Style Guide for Python Code

http://www.python.org/dev/peps/pep-0008/

The Zen of Python (http://www.python.org/dev/peps/pep-0020/ )

code is read much more often than it is written.

improve the readability of code

Code lay-out

Use 4 spaces per indentation level.

spaces only > tab only > mixed space and tab

Limit all lines to a maximum of 79 characters.