Python pass

The pass keyword in Python acts as a placeholder in code blocks (like functions or loops) where no action is required. It prevents syntax errors when a statement is needed but no operation should occur.

Syntax

def function_name():
  pass

The pass statement is written in lowercase and is often used inside a function, class, loop, or conditional block.

Note: Using incorrect casing like Pass or PASS will result in a SyntaxError.

Example

In this example, the sum() function is defined but its logic is not yet implemented:

def sum(a, b):
  pass  # actual logic is yet to be implemented

print(sum(5,6))

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When called, this function returns None because no return statement is defined.

Codebyte Example

In real projects, developers use pass as a temporary placeholder in unfinished functions to keep the program running without errors:

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