Horizon Style Commandments

Step 1: Read the OpenStack Style Commandments http://docs.openstack.org/developer/hacking/
Step 2: Read [hacking] section in tox.ini to find the list of names which can be imported directly without triggering the "H302: import only modules" flake8 warning
Step 3: Read on

Horizon Specific Commandments

Read the Horizon contributing documentation at http://docs.openstack.org/developer/horizon/contributing.html