Python | pass statement

Control Flow

schedule Jul 1, 2022

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Python has the syntactical requirement that code blocks (i.e. after if, except, def, class etc.) cannot be empty. Empty code blocks are however useful in a variety of different contexts, such as when you are designing a new class with some methods that you don't want to implement yet.


        
        
            
                
                
                    class MyClass():

    def meth_a(self):
        pass
    def meth_b(self): 
        print("I'm meth_b")

If you had left out the pass keyword, the code wouldn't run. You would get the below error:


        
        
            
                
                
                    IndentationError: expected an indented block

To summarize, the pass statement does nothing particular but can act as a placeholder to prevent IndentationError.

Published by Arthur Yanagisawa

Edited by 0 others

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Official Python Documentation

https://docs.python.org/3/tutorial/controlflow.html#pass-statements

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