Setting Parallel values in tox.ini rather than at the command line level

[AidanJohnston]

Hello,

Is it possible to set the parallel value inside tox.ini? Looking through the documentation there is no mention of a parallel option -- only a CLI argument.

Something like

[tox]
parallel = auto
parallel_live = true

Of course this can be set when calling tox with tox --parallel 0 and could be abstracted to something like a Makefile rule but I would like to be able to set it at the tox.ini level.

[gaborbernat]

Parallel execution is CLI-only — there is no tox.ini configuration for it. The intended way is via the CLI: tox run-parallel or tox run --parallel.

If you want a default, use a shell alias, a Makefile target, or a scripts section in your pyproject.toml (e.g. via hatch or similar).