what is r strip function in python

1#!/usr/bin/python
2
3str = "     this is string example....wow!!!     ";
4print str.rstrip()
5str = "88888888this is string example....wow!!!8888888";
6print str.rstrip('8')
7
8#the answer
9
10#this is string example....wow!!!
11#88888888this is string example....wow!!!

1#use the def keyword to declare a function in Python
2def function(args,kwargs='attribute'):
3    #here is the returned value
4    return 'return value'