fix errors

Signed-off-by: sewon.jeon <[email protected]>

Author: eclipse0922

monai/transforms/compose.py

@@ -293,13 +293,10 @@ def set_group_recursive(obj, gid):
                 # Skip magic methods and common non-transform attributes
                 if attr_name.startswith("__") or attr_name in ("transforms", "transform"):
                     continue
-                try:
-                    attr = getattr(obj, attr_name, None)
-                    if attr is not None and isinstance(attr, TraceableTransform) and not isinstance(attr, Compose):
-                        # Recursively set group on nested transforms
-                        set_group_recursive(attr, gid)
-                except Exception:
-                    pass
+                attr = getattr(obj, attr_name, None)
+                if attr is not None and isinstance(attr, TraceableTransform) and not isinstance(attr, Compose):
+                    # Recursively set group on nested transforms
+                    set_group_recursive(attr, gid)
 
         for transform in self.transforms:
             set_group_recursive(transform, group_id)

monai/transforms/inverse.py

@@ -82,6 +82,10 @@ def _init_trace_threadlocal(self):
         if not hasattr(self._tracing, "value"):
             self._tracing.value = MONAIEnvVars.trace_transform() != "0"
 
+        # Initialize group identifier (set by Compose for automatic group tracking)
+        if not hasattr(self, "_group"):
+            self._group: str | None = None
+
     def __getstate__(self):
         """When pickling, remove the `_tracing` member from the output, if present, since it's not picklable."""
         _dict = dict(getattr(self, "__dict__", {}))  # this makes __dict__ always present in the unpickled object
@@ -119,6 +123,9 @@ def get_transform_info(self) -> dict:
         """
         Return a dictionary with the relevant information pertaining to an applied transform.
         """
+        # Ensure _group is initialized
+        self._init_trace_threadlocal()
+
         vals = (
             self.__class__.__name__,
             id(self),
@@ -128,7 +135,7 @@ def get_transform_info(self) -> dict:
         info = dict(zip(self.transform_info_keys(), vals))
 
         # Add group if set (automatically set by Compose)
-        if hasattr(self, "_group") and self._group is not None:
+        if self._group is not None:
             info[TraceKeys.GROUP] = self._group
 
         return info