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

At the interactive interpreter, Python will print the repr of expression values (except None) as a convenience. In a script, you have to print manually, as automatic printing would be highly awkward to work around in a script.