wasmtime-py 13.0.0, 13.0.1 breaks compatibility with Python 3.7, 3.8, 3.9

[whitequark]

See these failing jobs: https://github.com/YoWASP/runtime/actions/runs/6255807281/job/16985710642

Not sure if this was intended? README still advertises compatibility with Python 3.6.

[thewtex]

Ditto: https://github.com/InsightSoftwareConsortium/itk-wasm/actions/runs/6260583788/job/16998907548?pr=948

[thewtex]

Proposed patch in #190

wasmtime-py 14

I think wasmtime-py 13 was meant.

[alexcrichton]

Ok Wasmtime 13.0.1 is now published, but let me know if that's still broken!

[whitequark]

@alexcrichton Nope, still failing: https://github.com/YoWASP/runtime/actions/runs/6268809144/job/17024332491

I feel like the wasmtime-py project ought to run CI on the Python versions it claims to support.

[whitequark]

I've also updated the title to be a bit more precise.

[alexcrichton]

I'm no Python expert myself so you can see me flailing around on #192 trying to get something working. Right now I'm at the point where Protocol doesn't exist in 3.7. I'm not sure if there are more issues but it's as far as I've gotten.

Protocol is used by generated bindings for the component model, so it wasn't broken in the last release or anything like that. I think I may have fixed the issues that broke compat in the last release. Does anyone know how to only run a subset of tests on Python 3.8+? Ideally the codegen tests would all be disabled in 3.7 to sidestep the Protocol issue.

Apparently GitHub actions doesn't have Python 3.6 for the Ubuntu 22.04 image so I chose 3.7 as the minimum version.

[whitequark]

Does anyone know how to only run a subset of tests on Python 3.8+? Ideally the codegen tests would all be disabled in 3.7 to sidestep the Protocol issue.

This maybe?

Apparently GitHub actions doesn't have Python 3.6 for the Ubuntu 22.04 image so I chose 3.7 as the minimum version.

No problem for me; I'll bump up the YoWASP runtime version then.

[alexcrichton]

Hm I realize now that this is not only in tests but also the wasmtime.bindgen module which I don't necessarily know how to prevent pytest from loading for just 3.7. Given this run though it looks like 3.8 passes tests.

@whitequark is it a problem if the minimum version is raised to 3.8?

[whitequark]

I think that's fine; Python 3.7 will reach end of life in October anyway.

[alexcrichton]

Ok cool, with CI now in place #192 I think fixes this and I'll publish as 13.0.2 in #193

[whitequark]

Thanks! I've published an updated YoWASP runtime, it passes tests fine.