neil12:
As I understand it the benefit of pyhton is the ability to process text strings.
So for interfacing over USB to an instrument or external module there would be an easier capability to manage the input and output.
However, I don't think it replaces C++. The C++ is the machine control environment and implement the drivers and management.
So the down side is more resources - ram and flash.
Actually it has many benefits - plus many limitations, particularly in being close to the hardware etc.
That is why the best solution can sometimes be a combination of Python and C/C++.