Update app.py

app.py

@@ -33,6 +33,7 @@ import util
 from huggingface_hub import hf_hub_download
 
 import shutil, platform, subprocess
+import uuid
 
 st.write("Python:", platform.python_version())
 st.write("FFmpeg exists:", shutil.which("ffmpeg"), "FFprobe:", shutil.which("ffprobe"))