Main Guard Module Builder

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Module Information
Module Name
calculator.py
Module Type
With __name__ == "__main__" Guard
Module Structure
calculator.py
Usage Examples
Main Guard Benefits
Prevents code execution when imported
Allows direct script execution
Clean separation of concerns
Easy testing and debugging
Main Guard Best Practices
  • 1
    Always use if __name__ == "__main__" guard
  • 2
    Keep main execution code minimal
  • 3
    Use main guard for testing and examples
  • 4
    Import your own functions in main guard
  • 5
    Add clear execution messages
  • 6
    Handle command line arguments if needed