Problem importing module strings.py: cannot import name 'Counter'

[pkolbus]

On python 3.6.0, usage of pylint 2.8.2 results in an import warning to stdout.

N.B. typing.Counter was added in python 3.6.1, so this import probably needs to be wrapped in a TYPE_CHECKING guard.

(Yes, I know 3.6.0 is an old patch release. Still have it on some CI servers for unfortunate reasons.)

Steps to reproduce

Given that this warning seems to be coming from register_plugins() in utils.py, it is probably reproducible with any input file.

Current behavior

Printed message: Problem importing module strings.py: cannot import name 'Counter'

Expected behavior

No warning, and strings checker works as expected.

pylint --version output

Result of pylint --version output:

pylint 2.8.2
astroid 2.5.6
Python 3.6.0 (default, Jan 23 2017, 20:01:14) [MSC v.1900 64 bit (AMD64)]

[pkolbus]

Happy to contribute a patch if you like.

[cdce8p]

Happy to contribute a patch if you like.

Go for it! Tag me and I'll make sure to review it.

Had to search a bit, but it seams as this commit is the issue: link