--- a/rust/hg-pyo3/src/lib.rs	Tue Feb 18 11:44:21 2025 +0100
+++ b/rust/hg-pyo3/src/lib.rs	Tue Feb 18 11:45:50 2025 +0100
@@ -7,6 +7,7 @@
 mod exceptions;
 mod node;
 mod path;
+mod repo;
 mod revision;
 mod revlog;
 mod store;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/hg-pyo3/src/repo.rs	Tue Feb 18 11:45:50 2025 +0100
@@ -0,0 +1,21 @@
+use hg::{config::Config, repo::Repo, utils::files::get_path_from_bytes};
+use pyo3::{
+    types::{PyBytes, PyBytesMethods},
+    Bound, PyResult,
+};
+
+use crate::utils::HgPyErrExt;
+
+/// Get a repository from a given [`PyObject`] path, and bubble up any error
+/// that comes up.
+pub fn repo_from_path(repo_path: &Bound<'_, PyBytes>) -> PyResult<Repo> {
+    // TODO make the Config a Python class and downcast it here, otherwise we
+    // lose CLI args and runtime overrides done in Python.
+    let config = Config::load_non_repo().into_pyerr(repo_path.py())?;
+    let repo = Repo::find(
+        &config,
+        Some(get_path_from_bytes(repo_path.as_bytes()).to_owned()),
+    )
+    .into_pyerr(repo_path.py())?;
+    Ok(repo)
+}