A library to parse Wayback Machine of archive.org to get a historical views of web pages. It is a useful tool to research on the evolution of web pages, page structure analysis, and among other interesting topics.
I tried just running the crawler.py file, using the main associated with it, and got a similar error. I installed the latest versions of lxml and html5lib for python before I used it.
AttributeError: 'NoneType' object has no attribute 'find'