refactor: replace all raillabel format UUIDs with str

raillabel/format/raillabel/frame.py

@@ -36,19 +36,19 @@ class Frame:
 
     Read-Only Attributes
     --------------------
-    object_data: dict[str, dict[UUID, _ObjectAnnotation subclass]]
+    object_data: dict[str, dict[str, _ObjectAnnotation subclass]]
         Annotations categorized by object. Keys are object uids and values are the annotations
-        as a dict, that have the object.
+        as a dict, that are part of the object.
     """
 
     uid: int
     timestamp: t.Optional[decimal.Decimal] = None
     sensors: t.Dict[str, SensorReference] = field(default_factory=dict)
     frame_data: t.Dict[str, Num] = field(default_factory=dict)
-    annotations: t.Dict[uuid.UUID, t.Type[_ObjectAnnotation]] = field(default_factory=dict)
+    annotations: t.Dict[str, t.Type[_ObjectAnnotation]] = field(default_factory=dict)
 
     @property
-    def object_data(self) -> t.Dict[str, t.Dict[uuid.UUID, t.Type[_ObjectAnnotation]]]:
+    def object_data(self) -> t.Dict[str, t.Dict[str, t.Type[_ObjectAnnotation]]]:
         """Return annotations categorized by Object-Id.
 
         Returns
@@ -221,7 +221,7 @@ def _objects_fromdict(
             for annotation in object_annotations:
                 if annotation.uid in annotations:
                     cls._issue_duplicate_annotation_uid_warning(annotation.uid, frame_id)
-                    annotation.uid = uuid.uuid4()
+                    annotation.uid = str(uuid.uuid4())
 
                 annotations[annotation.uid] = annotation
 

raillabel/format/raillabel/object.py

@@ -3,7 +3,6 @@
 
 import typing as t
 from dataclasses import dataclass
-from uuid import UUID
 
 from _collections_abc import dict_values
 
@@ -143,7 +142,7 @@ def _object_data_pointers_asdict(
         }
 
     def _is_object_in_frame(self, frame: "Frame") -> bool:
-        return UUID(self.uid) in frame.object_data or str(self.uid) in frame.object_data
+        return self.uid in frame.object_data
 
     def _filtered_annotations(self, frame: "Frame") -> dict_values:
         return [ann for ann in frame.annotations.values() if ann.object.uid == self.uid]

raillabel/format/raillabel/scene.py

@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
 import typing as t
-import uuid
 from dataclasses import dataclass, field
 
 from ... import exceptions
@@ -37,7 +36,7 @@ class Scene:
 
     metadata: Metadata
     sensors: t.Dict[str, Sensor] = field(default_factory=dict)
-    objects: t.Dict[uuid.UUID, Object] = field(default_factory=dict)
+    objects: t.Dict[str, Object] = field(default_factory=dict)
     frames: t.Dict[int, Frame] = field(default_factory=dict)
 
     @property
@@ -223,7 +222,7 @@ def _coordinate_systems_asdict(self, sensors: t.Dict[str, Sensor]) -> dict:
 
         return coordinate_systems
 
-    def _objects_asdict(self, objects: t.Dict[uuid.UUID, Object], calculate_pointers: bool) -> dict:
+    def _objects_asdict(self, objects: t.Dict[str, Object], calculate_pointers: bool) -> dict:
 
         if calculate_pointers:
             return {str(uid): object.asdict(self.frames) for uid, object in objects.items()}

tests/test_raillabel/format/raillabel/test_object.py

@@ -385,7 +385,7 @@ def build_annotation(name: str, object: Object, attributes: dict={}) -> t.Union[
 
     if ann_type == "bbox":
         return Bbox(
-            uid=uuid4(),
+            uid=str(uuid4()),
             object=object,
             attributes=attributes,
             sensor=sensor,
@@ -395,7 +395,7 @@ def build_annotation(name: str, object: Object, attributes: dict={}) -> t.Union[
 
     elif ann_type == "cuboid":
         return Cuboid(
-            uid=uuid4(),
+            uid=str(uuid4()),
             object=object,
             attributes=attributes,
             sensor=sensor,
@@ -417,7 +417,7 @@ def build_frame(uid: int, raw_object_data: t.Dict[Object, t.List[t.Union[Bbox, C
 
 def build_object(type: str) -> Object:
     return Object(
-        uid=uuid4(),
+        uid=str(uuid4()),
         name=f"{type}_{str(random.randint(0, 9999)).zfill(4)}",
         type=type
     )