ELI5: What is 'if __name__ == "__main__"' for? : r/learnpython - Reddit
Nov 4, 2017 · There are several special variables or functions in python which start with a double underscore followed by a speaking name followed by a double underscore. These double underscore variables or functions are called dunder for short. One dunder variable is the name of the running module. The variable contains main to indicate that this module is ...
Why do some programmers codes if __name__=='__main__'? - Reddit
However, if this script imports another script, the newly imported script is imported by its actual name and not the name main. The only script names main is the first one you execute. The line you read only runs of the script is the one being ran, which is useful for debugging.
What does if __name__ == "__main__" do in python? Can anyone
Oct 19, 2022 · Any python file that has been executed as a start point will have name variable as name. Code just forces run main() method if it was executed from same file. If you have two py files and other one was executed, then code under if __name__== “main” will not be executed.
Why, if __name__==“__main__”: : r/learnpython - Reddit
May 29, 2022 · The entire Python file is the "main method/function" from other languages. Rather, the name/main spell tells Python to execute that bit only if this is the "primary" module. Reply reply
Understanding Python's __name__ == "__main__" Statement
May 29, 2024 · In Python, the if __name__ == "__main__": statement serves as a conditional check that determines whether a Python script is being executed as the main program or being imported as a module into another script.
What is the point of __name__ == '__main__' in Python programs?
__name__ is a Python's built-in. It tells you the name of the currently active module. Python interpreter needs to know this information in order to resolve unqualified names. In Python, names are qualified with the module name. In other words, if you defined a procedure or a variable foo in a module bar, it's fully-qualified name is foo.bar ...
Understanding if __name__ == ‘__main__’ in Python Programs
Nov 14, 2023 · Well, if __name__ == '__main__': is not some magical keyword or incantation in Python rather it is a way to ensure that specific code is executed when the module is directly executed not when it is imported as a module. What this expression implies is that only when a certain condition is met, further action should be taken.
I wrote a tutorial explaining and demonstrating `if __name__
Mar 15, 2020 · a package consisting of classes and functions in separate python files with a Dunder name/main for each class and function This if __name__ stuff doesn't refer to classes and functions but the file as a whole. One of my real-life examples I gave at the end is a file I wrote called bytestring, which takes integers and turns them into strings ...
How does if __name__ == “__main__” work? I've tried to ... - Reddit
Jun 16, 2023 · - `__name__` is a built-in variable in Python that stores the name of the current module. When a Python file is executed directly, the value of `__name__` is set to `"__main__"`. When the file is imported as a module into another script, the value of `__name__` is set to the name of the module.
What is “ if __name__ == ‘__main__’ “? : r/learnpython - Reddit
It is assigned at runtime, and usually its the name of the Python file that defines the module (module.py has __name__ == 'module'). However, the module that you run python on (something like python script.py from the command line) has __name__ == '__main__' instead. So think of it as "if I ran Python on literally this file, execute this code".