What is the purpose of the 'if __name__ == '__main__': condition in Python?

The if __name__ == '__main__': condition in Python is used to determine whether a Python script is being run directly or being imported as a module in another script.

• When a script is run directly, the __name__ variable is set to "__main__", and the code block under this condition will execute.
• When the script is imported as a module, __name__ is set to the module's name, and the code block will not execute.

This allows you to write code that can be both reusable as a module and executable as a standalone script. Here's an example:

def main():
    print("This script is running directly.")

if __name__ == '__main__':
    main()

In this example, if you run the script directly, it will print the message. If you import this script in another module, the message will not be printed.