You are using Python 2 and the book author is using Python 3.
In Python 2 input
tries to evaluate the entered value, so the string '21'
actually becomes 21
as an int
.
As @Siddharth pointed out in the comments, str > int
will always evaluate to True
in Python 2. In Python 3 it will raise the error that is mentioned in the book.
8
solved Python Crash Course : Using int() to accept numerical input