A Python module is an external class or set of functions that exist outside the main file of your program. This can be something that you built yourself, or it can be provided by the community.

The if __name__ == "__main__": statement checks if the script is being run as the main program. If it is, it calls the greet() function with the name "Alice". If this script were imported as a module ...

how its garbage collection system helps optimize memory in Python programs, and how to use the modules available in the standard library and elsewhere to control memory use and garbage collection.

When you run the Python interpreter, the main environment context is stored in the __main__ module's namespace dictionary. All functions, classes and variables that are defined globally can be found ...

Learn which Python standard library modules are headed for the boneyard in Python 3.13, and how to replace them. Python’s been around in one form or another for over 30 years. Over that time ...

For instance, if a developer were to accidentally use a rogue pseudo-random number generator instead of Python's official secret module, an app's cryptographic functions might be easy for ...