11/11/2023 0 Comments Blender python 3![]() If the _name_ = "_main_" expression is True, then the indented code following the conditional statement executes.Remove ads How Does the Name-Main Idiom Work?Īt its core, the idiom is a conditional statement that checks whether the value of the variable _name_ is equal to the string "_main_": ![]() Read on to learn more about the name-main idiom, as this tutorial will refer to it for short. Still, there’s more to find out, and there are some subtleties that can help you build a deeper understanding of this code specifically and Python more generally. There you go! You’ve now covered the most important information about this topic. You provide echo() to the main code session without any side effects.īy implementing the if _name_ = "_main_" idiom in your code, you set up an additional entry point that allows you to use echo() right from the command line. Module: When you import echo as a module, then echo() gets defined, but no code executes.Script: When run as a script, your code prompts the user for input, calls echo(), and prints the result.Nesting code under if _name_ = "_main_" allows you to cater to different use cases: When you nest the code that’s specific to the script usage of your file under the if _name_ = "_main_" idiom, then you avoid running code that’s irrelevant for imported modules. Running input() would mess with your code by producing a side effect when importing echo. In this case, you want to use echo() in the context of another script or interpreter session, so you won’t need to collect user input. from echo import echo > print ( echo ( "Please help me I'm stuck on a mountain" )) ain in n.
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