Fix bug with custom nodes on other drives.

Author: comfyanonymous

nodes.py

@@ -1890,29 +1890,29 @@ def expand_image(self, image, left, top, right, bottom, feathering):
 EXTENSION_WEB_DIRS = {}
 
 
-def get_relative_module_name(module_path: str) -> str:
+def get_module_name(module_path: str) -> str:
     """
     Returns the module name based on the given module path.
     Examples:
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.py") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__.py") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__/") -> "custom_nodes.my_custom_node"
-        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.disabled") -> "custom_nodes.my
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.py") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__.py") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node/__init__/") -> "my_custom_node"
+        get_module_name("C:/Users/username/ComfyUI/custom_nodes/my_custom_node.disabled") -> "custom_nodes
     Args:
         module_path (str): The path of the module.
     Returns:
         str: The module name.
     """
-    relative_path = os.path.relpath(module_path, folder_paths.base_path)
+    base_path = os.path.basename(module_path)
     if os.path.isfile(module_path):
-        relative_path = os.path.splitext(relative_path)[0]
-    return relative_path.replace(os.sep, '.')
+        base_path = os.path.splitext(base_path)[0]
+    return base_path
 
 
-def load_custom_node(module_path: str, ignore=set()) -> bool:
+def load_custom_node(module_path: str, ignore=set(), module_parent="custom_nodes") -> bool:
     module_name = os.path.basename(module_path)
     if os.path.isfile(module_path):
         sp = os.path.splitext(module_path)
@@ -1939,7 +1939,7 @@ def load_custom_node(module_path: str, ignore=set()) -> bool:
             for name, node_cls in module.NODE_CLASS_MAPPINGS.items():
                 if name not in ignore:
                     NODE_CLASS_MAPPINGS[name] = node_cls
-                    node_cls.RELATIVE_PYTHON_MODULE = get_relative_module_name(module_path)
+                    node_cls.RELATIVE_PYTHON_MODULE = "{}.{}".format(module_parent, get_module_name(module_path))
             if hasattr(module, "NODE_DISPLAY_NAME_MAPPINGS") and getattr(module, "NODE_DISPLAY_NAME_MAPPINGS") is not None:
                 NODE_DISPLAY_NAME_MAPPINGS.update(module.NODE_DISPLAY_NAME_MAPPINGS)
             return True
@@ -1974,7 +1974,7 @@ def init_external_custom_nodes():
             if os.path.isfile(module_path) and os.path.splitext(module_path)[1] != ".py": continue
             if module_path.endswith(".disabled"): continue
             time_before = time.perf_counter()
-            success = load_custom_node(module_path, base_node_names)
+            success = load_custom_node(module_path, base_node_names, module_parent="custom_nodes")
             node_import_times.append((time.perf_counter() - time_before, module_path, success))
 
     if len(node_import_times) > 0:
@@ -2040,7 +2040,7 @@ def init_builtin_extra_nodes():
 
     import_failed = []
     for node_file in extras_files:
-        if not load_custom_node(os.path.join(extras_dir, node_file)):
+        if not load_custom_node(os.path.join(extras_dir, node_file), module_parent="comfy_extras"):
             import_failed.append(node_file)
 
     return import_failed