Pylint: discard cached file state

Question

I use this answer to run pylint from PY script. (I use pylint plugin similar to SublimeLinter, but no new process of Python is used, Python is embedded into Windows program). I see that even if I change source file, ie fixed errors, pylint still gives old messages.

E.g. I opened source code in editor, I have function w/out docstring, pylint shows this error. Now I add docstring, save file (I don't restart editor), and call pylint-plugin again - but pylint still gives "no docstring" error.

Any way to have actual error messages without restarting editor with pylint plugin? Any way to tell pylint "discard file cache"?

Answer 1

astroid (pylint's underlying library for AST) is holding a cache of ast per module. Try the code below to throw away the whole cache:

from astroid import MANAGER
MANAGER.astroid_cache.clear()

Relevant issue: https://github.com/PyCQA/pylint/issues/158

Answer 2

Using pylint in vscode on Windows with similar issues:

1. go to C:\Users[my username].pylint.d directory
2. delete the .stat files making problems
3. restart vscode
4. trigger pylint again

Note: In my case I renamed a file from uppercase to lowercase. Then I got the result