edit req.txt and app.py

app.py

@@ -58,7 +58,7 @@ def get_response(instruction, query):
 
     results = vectorstore.similarity_search(query, k=5)
     llm = ChatOpenAI(
-        openai_api_key=os.environ.get('OPENAI_API_KEY'),
+        openai_api_key=gpt_api_key,
         model_name='gpt-3.5-turbo',
         temperature=0.0,
         request_timeout=1000

requirements.txt

@@ -2,3 +2,4 @@ langchain==0.0.315
 pinecone_client==2.2.4
 python-dotenv==1.0.0
 streamlit==1.24.1
+openai