main/py3-tox: add missing dependency
Before this change:
$ dabuild sh
$ sudo apk add py3-tox >/dev/null && tox --version
Traceback (most recent call last):
File "/usr/bin/wheel", line 6, in <module>
from pkg_resources import load_entry_point
ModuleNotFoundError: No module named 'pkg_resources'
This change adds py3-setuptools as a runtime dependency because pkg_resources is imported by a file installed into /usr/bin/:
$ grep pkg_resources /usr/bin/tox
from pkg_resources import load_entry_point
pkg_resources is part of py3-setuptools:
$ apk info -L py3-setuptools | grep pkg_resources/__init__.py
usr/lib/python3.8/site-packages/pkg_resources/__init__.py
After this change:
$ dabuild sh
$ sudo apk add py3-tox >/dev/null && tox --version
3.14.6 imported from /usr/lib/python3.8/site-packages/tox/__init__.py