Comment by zahlman
1 day ago
Fair. (You can `.getbuffer` but you still have to keep the underlying BytesIO object "open" somehow.)
I'm not convinced this is going to bottleneck things, though.
(On the flip side, I guess the OS is likely to cache any disk write in memory anyway.)
I’m just a casual observer of this thread, but I think you’d find it worthwhile to read up a bit on zero-copy stuff.
It’s ~impossible in Python (because you don’t control memory) and hard in C/similar (because of use-after-free).
Rust’s borrow checker makes it easier, but it’s still tricky (for non-trivial applications). You have to do all your transformations and data movements while only referencing the original data.