Support for Python 3.11

[jonbarker68]

Currently appear to be two external dependencies blocking upgrade to 3.11: pytorch and numba

• pytorch: Nightly build of pytorch currently runs on 3.11 but I think best to wait until pytorch 2.0 release due in early March.
• numba: a Python 3.11 compatible version is due this month, see discussion here

Plan to test against Python 3.11 as soon as these are released

[jonbarker68]

Update:

• pytorch 2.0 is now out and supports Python 3.11. But it does seem to be leading to significant changes in test results. Needs some investigation.
• numba - sounds like it will still be another week or two

[jonbarker68]

Latest numba on github is supposed to support Python 3.11

pip install git+https://github.com/numba/numba.git

But it has llvmlite v0.40.0dev0 as a prerequisite

pip install git+https://github.com/numba/[email protected]

On the mac this has further issues see discussion (here)[https://github.com/cvxgrp/pymde/issues/49]

brew install llvm@11
LLVM_CONFIG="/opt/homebrew/Cellar/llvm@11/11.1.0_4/bin/llvm-config" arch -arm64 python3 -m pip  install git+https://github.com/numba/[email protected]

(Note, require llvm@11, the llvmlite build states "Building llvmlite requires LLVM 11.x.x")

But this still fails with a lot of "Undefined symbols for architecture arm64"

Might have to wait a bit longer for a numba release on PyPI