Update app.py

app.py

@@ -4,8 +4,10 @@ from epub2txt import epub2txt
 class GUI:
     def __init__(self, *args, **kwargs):
         with gr.Blocks(css=".lbtn {float: right;}") as demo:
+            with gr.Row():
+                gr.LoginButton(elem_classes="lbtn")
+                gr.LogoutButton(elem_classes="lbtn")
             self.out = gr.Markdown().attach_load_event(self.hello, None)
-        
         demo.launch()
 
     def process(self, file):
@@ -19,15 +21,10 @@ class GUI:
 
     def hello(self, profile: gr.OAuthProfile | None):
         if profile is None:
-            with gr.Row():
-                gr.LoginButton(elem_classes="lbtn")
             return (
                 '# ePub summarization tool  '
                 '<p style="text-align: center;">Login to access the tool.</p>'
             )
-        with gr.Row():
-            gr.LoginButton(elem_classes="lbtn")
-            gr.LogoutButton(elem_classes="lbtn")
         inp = gr.File(file_types=['.epub'])
         inp.change(self.process, inp, self.out)
         return self.greet(profile.name)