json_response = json.loads(response.choices[0].message.content)["questions"]

app.py

@@ -2,6 +2,7 @@ import gradio as gr
 import pandas as pd
 import os
 from openai import OpenAI
+import json
 
 OPEN_AI_KEY = os.getenv("OPEN_AI_KEY")
 client = OpenAI(api_key=OPEN_AI_KEY)
@@ -56,7 +57,7 @@ def generate_questions(df_string):
     }
 
     response = client.chat.completions.create(**request_payload)
-    json_response = response.choices[0].message.content["questions"]
+    json_response = json.loads(response.choices[0].message.content)["questions"]
     print("=====json_response=====")
     print(json_response)