Change tox.ini
to follow external command rules for tox 4.x
#820
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Our Github Actions runners have recently stopped installing
tox==3.28
and started testing withtox=4.0.16
. See #819 for details on this.This means that our
tox
workflow is now failing because of the use of thesh
command within thetox.ini
. Withtox 4.x
, this command must be added to theallowlist_external
in the tox environment.This PR makes that change.
I also tested this
tox
configuration file with 3.28 locally and it appears to work. So we should be safe in the unlikely event that the GA runner happens to try running 3.28 again.