fixed: specific python version doesn't support this f-string.

https://github.com/ltdrdata/ComfyUI-Impact-Pack/issues/893

__init__.py

@@ -8,7 +8,7 @@
 import importlib
 import logging
 
-version_code = [1, 2, 7]
+version_code = [1, 2, 9]
 version_str = f"V{version_code[0]}.{version_code[1]}" + (f'.{version_code[2]}' if len(version_code) > 2 else '')
 logging.info(f"### Loading: ComfyUI-Impact-Subpack ({version_str})")
 

modules/subpack_nodes.py

@@ -30,6 +30,22 @@ class UltralyticsDetectorProvider:
 
     def doit(self, model_name):
         model_path = folder_paths.get_full_path("ultralytics", model_name)
+
+        if model_path is None:
+            print(f"[Impact Subpack] model file '{model_name}' is not found in one of the following directories:")
+
+            cands = []
+            cands.extend(folder_paths.get_folder_paths("ultralytics"))
+            if model_name.startswith('bbox/'):
+                cands.extend(folder_paths.get_folder_paths("ultralytics_bbox"))
+            elif model_name.startswith('segm/'):
+                cands.extend(folder_paths.get_folder_paths("ultralytics_segm"))
+
+            formatted_cands = "\n\t".join(cands)
+            print(f'\t{formatted_cands}\n')
+
+            raise ValueError(f"[Impact Subpack] model file '{model_name}' is not found.")
+
         model = subcore.load_yolo(model_path)
 
         if model_name.startswith("bbox"):

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-impact-subpack"
 description = "This node pack provides nodes that complement the Impact Pack, such as the UltralyticsDetectorProvider."
-version = "1.2.7"
+version = "1.2.9"
 license = { file = "LICENSE.txt" }
 dependencies = ["matplotlib", "ultralytics==8.3.40"]