if __name__ == "__main__" in Python The Real Reason | Why we use this in Python

Welcome to today's video where we dive into one of the most fundamental concepts in Python programming: _name_ == '__main__'. Understanding this concept is crucial for every Python developer, whether you're a beginner or seasoned coder.
mastering _name_ == '__main__' empowers you to write cleaner, more modular Python scripts that are robust and scalable. Whether you're writing scripts for personal projects or enterprise applications, understanding this fundamental concept will elevate your Python programming skills.
Related Queries
if _name_ == "__main__" in python
how to use _name_ == "main" in python
python name main
python name == main
name == main in python

[@dan-us6nk]

The ending still isn't clear. What do you mean by "accidentally executing the module while importing it"?

[@pratikpal5565]

Cause you call the function in the same file.

[@top5things895]

When we use if __name__ == '__main__', we are checking whether the current program is being run directly or being imported as a module into another program. If we import the first file into a second one without if __name__ == '__main__', Python will execute the code in the first file without distinguishing whether it is being run as the main program or not. By using if __name__ == '__main__', we ensure that the hello() function is specifically executed only when the first program file is run directly as the main file. I hope this explanation helps clarify the usage and importance of if __name__ == '__main__'

[@ebraheemelsharkawy3858]

Helpful, concise, and to the point. Thank you for making this video!

[@daveit1337]

What does __name__ contain when it's run within the imported module?

[@top5things895]

It will return the name of imported module , let say file1.py contain print(__name__) , then it will print "file1"

[@IvanToshkov]

Here is my take. This construct is obviously a hack. I can't believe that Guido van Rossum would have designed modules this way if he had included them from the start. So I'd guess that modules in python were a later addition and he designed them in a way that is relatively simple to implement. However, this created the problem that just importing a module would execute any top-level code and this hack was the solution.
I'd love to hear the real story behind those and see how far I'm off the target. :)

[@tomschi9485]

*The answer is trivial and obvious: As is so often the case, the developers of Python didn't know how to solve these problems properly - or they were too lazy.*
*It is very surprising that Python is so widely used, because the syntax is a pain and often has the level of knowledge of 1-2 decades ago. An obvious example are the data types and what a mess how to recognize/check them. Honestly? Checking characters? That IS a disgrace for a modern programming language. And a terrible pain.*

[@atmiaesatruemasterisaneter664]

Thanks man, I always wondered why that exists

[@top5things895]

I'm glad you found it helpful!