python basic functions
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in python, functions are blocks of reusable code that perform a specific task. they help in organizing code, making it more modular, and promoting code reusability. in this tutorial, we'll cover the basics of python functions with code examples.
to define a function in python, use the def keyword followed by the function name and parameters. the function body is indented.
in the example above, we defined a function called greet that takes a parameter name and prints a greeting.
functions can take zero or more parameters. parameters are placeholders for values that will be passed when the function is called.
here, the add_numbers function takes two parameters x and y, adds them, and returns the result.
functions can return a value using the return statement. this value can be assigned to a variable or used directly.
in this example, the multiply function returns the product of two numbers.
you can assign default values to function parameters. if a value is not provided when the function is called, the default value will be used.
in the power function, the exponent parameter has a default value of 2. if an exponent is not provided, it will default to 2.
variables defined inside a function are local to that function, meaning they cannot be accessed outside the function.
in this example, the variable x is local to the my_function and cannot be accessed outside of it.
this tutorial covers the basic concepts of python functions. as you become more familiar with python, you'll encounter more advanced features and concepts related to functions. practice and experimentation are key to mastering python functions and programming in general.
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