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Description
Explore how Python facilitates code reuse by using functions in this video course which shows learners how to define functions learn passing arguments to functions and returning values from functions The functions you will examine change the state of the program may have side effects and have observable effects other than their return values Since functions with side effects are hard to parallelize and use in a distributed environment you will learn correct ways of returning values from functions First you will learn how to invoke functions by using both positional and keyword arguments You will next work with positional input arguments in custom functions and learn that these are required arguments and how to order these arguments to invoke your function You will next learn to use variable length arguments in defining custom functions Finally you will learn how keyword arguments or named arguments are a way to make the intent behind function invocation absolutely explicit and help prevent bugs in programs that are especially hard to detect
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