Heya, I'm trying to use pylint3 on a bunch of Python 3 modules that use PEP 420 implicit namespaces. All imports work just fine outside of pylint, but most of them fail with an ImportError within pylint and I don't understand why.

My understanding from the issue tracker was that this issue should've been solved in the version of pylint I'm using. So either it's not, or I'm missing something :)

A sample of the issues I'm facing is reported below. Advice welcome!

zack@scaramouche:~$ pylint3 --version pylint3 1.7.2, astroid 1.5.3 Python 3.5.4 (default, Aug 12 2017, 14:08:14) [GCC 7.1.0]

zack@scaramouche:~/swh/git/swh-environment/swh-model$ ls swh/model/ exceptions.py fields git.py hashutil.py identifiers.py __init__.py __pycache__ tests validators.py zack@scaramouche:~/swh/git/swh-environment/swh-model$ ls -l swh/model/__init__.py -rw-r--r-- 1 zack zack 0 ago 29 12:53 swh/model/__init__.py zack@scaramouche:~/swh/git/swh-environment/swh-model$ python3 Python 3.5.4 (default, Aug 12 2017, 14:08:14) [GCC 7.1.0] on linux Type "help", "copyright", "credits" or "license" for more information.

...

...

import swh.model import swh.model.git import swh.model.hashutil

So all works well with "pure" python3. Now let's see with pylint3:

zack@scaramouche:~/swh/git/swh-environment/swh-model$ pylint3 swh.model.hashutil > /dev/null zack@scaramouche:~/swh/git/swh-environment/swh-model$ pylint3 swh.model.git > /dev/null

The above ones work, when loading leaf modules.

Loading the upper module "swh.model" doesn't work though:

zack@scaramouche:~/swh/git/swh-environment/swh-model$ pylint3 swh.model > /dev/null Traceback (most recent call last): File "/home/zack/bin/pylint3", line 11, in <module> sys.exit(run_pylint()) File "/home/zack/.local/lib/python3.5/site-packages/pylint/__init__.py", line 13, in run_pylint Run(sys.argv[1:]) File "/home/zack/.local/lib/python3.5/site-packages/pylint/lint.py", line 1300, in __init__ linter.check(args) File "/home/zack/.local/lib/python3.5/site-packages/pylint/lint.py", line 726, in check self._do_check(files_or_modules) File "/home/zack/.local/lib/python3.5/site-packages/pylint/lint.py", line 837, in _do_check for descr in self.expand_files(files_or_modules): File "/home/zack/.local/lib/python3.5/site-packages/pylint/lint.py", line 869, in expand_files self.config.black_list_re) File "/home/zack/.local/lib/python3.5/site-packages/pylint/utils.py", line 894, in expand_modules modpath = _modpath_from_file(subfilepath, is_namespace) File "/home/zack/.local/lib/python3.5/site-packages/pylint/utils.py", line 833, in _modpath_from_file return modutils.modpath_from_file_with_callback(filename, is_package_cb=_is_package_cb) File "/home/zack/.local/lib/python3.5/site-packages/astroid/modutils.py", line 310, in modpath_from_file_with_callback filename, ', \n'.join(sys.path))) ImportError: Unable to find module for /home/zack/dati/projects/sw-heritage/git/swh-environment/swh-model/swh/model/hashutil.py in /home/zack/dati/projects/sw-heritage/git/swh-environment/swh-model, ., /home/zack/.local/bin, /home/zack/dati/projects/sw-heritage/git/swh-environment/swh-archiver,

[ long list of PYTHONPATH entries snipped ]

Any idea?

Cheers.