update on app.py

app.py

@@ -16,7 +16,7 @@ import os
 
 
 def open_file(filepath):
-    with open(filepath, 'r' encoding='utf-8') as infile:
+    with open(filepath, 'r', encoding='utf-8') as infile:
         return infile.read()
 
 # %pdb on

requirements.txt

@@ -1,2 +1,2 @@
 openai
-dotenv
+