Comment by zmgsabst

That’s actually a negative:

My Docker build generating the byte code saves it to the image, sharing the cost at build time across all image deployments — whereas, building at first execution means that each deployed image instance has to generate its own bytecode!

That’s a massive amplification, on the order of 10-100x.

“Well just tell it to generate bytecode!”

Sure — but when is the default supposed to be better?

Because this sounds like a massive footgun for a system where requests >> deploys >> builds. That is, every service I’ve written in Python for the last decade.