Update app.py

app.py

@@ -26,10 +26,10 @@ construct_index("data")
 os.environ["OPENAI_API_KEY"] = "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"
 def ask_ai(question,api_key):
 
-    if api_key == "":
+    if openai_api_key == "":
         os.environ["OPENAI_API_KEY"] = "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"
     else:
-        os.environ["OPENAI_API_KEY"] = api_key
+        os.environ["OPENAI_API_KEY"] = openai_api_key
         
     index = GPTSimpleVectorIndex.load_from_disk('index.json')
     response = index.query(question, response_mode="compact")