CONTRIBUTING.md

Before making a pull request, please follow these steps:

1. If you are adding a new feature, open an issue explaining what you want to add.
2. Use pycodestyle or something similar to check for PEP8 compliance.
3. Create new tests for your new code and pass the existing tests by calling nosetests on the tests directory. Remember to target both python 2.7 and 3.x.
4. Document your code with reST. We use Sphinx to generate our documentation.