diff --git a/packages/cubejs-backend-native/src/cross/clrepr_python.rs b/packages/cubejs-backend-native/src/cross/clrepr_python.rs
index f984c330f9b8a..9712206845cc9 100644
--- a/packages/cubejs-backend-native/src/cross/clrepr_python.rs
+++ b/packages/cubejs-backend-native/src/cross/clrepr_python.rs
@@ -193,9 +193,10 @@ impl CLRepr {
         Ok(match self {
             CLRepr::Object(obj) => Self::into_py_dict_impl(obj, py)?,
             other => {
-                return Err(PyErr::new::<PyNotImplementedError, _>(
-                    "Unable to represent JsFunction in Python",
-                ))
+                return Err(PyErr::new::<PyNotImplementedError, _>(format!(
+                    "Unable to convert {:?} into PyDict",
+                    other.kind()
+                )))
             }
         })
     }
diff --git a/packages/cubejs-backend-native/src/python/runtime.rs b/packages/cubejs-backend-native/src/python/runtime.rs
index 253536ab43402..d6d21b06677f2 100644
--- a/packages/cubejs-backend-native/src/python/runtime.rs
+++ b/packages/cubejs-backend-native/src/python/runtime.rs
@@ -7,7 +7,7 @@ use neon::prelude::*;
 use neon::types::Deferred;
 use once_cell::sync::OnceCell;
 use pyo3::prelude::*;
-use pyo3::types::{PyDict, PyFunction, PyTuple};
+use pyo3::types::{PyFunction, PyTuple};
 use std::fmt::Formatter;
 use std::future::Future;
 use std::pin::Pin;