Python return value

Angela 106 Published: 07/28/2024

Python return value

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Python function return variable

I'll respond in English and provide a Python function with explanation.

In programming, functions are blocks of code that can be reused multiple times in a program. They allow you to group a set of statements together to perform a specific task. In this case, we're going to create a function that returns a variable.

Here's an example of how you could define and use such a function:

def return_variable():
my_variable = "Hello, World!"
return my_variable
result = return_variable()
print(result)

In the above code:

We define a function called return_variable that takes no arguments. Inside the function, we create a variable my_variable and assign it the value "Hello, World!". The return statement is used to specify what value should be returned when the function is called. In the main code, we call the function using the line result = return_variable(). We then print the result using print(result).

When you run this program, it will output:

Hello, World!

Now let's break down what happens when we run this program:

The return_variable function is called. When the function is called, it creates a variable my_variable and assigns it the value "Hello, World!". It then returns the value of my_variable, which is "Hello, World!". In the main code, we assign the result of calling return_variable() to a new variable called result. We then print the value of result, which is "Hello, World!".

By using functions that return variables, you can reuse code and make your programs more efficient.

Here's another example where we use the returned variable in our program:

def get_and_return_variable():
my_variable = "Goodbye, World!"
return my_variable
result = get_and_return_variable()
print(f"I got: {result}")
result2 = get_and_return_variable()
print(f"And again I got: {result2}")

In this code:

We define a function get_and_return_variable that returns a variable. Inside the function, we create a variable my_variable and assign it the value "Goodbye, World!". We then return the value of my_variable, which is "Goodbye, World!". In the main code, we call the function twice using result = get_and_return_variable() and result2 = get_and_return_variable(). We print out the results using f-strings (f"I got: {result}" and f"And again I got: {result2}").

When you run this program, it will output:

I got: Goodbye, World! And again I got: Goodbye, World!

This shows how we can use the returned variable in our program by assigning it to a new variable and then printing out the results.

I hope this helps clarify things! Let me know if you have any questions.