What does python's return statement actually return?

Question

I want to know how we get the value returned by a function - what the python return statement actually returns.

Considering following piece of code:

Answer 1

If you have any doubts you can always go to Python's REPL and experiment with values and functions. There is a type() instruction that can be used with values as well as with functions, for example:

Python 3.6.2 (default, Jul 19 2017, 13:09:21) 
[GCC 7.1.1 20170622 (Red Hat 7.1.1-3)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> def foo():
...     y=5
...     return y
... 
>>> type(foo())

Regarding your foo() function, y is a local binding that holds the value int. return statement returns a value of variable y and this binding is not known outside the foo() function scope.