Configuration for multiple environments in manage.py

manage_example.py

import os

# By default assume it's local environment
env = os.environ.get("ENV", "LOCAL")

# PROD/DEV/LOCAL are values the environment variable ENV can have.
# Example for production server: ~$ export ENV=PROD
settings_files = {
   "PROD": "production_settings",
   "DEV": "development_settings",
   "LOCAL": "local_settings",
}

settings_file = settings_files.get(env)

try
    settings = __import__(settings_file, globals(), locals()) # Assumed to be in the same directory.
except:
    pass