Update app.py

app.py

@@ -19,7 +19,7 @@ def get_hugging_face_model():
 
 
 def get_db():
-    with open("codesearchdb.pickle", "rb") as f:
+    with open("codesearchdb.pickle", "r") as f:
         #db = CPU_Unpickler(f).load()
         db = f.load()
     return db