[d0mine]

> a lot of consecutive work It might depend on your specific domain but most performance problems I've encountered are in this class i.e., I have the opposite experience: cases when performance problems can't be solved because Python is used are rare.

--- On reproducible builds: given your examples from other languages, Python has such tools too e.g., pip-tools package.

[throwaway894345]

That’s what I’ve heard but I’ve been burned by a lot of tools that have promised reproducible builds for Python. They always fail critically for one reason or another. If piptools is the holy grail, then great, but I’ll wait until it’s ubiquitous in the ecosystem.