Python files: Nested function should be indented.

[stefansimik]

Hi, I found not optimal behavior in this great plugin, I use every day.

Nested functions are displayed as any other functions, despite, they are just helper 2nd-level things, that cannot be called / invoked alone.

They should be clearly indented, to show they are nested function.

One screenshot says it all:

[hottwaj]

the same issue comes up with nested classes (within other classes, functions)