Fortunately there is no need to make the indentation rules for a `.py` file explicit, as [they have already been made explicit in PEP8](http://www.python.org/dev/peps/pep-0008/).

Additionally, it isn't standard for Python code to contain a special "end of file" marker, as that's traditionally handled by your editor. Possibly, if you'd like the end of file to be more obvious, `:set number` would be useful?