Maintaining Project Compatibility for Python 3.9 Users Without Upgrad…

…e Requirements.

Sole usage of Python 3.10 is match-case in the project hinders quick-start for beginners; consider replacing with if-else for improved accessibility

modules/torch_utils.py

@@ -20,7 +20,9 @@ def get_param(model) -> torch.nn.Parameter:
 
 def float64(t: torch.Tensor):
     """return torch.float64 if device is not mps or xpu, else return torch.float32"""
-    match t.device.type:
-        case 'mps', 'xpu':
-            return torch.float32
+    # match t.device.type:
+    #     case 'mps', 'xpu':
+    #         return torch.float32
+    if t.device.type in ['mps', 'xpu']:
+        return torch.float32
     return torch.float64