Hm, while the python style guide is interesting and contains good advices, I am missing a reference to PEP8.
Note that this differs from PEP8 and instead follows the original Google Python Style guide from which this style guide originated.
Indent your code blocks with 2 spaces.
I'm pretty sure these are the coding standards for code released outside of Google. For various disgusting historical reasons Python written internally spits in the face of PEP8 naming conventions. (And other weird niggles.)