python 3 fixes for other submodules, some pep8

[kavdev]

No description provided.

[aburgel]

this looks like a less extensive set of changes than #66. i don't use python 3 so i don't know what changes are necessary. can you let me know whether i should merge both PRs?

[kavdev]

The changes in #66 uses 2to3 to automatically alter the code to work with python 3, including 3.0 and 3.1.

1. It's become convention to target 3.2+ to avoid dealing with the screwy api of 3.0 and 3.1
2. Some of the changes made aren't backwards compatible.

That being said I missed a few things like iteritems() calls. I'll update this PR tomorrow.

[kavdev]

should be all set. sorry it took so long.