Add python option to _.python.venv

[sbidoul]

When working in a virtual environment, it is sometimes useful to have the other global pythons to remain available.

For instance, when in a project directory with, say, a python 3.12 venv active, I sometimes need to run tox -e py310 to run tests with another version.

When the global pythons are managed with mise and tools.python is set, the other global pythons are not available.

A possible solution would be to have python as an option of _.python.venv that would be used over tools.python which could then be absent.

Assuming that makes sense and fits with the path you are following, of course.

[jdx]

wait is this accurate?

When the global pythons are managed with mise and tools.python is set, the other global pythons are not available.

assuming you did mise u -g python@3.12 then you should still have /usr/bin/python310 on PATH so they should be there for tox

[sbidoul]

@jdx This is what I observe with 2024.11.37 so yes it seems a local tool.python disables all global pythons, where I would naively expect it to take precedence over globally defined ones.

$ mise use -g python@3.13 python@3.12 python@3.11 python@3.10 python@3.9 python@3.8 python@3.7 python@3.6 python@2.7
$ mise list
Tool        Version  Config Source              Requested
python      2.7.18   ~/.config/mise/config.toml 2.7      
python      3.6.15   ~/.config/mise/config.toml 3.6      
python      3.7.17   ~/.config/mise/config.toml 3.7      
python      3.8.20   ~/.config/mise/config.toml 3.8      
python      3.9.20   ~/.config/mise/config.toml 3.9      
python      3.10.15  ~/.config/mise/config.toml 3.10     
python      3.11.10  ~/.config/mise/config.toml 3.11     
python      3.12.7   ~/.config/mise/config.toml 3.12     
python      3.13.0   ~/.config/mise/config.toml 3.13     
$ cd /tmp/misetest
$ cat mise.toml
[tools]
python = "3.10"

[env]
_.python.venv = { path = ".venv", create = true }

$ mise list
Tool        Version  Config Source              Requested
python      2.7.18                                       
python      3.6.15                                       
python      3.7.17                                       
python      3.8.20                                       
python      3.9.20                                       
python      3.10.15  /tmp/misetest/mise.toml    3.10     
python      3.11.10                                      
python      3.12.7             
$ which python3.10
/tmp/misetest/.venv/bin/python3.10
$ python3.11
Command 'python3.11' not found,