AssertionError triggered by pytest --override-ini='pythonpath=foo' #11311
Description
Description
The option --override-ini='pythonpath=foo' may trigger an AssertionError.
Minimal example
Running pytest --override-ini='pythonpath=foo' in an empty directory fails with
Traceback (most recent call last): File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1495, in getini return self._inicache[name] ~~~~~~~~~~~~~~^^^^^^ KeyError: 'pythonpath' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/miccoli/.pyenv/versions/_pytest_bug/bin/pytest", line 8, in <module> sys.exit(console_main()) ^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 189, in console_main code = main() ^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 147, in main config = _prepareconfig(args, plugins) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 328, in _prepareconfig config = pluginmanager.hook.pytest_cmdline_parse( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_hooks.py", line 433, in __call__ return self._hookexec(self.name, self._hookimpls, kwargs, firstresult) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_manager.py", line 112, in _hookexec return self._inner_hookexec(hook_name, methods, kwargs, firstresult) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_callers.py", line 133, in _multicall teardown[0].send(outcome) File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/helpconfig.py", line 103, in pytest_cmdline_parse config: Config = outcome.get_result() ^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_result.py", line 108, in get_result raise exc.with_traceback(exc.__traceback__) File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_callers.py", line 80, in _multicall res = hook_impl.function(*args) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1075, in pytest_cmdline_parse self.parse(args) File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1425, in parse self._preparse(args, addopts=addopts) File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1327, in _preparse self.hook.pytest_load_initial_conftests( File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_hooks.py", line 433, in __call__ return self._hookexec(self.name, self._hookimpls, kwargs, firstresult) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_manager.py", line 112, in _hookexec return self._inner_hookexec(hook_name, methods, kwargs, firstresult) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_callers.py", line 155, in _multicall return outcome.get_result() ^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_result.py", line 108, in get_result raise exc.with_traceback(exc.__traceback__) File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/pluggy/_callers.py", line 80, in _multicall res = hook_impl.function(*args) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/python_path.py", line 15, in pytest_load_initial_conftests for path in reversed(early_config.getini("pythonpath")): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1497, in getini self._inicache[name] = val = self._getini(name) ^^^^^^^^^^^^^^^^^^ File "/Users/miccoli/.pyenv/versions/3.11.4/envs/_pytest_bug/lib/python3.11/site-packages/_pytest/config/__init__.py", line 1540, in _getini assert self.inipath is not None ^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError Output of pip list and enviornment
Package Version ---------- ------- iniconfig 2.0.0 packaging 23.1 pip 23.2.1 pluggy 1.2.0 pytest 7.4.0 setuptools 65.5.0 Run on macOS-13.2.1-x86_64-i386-64bit, but same problem also on linux.
Context
I stumbled in this error while building a python package for Arch: instead of using
check(){ cd "$_name-$pkgver" PYTHONPATH=src pytest }I tried
check(){ cd "$_name-$pkgver" pytest -o pythonpath=src }which fails with the above traceback.
I replicated the problem on a MacOs stripped down venv just to be sure that it is not related to the ArchLinux build env, which is quite complicated.