I tried it in Emacs. Your definition of correct does not agree with mine.
If you draw a line parallel to the left-hand edge of your monitor down from the character that the cursor is currently over, it should touch the character that "next-line" will move to. That is not what happens when you use a proportional font in Emacs. (If you are on the 10th character of the line, you will move to the 10th character of the next line.)
What happens makes mathematical sense, but Emacs is a visual editor. Programmed text editing is nice, but sometimes you notice a visual property of the source code, and would like to exploit that instead of some lexical property. Visual editing lets you do this, but proportional fonts destroy this ability.
Anyway, sorry to hear about the Python style guidelines. If I did Python, I would ignore that one. (Haskell is whitespace-sensitive and allows you to align similar constructs. So this is just a Python thing.)
If you draw a line parallel to the left-hand edge of your monitor down from the character that the cursor is currently over, it should touch the character that "next-line" will move to. That is not what happens when you use a proportional font in Emacs. (If you are on the 10th character of the line, you will move to the 10th character of the next line.)
What happens makes mathematical sense, but Emacs is a visual editor. Programmed text editing is nice, but sometimes you notice a visual property of the source code, and would like to exploit that instead of some lexical property. Visual editing lets you do this, but proportional fonts destroy this ability.
Anyway, sorry to hear about the Python style guidelines. If I did Python, I would ignore that one. (Haskell is whitespace-sensitive and allows you to align similar constructs. So this is just a Python thing.)