A main function is used so the file can be imported into a REPL without running as a script, this is what the if statement does. If you did not use if the script would be run at times where you don't want it to …

Oct 28, 2010 · Why does python not support a professional main () function which is automatically executed by python code.py?

Jan 7, 2009 · For questions where someone simply hasn't called any functions, or incorrectly expects a function named main to be used as an entry point automatically, use Why doesn't the main () …

Python runs scripts from top to bottom. def is a statement, and it executes when it is encountered, just like any other statement. However, the effect of this is to create the function (and assign it a name), …

Apr 4, 2011 · I always write a main() function (appropriately named), and put nothing but command-line parsing and a call to main() in the if __name__ == '__main__' block. That's because no matter how …

Nov 2, 2020 · What is best practice to define a main function and entry point for a script/module that may be used started as main, but not always? Here's how I've been doing it in the past, similar to realpytho...

Nov 19, 2020 · Easier to call the "main" function from another script - If you practice this often enough developing packages comes much more natural. But modularity is definitely the biggest thing here, …

Feb 18, 2020 · The OP clearly states he knows what the guard is doing and why we're using it - "This prevents executing statements when you want to import this module into another program." -, what …

Oct 28, 2010 · 213 What is the __main__.py file for? When creating a Python module, it is common to make the module execute some functionality (usually contained in a main function) when run as the …

Jun 15, 2017 · main() Coming from Fortran, I was used to defined functions at the bottom, but I've seen numerous Python scripts where defining them at the top seems to be prefered.