diff --git a/direct/nn/lpd/lpd.py b/direct/nn/lpd/lpd.py
index d1884c7d..04683b49 100644
--- a/direct/nn/lpd/lpd.py
+++ b/direct/nn/lpd/lpd.py
@@ -179,7 +179,7 @@ def __init__(
             )
         else:
             raise NotImplementedError(
-                f"XPDNet is currently implemented only with primal_model_architecture == 'MWCNN', 'UNET' or 'NORMUNET. "
+                f"XPDNet is currently implemented only with primal_model_architecture == 'MWCNN', 'UNET' or 'NORMUNET."
                 f"Got {primal_model_architecture}."
             )
         dual_model: nn.Module
diff --git a/direct/nn/vsharp/config.py b/direct/nn/vsharp/config.py
index 622e9bba..64d45f31 100644
--- a/direct/nn/vsharp/config.py
+++ b/direct/nn/vsharp/config.py
@@ -1,5 +1,6 @@
 # coding=utf-8
 # Copyright (c) DIRECT Contributors
+from __future__ import annotations
 
 from dataclasses import dataclass
 from typing import Optional