AttributeError: type object Signature has no attribute _encoding

Hi folks!

I'm running into this weird error when running my python code with ray.
Basically I get AttributeError: type object 'Signature' has no attribute '_encoding'.
But it works fine when I run my script without ray...

pygit2 version: v1.12.2
environment: python:3.9.16 docker container.

The error can be reproduced with the code below.
Ray can be installed from PyPi: pip install ray

import pygit2
import ray
from pygit2 import Signature


def function_without_ray():
    org_name = "libgit2"
    repo_name = "pygit2"
    repo = pygit2.clone_repository(
        f"https://github.com/{org_name}/{repo_name}",
        f"/tmp/{repo_name}.git",
    )
    new_branch = repo.branches.create(
        "dummy-branch", repo.revparse_single("HEAD")
    )
    repo.checkout(new_branch)

    index = repo.index
    index.add_all()
    index.write()

    author = Signature("John Doe", "john@doe.com")

    ref = repo.head.name
    tree = index.write_tree()
    parents = [repo.head.target]

    repo.create_commit(
        ref,
        author,
        author,
        "Just a dummy commit",
        tree,
        parents,
    )


@ray.remote
def function_with_ray():
    function_without_ray()

# Comment out one of these function calls to check if it works:
ray.get(function_with_ray.remote())

function_without_ray()

Commencez par exécuter la reproduction fournie dans l’environnement Docker avec Python 3.9.16, pygit2 v1.12.2 et Ray installé depuis PyPI, en comparant l’exécution avec et sans Ray. Suivez le moment où Signature perd _encoding et identifiez un test de régression ciblé ; c’est terminé lorsque le cas Ray reproduit ne lève plus AttributeError.