AttributeError: ‘module’ object has no attribute ‘PLUGIN_MANAGER_ADDHOOKS’

[NareshMurthy]

I am running python2 and pytest=4.6.11 on my machine and everything works fine, I am trying install the same thing in another machine and I face this below issue.
pytest --version throws me AttributeError: ‘module’ object has no attribute ‘PLUGIN_MANAGER_ADDHOOKS’

Could someone please help?

[RonnyPfannschmidt]

please paste the complete trackback, without more details on your env our best guess is user error

EDIT its likely related to pytest pre 7513d87 and a botched installation of pytest

for anything else we need more details

[NareshMurthy]

This is the complete error

AttributeError: 'module' object has no attribute 'PLUGIN_MANAGER_ADDHOOKS'
<auto> node--202 ubuntu@1xxxx~$ /usr/local/bin/py.test --version
Traceback (most recent call last):
  File "/usr/local/bin/py.test", line 8, in <module>
    sys.exit(main())
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 65, in main
    config = _prepareconfig(args, plugins)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 214, in _prepareconfig
    pluginmanager=pluginmanager, args=args
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/hooks.py", line 286, in __call__
    return self._hookexec(self, self.get_hookimpls(), kwargs)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 93, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 87, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 203, in _multicall
    gen.send(outcome)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/helpconfig.py", line 94, in pytest_cmdline_parse
    config = outcome.get_result()
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 81, in get_result
    _reraise(*ex)  # noqa
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 789, in pytest_cmdline_parse
    self.parse(args)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 997, in parse
    self._preparse(args, addopts=addopts)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 943, in _preparse
    self.pluginmanager.load_setuptools_entrypoints("pytest11")
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 300, in load_setuptools_entrypoints
    self.register(plugin, name=ep.name)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 328, in register
    ret = super(PytestPluginManager, self).register(plugin, name)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 127, in register
    hook._maybe_apply_history(hookimpl)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/hooks.py", line 333, in _maybe_apply_history
    res = self._hookexec(self, [method], kwargs)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 93, in _hookexec
    return self._inner_hookexec(hook, methods, kwargs)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/manager.py", line 87, in <lambda>
    firstresult=hook.spec.opts.get("firstresult") if hook.spec else False,
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 208, in _multicall
    return outcome.get_result()
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 81, in get_result
    _reraise(*ex)  # noqa
  File "/home/ubuntu/.local/lib/python2.7/site-packages/pluggy/callers.py", line 187, in _multicall
    res = hook_impl.function(*args)
  File "/usr/local/lib/python2.7/dist-packages/xdist/plugin.py", line 48, in pytest_addhooks
    pluginmanager.addhooks(newhooks)
  File "/home/ubuntu/.local/lib/python2.7/site-packages/_pytest/config/__init__.py", line 266, in addhooks
    warnings.warn(deprecated.PLUGIN_MANAGER_ADDHOOKS, stacklevel=2)

[The-Compiler]

Judging from that stacktrace, you have a pytest-xdist 1.11 installed, which was released over 6 years ago...

[RonnyPfannschmidt]

based on the command and the stack trace, a global installed pytest is being overridden by a user site installed pytest and everything breaks apart by that

its a botched installation, a cleanup is needed and i strongly suggest to use a virtualenv to isolate things

[NareshMurthy]

Thanks @RonnyPfannschmidt @The-Compiler i'll try a clean install.