Python's if name == "main" Explained

Pubblicato il: 18 settembre 2023
sul canale di: Darcy DeClute

6,394

126

Ever wonder what Python's "if name == main" construct does?

This Python tutorial will quickly explain what the if name == main condition does when added to your code.

The quick explanation?

Any time you want a single-point of entry for your Python apps, just put the code that kicks off your app in this block:

if _name_ == '__main__':

Then, when you run your Python app as a standalone application, the code in the if __name__=="__main__" block runs.

This is a smart approach if you want either run or import Python code as a library or a component.

It's similar to the void main() syntax of Java. C and C++ has similar constructs.

So there you go, that's the answer to the age old question of what does Python's if __name__=="__main__": do.

⏲️ KEY MOMENTS ⏲️
------------------------------------------
00:00 - Python Tutorial Intro
00:21 - Python Libraries
00:33 - Top Level Code
00:46 - if name == main
01:00 - Python Components
01:11 - if name == main example
02:30 - Python vs Java
03:09 - Scrum for Python!
03:20 - Is it Over?

In questa pagina del sito puoi guardare il video online Python's if __name__ == "__main__" Explained della durata di ore minuti seconda in buona qualità , che l'utente ha caricato Darcy DeClute 18 settembre 2023, condividi il link con amici e conoscenti, su youtube questo video è già stato visto 6,394 volte e gli è piaciuto 126 spettatori. Buona visione!

452