I'm sorry, but this generalization is false enough of the time to be misleading. 99% (this might be conservative) of the OS/WM is exposed by Python bindings. I use well written Python scripts that are quick, and more robust and reusable than their C/C++ counterparts to do real work on my tablet and desktop. Big or small doesn't matter if you leave the obvious heavy lifting to the OS/WM/other*. Relative to the work load, high level heavy logic can be handled quickly by good Python code. The conductor doesn't play the instruments. So, generally, I disagree. *any other Python bound shared library
Relative to the work load, high level heavy logic can be handled quickly by good Python code.