PyLint shows "Unable to import" error with app's module file in Django project

I have an app named "diary" in my Django project:

school_diary/
    diary/
        <standart files inside app>
        views.py
        forms.py

Inside my views.py I make this import:

from . import forms

PyLint marks it as error. Here's what I have inside my settings.json:

{
    ...,
    "python.linting.enabled": true,
    "on.linting.pylintEnabled": true,
    "python.linting.lintOnSave": true,
    "python.linting.maxNumberOfProblems": 200,
    "python.linting.pylintPath": "/home/alantheknight/Python/Environments/secenv/bin/pylint",
    "python.pythonPath": "/home/alantheknight/Python/Environments/secenv/bin/python3.7",
    ...

Also, I read about generating .pylintrc, so I ran this command:

$ pylint --generate-rcfile > ~/.pylintrc

Where have I made a mistake?