What are some examples of return values in Python?

What are some examples of return values in Python?

In Python, a return value is the value that a function sends back to the caller. For example, consider this function:

def add(a, b):
    return a + b

Here, the function add returns the sum of a and b.

Can you show me more examples?

Sure! Here's another example:

def square(x):
    return x * x

This function returns the square of the input x.

What happens if a function doesn't have a return statement?

If a function doesn't have a return statement, it returns None by default. For example:

def greet():
    print('Hello!')

Calling greet() will print 'Hello!' but return None.

Can return values be of different types?

Yes, return values can be of any type, including integers, strings, lists, or even other functions. For example:

def get_info():
    return 'Alice', 30

This function returns a tuple containing a string and an integer.