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What is the purpose of the if name == 'main': guard?

A To run code only when the file is executed directly, not when imported
B To define the program entry point required by Python
C To prevent syntax errors
D To mark the file as executable

Answer

To run code only when the file is executed directly, not when imported

Without it, importing a module would execute its script-level code as a side effect, which also breaks multiprocessing on some platforms.

All Python MCQs

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