Update app.py

app.py

@@ -4,7 +4,7 @@ from langchain.embeddings import CohereEmbeddings
 from langchain.prompts import PromptTemplate
 from langchain import OpenAI
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-
+import os
 import numpy as np
 from sklearn.metrics.pairwise import cosine_similarity
 
@@ -12,6 +12,14 @@ import spacy
 spacy.cli.download("en_core_web_md")
 nlp = spacy.load('en_core_web_md')
 
+
+from dotenv import load_dotenv
+
+load_dotenv()
+
+
+OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
+COHERE_API_KEY = os.getenv('COHERE_API_KEY')
 text_splitter = RecursiveCharacterTextSplitter(chunk_size = 200, chunk_overlap = 0)
 embedding = CohereEmbeddings(model='embed-multilingual-v3.0',cohere_api_key=COHERE_API_KEY)