Hi all, I'm trying to use rtx with pants.toml, but I seem to be running into this error:

pants tailor ::
17:58:38.15 [INFO] Initializing scheduler...
17:58:39.88 [INFO] Scheduler initialized.
17:58:39.91 [ERROR] 1 Exception encountered:

Engine traceback:
  in `tailor` goal

IntrinsicError: Failed to read link "/Users/andrew/Work/Code/projects/hillfilter/hillfilter/venv/bin/python": Absolute symlink: "/Users/andrew/.local/share/rtx/installs/python/3.12.1/bin/python"

Anyone have any thoughts on how to resolve for pants 2.18?

can you describe a little more what your setup (and rtx) is? 🙂

.rtx.toml (rtx is like asdf)

[tools]
node = ['20.10.0']
python = {version='3.12.1', virtualenv='venv'}

pants.toml:

[GLOBAL]
pants_version = "2.18.1"
pants_ignore.add = ["!venv/"]

backend_packages = [
    "pants.backend.python",
    "pants.backend.python.lint.pyupgrade",
    "pants.backend.experimental.python.lint.ruff",
    "pants.backend.python.typecheck.mypy",
]

[source]
root_patterns = ["src/python"]

[python-bootstrap]
search_path = ["<PATH>"]

[python]
enable_resolves = true
default_resolve = "pyresolve"

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

I tried running this in a clean slate repository with just a dir tree:

src
   python
      project
          pyproject.toml

I don't have any dependencies listed here.

Have you tried to let pants ignore your

venv

path? Pants does not like working with symlinks that escapes your project...

Yes,

pants_ignore.add = ["!venv/"]

is that correct?

drop the

!

Absolute hero. It works 😭 Tysm

you're welcome 🙂

> Pants uses PEX as a tool to manage python requirements.. so installing requirements involves creating a

.pex

file with all the requirements in it. Is that interoperable with our existing pyproject.toml and existing virtualenv?

pants can use your

pyproject.toml

to know which requirements you use, but it will manage it's own venv

I see; do users typically use pants as a task runner in that case?

pants is typically used to run stuff like formatters/linters/typechecking and tests as well as packaging and publishing. The one main reason to still have a venv around for your project is to get proper IDE integration, I think.. which you get with

pants export