Feature/pep8 compliance

Hi there. I've been using this library for a little while now and think it's great. I saw that you had an open issue to update the code for PEP-8 compliance and I thought I could help you out. I used a combination of PyCharm's builtin inspections and the pep8 module directly. PyCharm has the preferred line length set at 120 instead of 80. Django can get so long on a line that 80 just seems cramped. Thanks for your work!