Update app.py

app.py

@@ -43,8 +43,12 @@ def add_text(history, text):
 
 def bot(history):
     response = infer(history[-1][0], history)
-    history[-1][1] = response
-    return history
+
+    for character in response:
+        history[-1][1] += character
+        time.sleep(0.05)
+        yield history
+    
 
 def infer(question, history):
     
@@ -58,7 +62,7 @@ def infer(question, history):
     query = question
     result = qa({"question": query, "chat_history": chat_history})
     #print(result)
-    yield result["answer"]
+    return result["answer"]
 
 css="""
 #col-container {max-width: 700px; margin-left: auto; margin-right: auto;}