Update app.py

app.py

@@ -1,10 +1,8 @@
 import PyPDF2
 import gradio as gr
 import openai
-from huggingface_hub import HfApi
 
-api = HfApi()
-openai.api_key = api.get_secret("OPENAI_API_KEY")
+openai.api_key = os.environ.get("OPENAI_API_KEY")
 
 def extract_text_from_block(pdf_path, block_pages):
     text = ""