Support multiple -k like "pytest -k foo -k bar" ?

[wimglenn]

Would like to be able to do pytest -k this -k that. Currently the -k that wins and the -k this gets silently ignored. Before working on an implementation, thought I'd see if can get some consensus in discussions first.

I think the -k should be appended in the argparser and then every one should be intersected during collection, with all / and logic. That seems more intuitive than union with any / or logic (but I could be convinced otherwise).

There were some previous discussions and PRs but they stalled out (e.g. #7229)

[The-Compiler]

Why not just be explicit and use a single -k with a and or or? I see a tiny convenience benefit vs. a ton of drawbacks (ambiguity, making it impossible to override a previous selection, being backwards incompatible in a really subtle way, etc.).

[wimglenn]

Because I didn't know that was possible until you mentioned it 😆

The backwards incompat caused by making it impossible to override is also a good point. I suppose I'll withdraw the proposal based on those points.