Update app.py

app.py

@@ -9,7 +9,16 @@ from langchain.vectorstores import FAISS
 import os
 
 # Set your OpenAI API key
-os.environ["OPENAI_API_KEY"] = "sk-proj-vFPqdrr801blzZCRBjztT3BlbkFJJJeQVcc62PA40cQ1S9Zv"
+#os.environ["OPENAI_API_KEY"] = "sk-proj-vFPqdrr801blzZCRBjztT3BlbkFJJJeQVcc62PA40cQ1S9Zv"
+
+# Load environment variables from a .env file
+load_dotenv()
+
+# Set your OpenAI API key
+openai.api_key = os.getenv("OPENAI_API_KEY")
+
+
+
 
 # Initialize global variables
 selected_paper = None