SQLite:

http://www.blog.pythonlibrary.org/2012/07/18/python-a-simple-step-by-step-sqlite-tutorial/

http://sebastianraschka.com/Articles/2014_sqlite_in_python_tutorial.html

http://stackoverflow.com/questions/7011291/how-to-get-a-single-result-from-a-sqlite-query-in-python

http://stackoverflow.com/questions/6318126/why-do-you-need-to-create-a-cursor-when-querying-a-sqlite-database



https://docs.python.org/2/library/pickle.html#module-cPickle


https://github.com/mstamy2/PyPDF2/blob/master/Sample_Code/basic_features.py