Update app.py

app.py

@@ -194,9 +194,9 @@ def process_pdf(file):
     paper_text = chatbot.parse_paper(pdf)
     global df
     df = chatbot.paper_df(paper_text)
-    df = chatbot.calculate_embeddings(df)
+    embeddings = chatbot.calculate_embeddings(df)
     print("Done processing pdf")
-    return chatbot.embeddings
+    return embeddings
 
 def download_pdf(url):
     chatbot = Chatbot()
@@ -206,9 +206,9 @@ def download_pdf(url):
     paper_text = chatbot.parse_paper(pdf)
     global df
     df = chatbot.paper_df(paper_text)
-    df = chatbot.calculate_embeddings(df)
+    embeddings = chatbot.calculate_embeddings(df)
     print("Done processing pdf")
-    return chatbot.embeddings
+    return embeddings
 
 def show_pdf(file_content):
     base64_pdf = base64.b64encode(file_content).decode('utf-8')