rules:
- id: use-django-environ
  patterns:
  - pattern-not-inside: |
      import environ
      ...
  - pattern-either:
    - pattern: |
        import django
        ...
        import os
        ...
        $FOO = $M.environ[...]
    - pattern: |
        import os
        ...
        import django
        ...
        $FOO = $M.environ[...]
  message: You are using environment variables inside django app. Use `django-environ` as it a better alternative for deployment.
  languages: [python]
  severity: ERROR
  metadata:
    category: best-practice
    technology:
    - django