Merge pull request #2537 from pipecat-ai/aleix/pipeline-task-cleanup-observers

PipelineTask: cleanup observers

CHANGELOG.md

@@ -64,6 +64,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `pipecat.frames.frames.KeypadEntry` is deprecated use
   `pipecat.audio.dtmf.types.KeypadEntry` instead.
 
+## Fixed
+
+- Fixed an issue where `PipelineTask` was not cleaning up the observers.
+
 ## [0.0.82] - 2025-08-28
 
 ### Added

src/pipecat/pipeline/task.py

@@ -571,6 +571,10 @@ class PipelineTask(BasePipelineTask):
         # Cleanup base object.
         await self.cleanup()
 
+        # Cleanup observers.
+        if self._observer:
+            await self._observer.cleanup()
+
         # End conversation tracing if it's active - this will also close any active turn span
         if self._enable_tracing and hasattr(self, "_turn_trace_observer"):
             self._turn_trace_observer.end_conversation_tracing()

src/pipecat/pipeline/task_observer.py

@@ -119,6 +119,16 @@ class TaskObserver(BaseObserver):
         for proxy in self._proxies.values():
             await self._task_manager.cancel_task(proxy.task)
 
+    async def cleanup(self):
+        """Cleanup all proxy observers."""
+        await super().cleanup()
+
+        if not self._proxies:
+            return
+
+        for proxy in self._proxies:
+            await proxy.cleanup()
+
     async def on_process_frame(self, data: FramePushed):
         """Queue frame data for all managed observers.