```toml

[sharp viper]

the option is an array

[still rose]

ah

RuntimeError: failed to find interpreter for Builtin discover of python_spec='None'

full traceback if you care, but i think i'm going to stick with external for now

[still rose]

so i'm setting the external sources, and i don't have python 3.10 installed externally yet the matrix still runs 3.10, im guessing because it uses the python hatch downloads, is there a way to avoid this and just skip 3.10 instead?

[still rose]

okay, removing all hatch installed pythons causes the intended effect

[still rose]

❯ pyenv versions
  system
  3.8.19
  3.9.19
  3.10.14
* 3.11.9 (set by /home/azureuser/.pyenv/version)

main.py3.9-standard 
...
RuntimeError: failed to find interpreter for Builtin discover of python_spec='None'
``` the error is a bit confusing but really it's failing to find python 3.9 installed by pyenv, but it manages to find 3.10 and 3.11 just fine, not sure what to do there

[sharp viper]

is it available globally?

[still rose]

should be, i even explicitly make it global via pyenv global 3.9.19 wich makes it the default python

[sharp viper]

can you use virtualenv directly and use py3.9 as the Python version?

[still rose]

yes, it's detected then.

[sharp viper]

are any of these conditions true? https://github.com/pypa/hatch/blob/3adae6c0dfd5c20dfe9bf6bae19b44a696c22a43/src/hatch/env/virtual.py#L388

[still rose]

they are not

[sharp viper]

I'm not sure at the moment without stepping through the code and adding print statements/logs

[still rose]

okay, i'll see what i can come up with, what's the suggested installation method on linux? currently it's installed via pipx

[still rose]

reinstalling hatch and pyenv got things working again, welp

wait no, i think i got a reproducer

[still rose]

yeah no i'm still lost, where would i add debugging prints in order to figure things out?