Lecture 18 - More Python Class Methods

Question 1

Are the 3 expressions below equivalent?

4 * 3
(4).\_\_mul\_\_(3)
int.\_\_mul\_\_(4,3)

Answer 1

Yes, all of them will multiply int 4 by int 3, returning int 12.

The * operator is just a shorthand for the \_\_mul\_\_ special method (multiplication), making Python code easier to write.

Regarding the method call for the first two cases, the int 4 will be passed to self, and the int 3 will be passed as the other argument.

The first two expressions are calls to an instance, whitle the last one is a call to the class itself.