C/C++ memory errors are literally responsible for 70% of ALL critical security bugs. Most python "dumb errors" can be caught by linters. Memory is infinitely harder.
Source -- https://msrc-blog.microsoft.com/2019/07/16/a-proactive-appro...
Source -- https://msrc-blog.microsoft.com/2019/07/16/a-proactive-appro...
Either way, not all software needs to be secure to an adversary (since it's running behind several firewalls and if the attacker has shell access, then it's already game over).
94% python, 5% C - for pypy.