Need some help with a python web crawler

I did everything right on this tutorial http://www.netinstructions.com/2011/09/how-to-make-a-web-crawler-in-under-50-lines-of-python-code/
but i keep getting this error when i press enter.

"Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
from html.parser import HTMLParser
ImportError: No module named html.parser"

So do i make the html parser or what?

If you are using Python < version 3 it was called HTMLParser.