Update app.py

app.py

@@ -19,11 +19,10 @@ if st.button("Submit", type="primary"):
         messages=[{"role": "user", "content": input}],
         stream=True,
     ):
-        content.append(chunk["choices"][0].get("delta", {}).get("content"))
-        if content is not None:
-            result = "".join(content).strip()
-        else:
-            result = ""
+        chunk_content = chunk["choices"][0].get("delta", {}).get("content")
+        if chunk_content is not None:
+          content.append(chunk_content)
+        result = "".join(content).strip()
         result = result.replace("\n", "")
         res_box.markdown(result)
 st.markdown("----")