Update app.py

app.py

@@ -3,16 +3,15 @@ import json
 from streamlit_option_menu import option_menu
 
 def loadfile():
-    with open("data.json") as f:
-        data = json.load(f)
+    with open("data.json") as file:
+        data = json.load(file)
         return data
 
 def savefile(newuser):
-    # data = loadfile()
-    # data['users'].append(newuser)
-    json_object = json.dumps(newuser, indent=4)
+    data = loadfile()
+    data['users'].append(newuser)
     with open("data.json", "w") as f:
-        f.write(json_object)
+        json.dump(data, f, indent=4)
 
 def Signup():
     username = st.text_input("Username")