Can you enumerate the languages that you deem "real" and those you don't? I have a very hard time understanding what meaning you give to that word.
C, C++ are the main ones.
Understood, no need to argue then, I don't think any amount of proof would change your mind...
You know the rule, 99% of everything is crud.
Rewriting it in C++, leveraging the platform-specific APIs for disk I/O (sync_file_range on Linux, not even wrapped by a Python module) would yield not only much better performance, but also much higher reliability.
As it is this daemon is a recipe for page thrashing. Not that I would expect a Python dev to actually know how a kernel works.
You ship C code which is extensively tested by Python code.
Python is simple to use, got good C interop and the performance of your test frameworks hardly matters.
It takes a lot of effort to make a Python program not break on some inputs, so it's not really fire and forget like it is with C++. It's possible but it requires many more iterations.
Seriously questionable assertion to my eyes. Maybe I just haven't used C++ in way too long to appreciate that it's true. I have heard lots of people say that modern C++ is really great.