I did not know this before... Google protobuf is not one thing, it is three! Same import, but:
reply* old C++ extension
* upb
* pure Python
upb parses FAST, but then every access is still C->Python and it slows it down. So for many reads the slow python one can win?
This one helped me to dig deeper - https://vectree.io/c/how-python-protobuf-runtimes-work-pure-...
> upb parses FAST, but then every access is still C->Python and it slows it down. So for many reads the slow python one can win?
replyThat is pretty unlikely. TFA's version is in Rust and just barely edges out upb.