This fork is slightly edited to pull full release dates, not years, and format them as datetime.
vgchartzfull is a python script based on BeautifulSoup. It creates a dataset based on data from http://www.vgchartz.com/gamedb/
The dataset is saved as vgsales.csv.
You will need to have BeautifulSoup added. It can be installed by pip.
sudo pip install BeautifulSoup
Thanks to Chris Albon. http://chrisalbon.com/python/beautiful_soup_scrape_table.html