Python Function
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![Function – Defining Rules
• Function defined as: def function_name():
• Any input parameters or arguments should be placed within these parentheses.
• You also can define parameters inside these parentheses.
• The code block within every function starts with a colon (:) and is indented.
• The statement return [expression] exits a function.
• A return statement with no arguments is the same as return None.](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Functions allow for code reusability and modularization. A function is defined using the def keyword followed by the function name and parameters. Functions can take in arguments as inputs and return a value. Variables declared inside a function have local scope while those outside have global scope. Default parameter values can be specified in the function definition.
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