dotcompare

Compare .env files — find missing variables before they find you

Install

pip install dotcompare

Usage

from dotcompare import compare_env_files

diff = compare_env_files(".env.example", ".env")
print(diff.summary())

Output:

Missing in target (2):
  - DATABASE_URL
  - SECRET_KEY
Extra in target (1):
  + DEBUG_MODE

Features

• Compare any two .env files
• Find missing, extra, and changed variables
• Colored terminal output
• Value comparison (optional)
• Handles comments, blank lines, quoted values
• Zero dependencies
• Use in CI to block deploys with missing env vars

CI Integration

- name: Check env vars
  run: python -c "
    from dotcompare import compare_env_files
    diff = compare_env_files('.env.example', '.env.production')
    if diff.has_issues:
      print(diff.summary())
      exit(1)
  "

License

MIT