Hi, I am having trouble getting mypy to use a resolve; I have generated a resolve lockfile, but when I try to use it:

[python]
interpreter_constraints = ["CPython>=3.11"]
enable_resolves = true

[python.resolves]
python-default = "3rdparty/python/default.lock"
mypy-resolve = "3rdparty/python/mypy.lock"

[mypy]
install_from_resolve = "mypy-resolve"
requirements =["//3rdparty/python:mypy#mypy"]

I get this error:

11:54:27.07 [ERROR] Invalid option 'install_from_resolve' under [mypy] in /home/kuza/dev/espresso/pants.toml
11:54:27.07 [ERROR] Invalid option 'requirements' under [mypy] in /home/kuza/dev/espresso/pants.toml

had the same issue, I added mypy as dev dependency to python-default in the end and used that resolve

can you explain your solution a bit more (or point to the config)? I'm not sure exactly what adding a dev dependency means

we use poetry to define dependencies, you can define dev-only dependencies (i.e. that are not included in the distributed package)

I see, I guess I am not super clear how the python-default resolve is generated, but I will see if adding a mypy dep explicitly of the version I want works

I think you can define a requirements.txt, a python_requirement to own it and in the latter you specify your resolve

So I think the reason for this is that install_from_resolve was added in 2.16 and I was running 2.15

very possible 😀

Yes, "Invalid option" means the Pants version you're running doesn't recognize the option name at all, regardless of its value.