Understanding if __name__ == “__main__” in Python | Python Main Function with Examples
In this Python Tutorial for Beginners video I am going to show you the Idea behind using : if _name_ == "__main__" in Python. _name_ is a built in variable in Python. the value of _name_ is set to "__main__" at runtime. Each module has a name, and this name can be used to access instructions in a module. This is especially useful in a given situation: As mentioned before, the main block of a module is executed when it is imported for the first time. But what do we do if we want the block to run only if the module was started as a stand-alone program, but not if it was imported from another module? We can do this by evaluating the attribute _name_ of the module.
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