Pylint behaves differently on Mac vs Linux

[khawley]

Summary

Pylint is behaving differently based on different operating systems. On Mac it is throwing a not-callable and on Linux, it is throwing a no-member.

Steps to reproduce

1. Git clone the repo here that has been pared down to the simplest reproducible form.
2. Follow the instructions listed in the readme to setup a virtualenv + install pylint.
3. Running the specific pylint command will give different pylint errors based on operating system.

Current behavior

The attached table on the repo's readme shows the varying results across pylint, python, and os versions.

On Linux, running in virtualenv with python 3.6.8

$ pylint --version                   
pylint 2.3.0
astroid 2.2.5
Python 3.6.8 (default, Aug 15 2019, 13:29:58) 
[GCC 9.1.0]
$ pylint sub/main_folder/main_file.py
************* Module sub.main_folder.main_file
sub/main_folder/main_file.py:6:0: E1101: Module 'sub.other_folder.module' has no 'Module' member (no-member)

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Your code has been rated at -15.00/10 (previous run: -15.00/10, +0.00)

On Mac, running in virtualenv with python 3.6.8

» pylint --version
pylint 2.3.0
astroid 2.2.5
Python 3.6.8 (default, Jul 22 2019, 12:29:26)
[GCC 4.2.1 Compatible Apple LLVM 10.0.1 (clang-1001.0.46.4)]
» pylint sub/main_folder/main_file.py
************* Module sub.main_folder.main_file
sub/main_folder/main_file.py:6:0: E1102: module.Module is not callable (not-callable)

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Your code has been rated at -15.00/10 (previous run: -15.00/10, +0.00)

Expected behavior

It should give the same error everywhere.

[PCManticore]

Thanks for the clear reproduction examples, I appreciate it.

[Pierre-Sassoulas]

I don't have a mac on hand but I can reproduce on ubuntu:

git clone git@github.com:khawley/pylint-repro.git
pylint pylint-repro --recursive=y

The result is the following:

************* Module sub.main_folder.main_file
pylint-repro/sub/main_folder/main_file.py:6:0: E1101: Module 'sub.other_folder.module' has no 'Module' member (no-member)
************* Module sub.module.module
pylint-repro/sub/module/module.py:1:0: W0611: Unused module imported from other_folder (unused-import)

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Your code has been rated at 0.00/10

Maybe doing #4759 would help there.