Update app.py

app.py

@@ -2,8 +2,9 @@ from langchain.chains import llm
 from ast import Index
 from gpt_index import SimpleDirectoryReader, GPTListIndex, readers, GPTSimpleVectorIndex, LLMPredictor, PromptHelper
 from langchain import OpenAI
+import os 
 
-os.environ["OPENAI_API_KEY"] = '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'
+os.environ["OPENAI_API_KEY"] = OPEN_AI_KEY
 
 def ask_patrick():
     index = GPTSimpleVectorIndex.load_from_disk('index-4.json')