pass variable from one function to another python

title: passing variables between functions in python: a step-by-step tutorial
introduction:
in python, passing variables between functions is a fundamental concept that allows you to create modular and reusable code. understanding how to pass variables effectively can enhance the flexibility and readability of your programs. this tutorial will guide you through the process of passing variables between functions with detailed explanations and code examples.
passing variables by argument:
returning values from functions:
using global variables:
the most common way to pass variables between functions is by using function arguments. when you define a function, you can specify parameters, and when you call the function, you pass values for those parameters.
in this example, the greet function takes a name parameter. the main function initializes a variable user_name and passes it to the greet function when calling it. the output will be: hello, alice!
functions can also return values, allowing you to capture the result and use it in the calling code.
in this example, the square function calculates the square of a number and returns the result. the main function captures the returned value and prints it. the output will be: square: 25
global variables are declared outside of any function and can be accessed from any function within the module. while using global variables can be convenient, it is essential to use them judiciously to maintain code clarity.
in this example, the add_to_global function modifies the value of the global variable. the main function then prints the updated global variable. the output will be: global variable: 15
passing variables between functions in python is a crucial skill for writing modular and maintainable code. by understanding the various methods of passing variables, you can design more flexible and efficient programs. whether through function arguments, return values, or global variables, choose the method that best suits your specific ...

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