Okay, hmm... I'm not sure what interaction is doing this or what I'm missing, but 2.11.0rc0, python interpreter_constraints = ["CPython==3.9.*"], system python is 3.10, pyenv enabled "local" python is 3.9.9, I'm in a virtualenv is 3.9.9, and ... ...lockfile generation consistently fails because it's using 3.10 (system python)...?

stderr:
ERROR: Package 'aiofiles' requires a different Python: 3.10.2 not in '<4.0,>=3.6'

...neither of which makes sense to me (it shouldn't be resolving with 3.10, and 3.10.2 is in fact between 3.6 and 4.0...)