Adding pre-commit config

Author: carlio

.gitignore

@@ -37,4 +37,3 @@ nosetests.xml
 .idea
 env.txt
 .venv
-

.pre-commit-config.yaml

@@ -0,0 +1,26 @@
+# https://pre-commit.com/
+repos:
+  - repo: git://github.com/pre-commit/pre-commit-hooks
+    rev: v4.1.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+        args: [--fix=lf]
+      - id: debug-statements
+  # code formatting
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 4.0.1
+    hooks:
+      - id: flake8
+        args: [ --max-line-length=120 ]
+  - repo: https://github.com/python/black
+    rev: 21.9b0
+    hooks:
+      - id: black
+        args: [--safe, --line-length=120]
+  - repo: https://github.com/PyCQA/isort
+    rev: 5.10.1
+    hooks:
+      - id: isort
+        args: ['--profile', 'black']

LICENSE

@@ -291,7 +291,7 @@ convey the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
     Pylint plugin for improving code analysis for when using Django
-    Copyright (C) 2013  
+    Copyright (C) 2013
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by

pylint_django/__init__.py

@@ -5,9 +5,8 @@
 
 from pylint_django import plugin
 
-if sys.version_info < (3, ):
-    raise DeprecationWarning("Version 0.11.1 was the last to support Python 2. "
-                             "Please migrate to Python 3!")
+if sys.version_info < (3,):
+    raise DeprecationWarning("Version 0.11.1 was the last to support Python 2. " "Please migrate to Python 3!")
 
 register = plugin.register  # pylint: disable=invalid-name
 load_configuration = plugin.load_configuration  # pylint: disable=invalid-name