A line holds only whitespace, probably with a comment, is identified as a blank line, and Python completely avoids it.
In an interrelated interpreter session, you need to enter an empty physical line to terminate a multiline statement.
The following line of the program displays at the appointed time, Press the enter key to exit. Waits for the user till that time when key press Enter.
#! /usr/bin/python
raw_input ("\n\press the enter key to exit.")
At this time "\n\n" is being utilized to make two new lines before displaying the real line.
One time the user presses the key, the program stops. This is a nice trick to remain a console window open awaiting the user is done with an application.