1. Every Python module has it’s`__name__` defined and if this is`__main__`, it implies that the module is run standalone by the user, and we can do corresponding appropriate actions.

2. If you import this script as a module in another script, the**name** is set to the name of the script/module.

3. Python files can act as either reusable modules, or as standalone programs.

4. if`__name__ ==“main”:` is used to execute some code only if the file run directly, and is not being imported.

4.`if __name__ =="__main__":` is used to execute some code only if the file is run directly, and is not being imported.