Imports of the form "import *" are considered bad form. Not to mention, why not encapsulate all of that those config variables instead of polluting your global scope and using what look like magic variables. Plus, if you put them in a dict, you can retrieve them and guarantee sane defaults by using the get() method.

cfg.get("SOME_VAR", "sanedefault")
BTW, save for the environment.
os.environ.get(....)