Why doesn't Python print return values?

Question

I\'m taking a class in Algorithms and Data Structures (Python). In the book there is an example of a \"stack\" with methods that return certain values. In the book, these values

Answer 1

You can either

s=Stack()
s.push(5)
print s.size()
print s.isEmpty()
print s.peek()

or replace your return statements with print.