title: How to fix <NumericProperty name=> in list python kivy?
body: <p>I tried to make kivy display my list.
  This is my simple python code for testing:</p>
  <pre><code>class test(BoxLayout):
      pass
  
  class testApp(App):
      numberx = NumericProperty(10)
      numbery = NumericProperty(5)
  
      list = [numberx,numbery]
  
  testApp().run()
  </code></pre>
  <p>this is my kv file:</p>
  <pre><code>#:import Label kivy.uix.label.Label
  test:
  
  &lt;test&gt;:
      orientation: 'vertical'
      on_parent: for x in app.list: self.add_widget(Label(text = str(x) ))
  </code></pre>
  <p><a href="https://i.stack.imgur.com/DamTl.png" rel="nofollow noreferrer">This is the output</a></p>
  <p>The output show:</p>
  <pre><code>NumericProperty name=numberx
  
  NumericProperty name=numbery
  
  NumericProperty name=numberx
  
  NumericProperty name=numbery
  </code></pre>
  <p>But I want it to show:</p>
  <pre><code>10
  
  5
  </code></pre>
  <p>Please help me</p>