Update app.py

app.py

@@ -12,22 +12,6 @@ Improvements:
 import gc
 import os
 import io
-
-# Workaround: Gradio 5.x bug where Queue.pending_message_lock stays None if the
-# ASGI lifespan startup events don't fire (a Python 3.13 asyncio compatibility issue).
-# Patch Queue.push to lazily initialize the lock before its first use.
-try:
-    import asyncio as _asyncio
-    from gradio.queueing import Queue as _GradioQueue
-    _orig_push = _GradioQueue.push
-    async def _patched_push(self, *args, **kwargs):
-        if getattr(self, "pending_message_lock", None) is None:
-            self.pending_message_lock = _asyncio.Lock()
-        return await _orig_push(self, *args, **kwargs)
-    _GradioQueue.push = _patched_push
-    print("✅ Applied Gradio queue lock workaround")
-except Exception as _patch_err:
-    print(f"ℹ️ Gradio queue patch skipped: {_patch_err}")
 import subprocess
 import json
 import re
@@ -41,6 +25,23 @@ from pathlib import Path
 from collections import Counter, defaultdict
 from functools import wraps, lru_cache
 import gradio as gr
+
+# Workaround: Gradio 5.x/6.x bug where Queue.pending_message_lock stays None if the
+# ASGI lifespan startup events don't fire (Python 3.13 asyncio compatibility issue).
+# Must be patched AFTER gradio is fully imported.
+try:
+    import asyncio as _asyncio
+    from gradio.queueing import Queue as _GradioQueue
+    _orig_push = _GradioQueue.push
+    async def _patched_push(self, *args, **kwargs):
+        if getattr(self, "pending_message_lock", None) is None:
+            self.pending_message_lock = _asyncio.Lock()
+        return await _orig_push(self, *args, **kwargs)
+    _GradioQueue.push = _patched_push
+    print("✅ Applied Gradio queue lock workaround")
+except Exception as _patch_err:
+    print(f"ℹ️ Gradio queue patch skipped: {_patch_err}")
+
 import pandas as pd
 import numpy as np
 import torch