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Unlike other languages, there's no main() function that gets run automatically - the main() function is implicitly all the code at the top level. In this case, the top-level code is an if block. __name__ is a built-in variable which evaluates to the name of the current module.
Learn how to use the if __name__ == "__main__" idiom in Python to control code execution in scripts and modules. Find out when to use it, when to avoid it, and how to simplify it.
Before executing code, Python interpreter reads source file and define few special variables/global variables. If the python interpreter is running that module (the source file) as the main program, it sets the special __name__ variable to have a value "__main__". If this file is being imported from another module, __name__ will be set to the module's name. Module's name is available as ...
Learn how to use if __name__ == __main__ to check if a Python file is run directly or imported. See how to execute functions and modules with different scenarios and conventions.
Python sets this variable to the module name, which Python's import system uses to identify each module uniquely. However, if the module is in the top-level code environment, which means it's the module used as the entry point for the program, Python sets the attribute __name__ to the string "__main__". Let's look at some examples.
Python main function determines how the Python scripts are executed. Learn about the Python main function, applications, and examples here.
This article explains the meaning and usage of if __name__ == '__main__', which is commonly found in Python code. At first glance, the underscores might seem confusing, but it is simply an if statement that instructs the program to "execute the following code if the value stored in __name__ is the string '__main__' ". Python if statements (if, elif, else) Understanding the meaning of __name__ ...
Learn how to use the special variable __name__ to execute code only when a Python file is run directly, not when it is imported as a module. See examples, explanations and a video tutorial on this topic.
Learn how if __name__ == '__main__': works in Python, its role in script execution, and best practices with examples.
Python, known for its simplicity and readability, harbors a small snippet of code that, despite its frequent appearance in scripts worldwide, often puzzles newcomers: if __name__ == '__main__':. This line, far from being mere boilerplate, is a powerful construct that offers control over your code's execution. Let's demystify this secret and uncover the power and