pylint-django

import os import subprocess import tempfile import shutil # Create a temporary directory to simulate a Django app structure with tempfile.TemporaryDirectory() as temp_dir: app_dir = os.path.join(temp_dir, "myapp") os.makedirs(app_dir) # Create a dummy models.py that pylint-django can analyze models_code = ''' from django.db import models class Author(models.Model): name = models.CharField(max_length=100) class Book(models.Model): title = models.CharField(max_length=100) # pylint-django will check ForeignKey attributes, e.g., missing related_name author = models.ForeignKey(Author, on_delete=models.CASCADE) class Meta: ordering = ['title'] def __str__(self): return self.title ''' models_file_path = os.path.join(app_dir, "models.py") with open(models_file_path, "w") as f: f.write(models_code) print(f"Created temporary Django app file at: {models_file_path}") # Create a minimal settings.py required for Django's ORM and app loading settings_module_path = os.path.join(temp_dir, "settings.py") with open(settings_module_path, "w") as f: f.write(''' INSTALLED_APPS = ['myapp'] SECRET_KEY = 'insecure-key-for-testing' DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': 'db.sqlite3', } } ''') # Set DJANGO_SETTINGS_MODULE environment variable for Pylint's context os.environ['DJANGO_SETTINGS_MODULE'] = 'settings' print("Running Pylint with pylint-django loaded...") try: # Execute pylint from the temporary directory to correctly pick up settings.py result = subprocess.run( [ "pylint", "--load-plugins", "pylint_django", "--disable=all", # Disable default Pylint checks for clearer output "--enable=django-model-checks,django-form-checks,django-admin-checks,django-template-checks,django-other-checks", # Enable specific pylint-django checkers "--rcfile=NONE", # Ignore user's pylintrc for consistent results models_file_path # Target file for linting ], capture_output=True, text=True, check=False, # Do not raise exception for non-zero exit codes (linting errors/warnings) cwd=temp_dir # Run subprocess in the temporary directory ) print("\n--- Pylint Output ---") print(result.stdout) if result.stderr: print("\n--- Pylint Errors (stderr) ---") print(result.stderr) print("--- End Pylint Output ---") except FileNotFoundError: print("Error: 'pylint' command not found. Please ensure Pylint and pylint-django are installed.") except Exception as e: print(f"An unexpected error occurred: {e}") finally: # Clean up the environment variable del os.environ['DJANGO_SETTINGS_MODULE']