How to tell tox to use PyPI mirrors for installing packages?

Question

Is there a way to tell the tox test automation tool to use the PyPI mirrors while installing all packages (explicit testing dependencies in tox.ini and dependencies from setup.py)?

For example, pip install has a very useful --use-mirrors option that adds mirrors to the list of package servers.

Answer 1

Since indexserver is deprecated and would be removed and --use-mirrors is deprecated as well, you can use install_command (in your environment section):

[testenv:my_env]
install_command=pip install --index-url=https://my.index-mirror.com --trusted-host=my.index-mirror.com {opts} {packages}