--- a/rust/hg-pyo3/src/revlog/mod.rs	Fri Jan 03 12:43:52 2025 +0100
+++ b/rust/hg-pyo3/src/revlog/mod.rs	Fri Jan 03 12:44:08 2025 +0100
@@ -52,7 +52,7 @@
         revs_py_list, revs_py_set, PyRevision,
     },
     store::PyFnCache,
-    util::{new_submodule, take_buffer_with_slice},
+    util::{new_submodule, take_buffer_with_slice, with_pybytes_buffer},
 };
 
 mod config;
@@ -376,6 +376,23 @@
         })
     }
 
+    fn raw_text(
+        slf: &Bound<'_, Self>,
+        py: Python<'_>,
+        _node: PyObject,
+        rev: PyRevision,
+    ) -> PyResult<Py<PyBytes>> {
+        Self::with_core_read(slf, |_self_ref, irl| {
+            let mut py_bytes = PyBytes::new(py, &[]).unbind();
+            irl.raw_text(Revision(rev.0), |size, f| {
+                py_bytes = with_pybytes_buffer(py, size, f)?;
+                Ok(())
+            })
+            .map_err(revlog_error_from_msg)?;
+            Ok(py_bytes)
+        })
+    }
+
     fn reading(slf: &Bound<'_, Self>) -> PyResult<ReadingContextManager> {
         Ok(ReadingContextManager {
             inner_revlog: slf.clone().unbind(),