Newbie question: when running

pants_from_source

to test changes, is interpreter constraint

==3.9.*

somehow added? I've been building with

==3.10.*

and its been working fine on 2.13 rc, but running from source is failing because of conflicting constraints

Pants must itself run on >=3.7,<3.10 so that's coming in conflict there.

so I have both 3.9 and 3.10 on PATH, and when running pants prod version, it worked out ok

The difference here is you're using Pants from sources. We don't have that setup to handle multiple resolves, which I think is what you'd need here.

I see. Thanks. Not a blocker for now, I can adjust to 3.9 and test my changes

If you can do that, definitely best for now.

wait is this for a pants plugin? generally the version of Python used to run Pants != the version used for your own code, except for Pants plugins

A plugin may or may not be involved. This is using pants from sources.

It should. It simply runs our

./pants

bash script from

pantsbuild/pants

, which can be a different Python version than

[python].interpreter_constraints

https://github.com/pantsbuild/example-python/blob/main/pants_from_sources#L23