pip install -e .[dev] not working

[swelborn]

Steps to reproduce:
follow dev install instructions on docs (ran pip install -e .[dev], not pre-commit install)

conda env create also got hung up installing the dependencies.

[ianhi]

Is this in a fresh conda environment? and what python version? Looking at the bleach it seems that their last release was prior to supporting python 3.10, so i would try again with python = 3.9