Update app.py

app.py

@@ -11,6 +11,16 @@ if __name__ == "__main__":
         logging.basicConfig(level=logging.WARNING)
 
 
+import sys, types
+
+stub = types.ModuleType("azure")
+stub_cog = types.ModuleType("azure.cognitiveservices")
+stub_speech = types.ModuleType("azure.cognitiveservices.speech")
+sys.modules.update({
+    "azure": stub,
+    "azure.cognitiveservices": stub_cog,
+    "azure.cognitiveservices.speech": stub_speech,
+})
 
 from RealtimeTTS import (
     TextToAudioStream,