I understand that. I was suggesting that Python would segway into C in terms of learning paths. Otherwise you go from C and then say "Okay, now forget half of what you learned" since Python has far simpler functions and structures, etc. For example, looping. Python's looping is really basic, and C greatly expands on it. Each level reinforces the next, instead of going from simple, to complex, right back to simple again.

Going from python to C, you can say "Remember those simple loops? Look at how much further you can go with that under C." Each level is additive from what you learned from the prior language, instead of putting low level stuff in the middle, just to return to high level again with limitations now imposed on what you'll learn in the next step.

I would argue that no aspect of python is "up" from C in terms of learning paths.