What if I am not using pyo3==0.18.3?

[nleroy917]

Hello!

Thank you so much for all the work here! I have a quick question about the extension module.. pyo3-tch. My use case is that I just want to return Python-native torch tensors from a pyo3-built python package/library.

I tried adding pyo3-tch="0.15.0" to my Cargo.toml, but that conflicts a lot with my requirement for pyo3 which I have pinned to 0.21.0 for another crate rust-numpy.

I'm wondering if you have advice here? I'm pretty new to Rust, still learning a lot and getting my bearings so any help is super appreciated!

[LaurentMazare]

Ah that's a good point, I just made #868 to update to pyo3 0.21 and it seems to work all well based on some simple testing.
I won't do a specific release on crates.io for this as pytorch 2.3 is only a couple days away and the PR to support it in tch-rs is already done, so once this is out I'll release version 0.16 for all the crates which will include this pyo3 update.

[nleroy917]

Hey, thanks so much! Not that I anticipate it occurring soon, but wondering what happens if I need to bump my pyo3 in the future?

[LaurentMazare]

We don't have a good story for supporting all combinations of pyo3 and tch. One point to note is that pyo3-tch is really small so you can just embed a copy of it in your code if you need some tweaks like this.

[nleroy917]

Gotcha! Thanks so much for the insight.