install from location other than pypi.org

[nschloe]

In my tox tests, I would like to install pyvista from

pip install --find-links https://wheels.pyvista.org/ pyvista

(This is necessary because it provides a native VTK Python 3.10 wheel which VTK upstream doesn't yet.)

How can I do this in my tox.ini?

[jugmac00]

Is pyvista your only external dependency? I assume not 😉

[nschloe]

You're right, it's not.

[jugmac00]

It is not like I needed that before but it should work like this:

• create a dedicated requirements.txt file for pyvista only
• add the index url on the first line, see https://stackoverflow.com/a/2477610/672833
• add pyvista on the second line
• in your deps section add one line as following -r requirements.txt

Untested, but this should do.

Alternatively you could use commands_pre to install the single dependency via python -m pip install....

I am not near my laptop so both suggestions are untested.

Please report back whether the one or the other solution worked. If not I'll try find a solution tomorrow.

[nschloe]

I'm using commands_pre, thanks for the tip!