Why use def main()?

Question

I've seen some code samples and tutorials that use

def main(): # my code here 

if __name__ == "__main__":

main()

But why? Is there any reason not to define your functions at the top of the file, then just write code under it? ie

def my_function() # my code here def my_function_two() # my code here # some code # call function # print(something)

I just wonder if there is any rhyme to the main?

Answer 1

Yes, you can execute your code without defining any function at the top but for that, you need to import the script as a module.

You just need to write the following mentioned code at the top of your code:-

import module; 

module.main()

To know more about this you can have a look at the following video tutorial:-