[bug] Tomllib import fails

[afkfr0mkeyb0ard]

Describe the bug
The tomlib import fails depending on the Python version, in objection/init.py

Evidence / Logs / Screenshots
The line 5 in objection/__init__.py:

import tomllib

should be replaced with

try:
    import tomllib
except ModuleNotFoundError:
    import tomli as tomllib

Environment (please complete the following information):

• Python: 3.10.12

[potato-20]

The root cause is that objection/__init__.py imports the stdlib tomllib, which only exists on Python 3.11+, while pyproject.toml currently declares requires-python = ">=3.10". So installs succeed on 3.10 but import objection then crashes with ModuleNotFoundError: No module named 'tomllib'.

There are two ways to resolve this:

1. Add a tomli fallback for <3.11 — this was proposed in Fix Python 3.10 compatibility by falling back to tomli #797, but @leonjza was (understandably) hesitant to carry a compatibility shim for a version nearing EOL, and it was closed.
2. Bump requires-python to >=3.11 — resolves it in the direction that discussion pointed: no extra dependency, and 3.10 users get a clear rejection at install time instead of a confusing import crash later.

I have a small PR ready for option 2 (one-line requires-python change + regenerated uv.lock, which drops the now-unused tomli/exceptiongroup backports). Verified: imports fine on 3.11/3.12, and uv/pip cleanly reject 3.10 with incompatible with the project's Python requirement: >=3.11.

Happy to open it if that aligns with your version policy — or if you'd rather keep 3.10 support, I can switch to the tomli fallback instead. Which would you prefer?

[IPMegladon]

Heya @potato-20, apologies I'm only getting to this now. You are welcome to open a PR for the python3.11 version requirement if you still have it - otherwise Ill just have copilot do it.

[potato-20]

Thanks @IPMegladon for getting this merged! The Python >=3.11 requirement is now live via #806. 👍

[potato-20]

Thanks @IPMegladon for getting this merged! The Python >=3.11 requirement is now live via #806. 👍