packages/pluggy/_manager.py", line 287, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/opt/hostedtoolcache/Python/3.10.8/x64/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/opt/hostedtoolcache/Python/3.10.8/x64/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 2[41](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:42), in _call_with_frames_removed
  File "/home/runner/.local/lib/python3.10/site-packages/tox_pyenv.py", line [47](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:48), in <module>
    import py
ModuleNotFoundError: No module named 'py'
Error: Process completed with exit code 1.

Environment

Provide at least:

Environment used to run the tests
Kernel version
Linux fv-az251-82 5.15.0-1024-azure #30-Ubuntu SMP Wed Nov 16 [23](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:24):37:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
System version
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.1 LTS
Release:	22.04
Codename:	jammy

Python version
Python 3.10.8
Chrome version
Google Chrome 108.0.5359.94 
Chrome driver version
ChromeDriver 108.0.5[35](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:36)9.71 (1e0e3868ee06e91ad6[36](https://github.com/Dmitri-Sintsov/djk-sample/actions/runs/3469672017/jobs/5797158793#step:5:37)a874420e3ca3ae3756ac-refs/branch-heads/5359@{#1016})

Output of running tox

I cannot re-run arbitrary tox commands from github action console, however using local environment with the same Ubuntu 22.04 produces the following error:

user@h67:~/work/djk-sample310/djk-sample$ python3 -m tox -r -e py3.10-django-4.1-bs3
Traceback (most recent call last):
  File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code
    exec(code, run_globals)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/__main__.py", line 6, in <module>
    run()
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 19, in run
    result = main(sys.argv[1:] if args is None else args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 38, in main
    state = setup_state(args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 53, in setup_state
    options = get_options(*args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/config/cli/parse.py", line 38, in get_options
    guess_verbosity, log_handler, source = _get_base(args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/config/cli/parse.py", line 61, in _get_base
    MANAGER.load_plugins(source.path)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/plugin/manager.py", line 83, in load_plugins
    self._register_plugins(inline)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/plugin/manager.py", line 37, in _register_plugins
    self.manager.load_setuptools_entrypoints(NAME)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/pluggy/_manager.py", line 287, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox_pyenv.py", line 48, in <module>
    from tox import hookimpl as tox_hookimpl
ImportError: cannot import name 'hookimpl' from 'tox' (/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/__init__.py)

Provide the output of tox -rvv:

user@h67:~/work/djk-sample310/djk-sample$ tox -rvv
Traceback (most recent call last):
  File "/home/user/work/djk-sample310/bin/tox", line 8, in <module>
    sys.exit(run())
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 19, in run
    result = main(sys.argv[1:] if args is None else args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 38, in main
    state = setup_state(args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/run.py", line 53, in setup_state
    options = get_options(*args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/config/cli/parse.py", line 38, in get_options
    guess_verbosity, log_handler, source = _get_base(args)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/config/cli/parse.py", line 61, in _get_base
    MANAGER.load_plugins(source.path)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/plugin/manager.py", line 83, in load_plugins
    self._register_plugins(inline)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/plugin/manager.py", line 37, in _register_plugins
    self.manager.load_setuptools_entrypoints(NAME)
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/pluggy/_manager.py", line 287, in load_setuptools_entrypoints
    plugin = ep.load()
  File "/usr/lib/python3.10/importlib/metadata/__init__.py", line 171, in load
    module = import_module(match.group('module'))
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/user/work/djk-sample310/lib/python3.10/site-packages/tox_pyenv.py", line 48, in <module>
    from tox import hookimpl as tox_hookimpl
ImportError: cannot import name 'hookimpl' from 'tox' (/home/user/work/djk-sample310/lib/python3.10/site-packages/tox/__init__.py)
user@h67:~/work/djk-sample310/djk-sample$ 

Minimal example

One may re-run project jobs manually, however tox has to be updated or perhaps something has to be fixed in tox.ini and / or github actions settings.

Reverting locally to tox 3.x works fine in the same local environment:

user@h67:~/work/djk-sample310/djk-sample$ pip3 install tox==3.27.1
Collecting tox==3.27.1
  Using cached tox-3.27.1-py2.py3-none-any.whl (86 kB)
Requirement already satisfied: tomli>=2.0.1 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (2.0.1)
Requirement already satisfied: packaging>=14 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (22.0)
Requirement already satisfied: filelock>=3.0.0 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (3.8.2)
Requirement already satisfied: pluggy>=0.12.0 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (1.0.0)
Requirement already satisfied: virtualenv!=20.0.0,!=20.0.1,!=20.0.2,!=20.0.3,!=20.0.4,!=20.0.5,!=20.0.6,!=20.0.7,>=16.0.0 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (20.17.1)
Requirement already satisfied: six>=1.14.0 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (1.16.0)
Requirement already satisfied: py>=1.4.17 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from tox==3.27.1) (1.11.0)
Requirement already satisfied: platformdirs<3,>=2.4 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from virtualenv!=20.0.0,!=20.0.1,!=20.0.2,!=20.0.3,!=20.0.4,!=20.0.5,!=20.0.6,!=20.0.7,>=16.0.0->tox==3.27.1) (2.6.0)
Requirement already satisfied: distlib<1,>=0.3.6 in /home/user/work/djk-sample310/lib/python3.10/site-packages (from virtualenv!=20.0.0,!=20.0.1,!=20.0.2,!=20.0.3,!=20.0.4,!=20.0.5,!=20.0.6,!=20.0.7,>=16.0.0->tox==3.27.1) (0.3.6)
Installing collected packages: tox
  Attempting uninstall: tox
    Found existing installation: tox 4.0.2
    Uninstalling tox-4.0.2:
      Successfully uninstalled tox-4.0.2
Successfully installed tox-3.27.1
user@h67:~/work/djk-sample310/djk-sample$ 
user@h67:~/work/djk-sample310/djk-sample$ python3 -m tox -r -e py3.10-django-4.1-bs3
py3.10-django-4.1-bs3 create: /home/user/work/djk-sample310/djk-sample/.tox/py3.10-django-4.1-bs3
py3.10-django-4.1-bs3 installdeps: git+https://github.com/Dmitri-Sintsov/djk-bootstrap3.git, Django>=4.1,<4.2, django-allauth, -r/home/user/work/djk-sample310/djk-sample/requirements/dev.txt

[jugmac00]

Thanks for the detailed report.

This is not an issue in tox, but in tox-pyenv.

It has been already reported at tox-dev/tox-pyenv#21

To get unblocked, you could pin tox < 4 until somebody updates tox-pyenv.

Please know that this plugin is not maintained by the tox core maintainers, and we have no capacity to help here.