Find and print the number of non-alphanumeric characters. Find and print the number of non-alphanumeric characters. The first thing to do when doing a pattern search is to import the module re which provides full support for regular expressions in Python. This has already been provided in the code to the left. Provided for you on the left is the lorem_ipsum string. lorem_ipsum is the string you will be using to change as you go through the programming activities in this course unit. Find all of the instances of non alphanumeric characters in the string assigned to lorem_ipsum.