AttributeError: 'module' object has no attribute '__path__'

[nedbat]

This seems to happen on py 3.4+ with unusual imports.

Here's a failing Travis build: https://travis-ci.org/mgedmin/irclog2html/jobs/81338508

#!python
$ coverage run --source=irclog2html -m zope.testrunner.__init__ --test-path=src
Coverage.py warning: Module irclog2html was never imported.
Coverage.py warning: No data was collected.
Traceback (most recent call last):
  File "/home/travis/virtualenv/python3.4.2/bin/coverage", line 9, in <module>
    load_entry_point('coverage==4.0', 'console_scripts', 'coverage')()
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/coverage/cmdline.py", line 694, in main
    status = CoverageScript().command_line(argv)
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/coverage/cmdline.py", line 435, in command_line
    return self.do_run(options, args)
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/coverage/cmdline.py", line 569, in do_run
    self.run_python_module(args[0], args)
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/coverage/execfile.py", line 107, in run_python_module
    pathname, packagename = find_module(modulename)
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/coverage/execfile.py", line 44, in find_module
    spec = importlib_util_find_spec(mod_main)
  File "/home/travis/virtualenv/python3.4.2/lib/python3.4/importlib/util.py", line 87, in find_spec
    return _find_spec(fullname, parent.__path__)
AttributeError: 'module' object has no attribute '__path__'

It should be reproducible by checking out https://github.com/mgedmin/irclog2html/tree/2154cf870f3073a71471bb2863be64827c3d90c1 and then running "tox -e py34"

---

• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/410

[nedbat]

Original comment by Frank Wiles (Bitbucket: frankwiles, GitHub: frankwiles)

---

FYI I actually got this to happen on Python 2.7.6 also so don't think it's Python 3 related at all. coverage==3.7.1

[nedbat]

Original comment by Marius Gedminas (Bitbucket: mgedmin, GitHub: mgedmin)

---

$ .tox/py34/bin/python -i -m coverage run --source=irclog2html -m zope.testrunner.__init__ --test-path=src 
Coverage.py warning: Module irclog2html was never imported.
Coverage.py warning: No data was collected.
Traceback (most recent call last):
  File "/usr/lib/python3.4/runpy.py", line 170, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.4/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/__main__.py", line 8, in <module>
    sys.exit(main())
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/cmdline.py", line 694, in main
    status = CoverageScript().command_line(argv)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/cmdline.py", line 435, in command_line
    return self.do_run(options, args)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/cmdline.py", line 569, in do_run
    self.run_python_module(args[0], args)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/execfile.py", line 107, in run_python_module
    pathname, packagename = find_module(modulename)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/coverage/execfile.py", line 44, in find_module
    spec = importlib_util_find_spec(mod_main)
  File "/home/mg/src/irclog2html/.tox/py34/lib/python3.4/importlib/util.py", line 87, in find_spec
    return _find_spec(fullname, parent.__path__)
AttributeError: 'module' object has no attribute '__path__'
>>> import pdb
>>> pdb.pm()
> /home/mg/src/irclog2html/.tox/py34/lib/python3.4/importlib/util.py(87)find_spec()
-> return _find_spec(fullname, parent.__path__)
(Pdb) p parent
<module 'zope.testrunner.__init__' from '/home/mg/src/irclog2html/.tox/py34/lib/python3.4/site-packages/zope/testrunner/__init__.py'>
(Pdb) p fullname
'zope.testrunner.__init__.__main__'
(Pdb) parent.__path__
*** AttributeError: 'module' object has no attribute '__path__'

[nedbat]

Original comment by Marius Gedminas (Bitbucket: mgedmin, GitHub: mgedmin)

---

Some background for the strange -m zope.testrunner.__init__ if anyone's interested:

• I used to use zc.buildout a lot. The zc.recipe.testrunner would create a bin/test script that worked fine, but didn't work when run with bin/coverage run bin/test. I didn't investigate because life's too short and yaks are hairy.
• bin/coverage -m zope.testrunner works today, but didn't work back then because zope.testrunner didn't have a __main__.py. Besides, I wanted to support Python 2.6 too, and __main__.py wasn't a thing on 2.6.
• zope.testrunner had a main() in __init__.py because, IIRC, somebody submitted a patch that made python -m zope.testrunner work back when Python 2.5 was current.
• Therefore I tried bin/coverage -m zope.testrunner.__init__, found that it works, and kept it. Again, had no time to go deep and shave all the yaks (although I found some time later on to add a zope/testrunner/__main__.py and push out a release).
• Today there's no reason to use coverage run -m zope.testrunner.__init__, so this bug doesn't hurt me personally.

Anyway, I'm looking at the source and I think coverage.py is making some unwarranted assumptions.

[nedbat]

Fixed in 8dd7304852a0 (bb)

[Habush]

Still getting this error on python version 3.6.5 and coverage version 4.5.2

[nedbat]

@Habush Can you provide me with instructions to reproduce the problem?

[Habush]

I just ran coverage run -m tests.<test_file>. I think the issue is occurring because I am improting variables in init.py file. If I move those variables to other file then it works without an issue

[nedbat]

@Habush I would love to fix the problem, but I can't unless I can reproduce it. Can you link me to your code, and instructions for how to configure the environment and run the tests?