Update app.py

app.py

@@ -3,8 +3,8 @@ from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.text_splitter import CharacterTextSplitter
 from langchain.vectorstores import FAISS
 import os
-os.environ["OPENAI_API_KEY"] = "sk-proj-FiRph57Razvp7ndTaNQ3T3BlbkFJ4cEeTjMqUaQomG961dyc"
-# provide the path of  pdf file/files.
+OPENAI_API_KEY="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"
+os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY
 pdfreader = PdfReader('csp.pdf')
 from typing_extensions import Concatenate
 # read text from pdf