Update app.py

app.py

@@ -8,7 +8,7 @@ import gradio as gr
 import os
 from sklearn.neighbors import NearestNeighbors
 
-openai.api_key = openAI
+openai.api_key = OpenAI
 
 def download_pdf(url, output_path):
     urllib.request.urlretrieve(url, output_path)
@@ -93,7 +93,7 @@ def load_recommender(path, start_page=1):
     return 'Corpus Loaded.'
     
 def generate_text(prompt, engine="davinci"):
-    openai.api_key = openAI
+    openai.api_key = OpenAI
     completions = openai.Completion.create(
         engine=engine,
         prompt=prompt,