Update app.py

app.py

@@ -2,6 +2,7 @@ from langchain.chat_models import ChatOpenAI
 from langchain.prompts import PromptTemplate
 from langchain.chains import LLMChain
 from pytesseract import image_to_string
+from dotenv import load_dotenv
 from PIL import Image
 from io import BytesIO
 import pypdfium2 as pdfium
@@ -12,7 +13,7 @@ import pandas as pd
 import json
 import requests
 
-OPENAI_API_KEY = "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"
+load_dotenv()
 
 # 1. Convert PDF file into images via pypdfium2