docstrings

Info:

Docstrings is a documentation string that you put as the first lines in a code block, for example, a function.

The docstrings begin with triple quotes ( """ ) and ends with triple quotes ( """ )

There are two types of docstrings:

Here's an example of a one line docstring:

def quicksort(): 
""" sort the list using quicksort algorithm """

Warning

There should be NO blank lines either before or after the docstrings.