title: wxPython: User Input display of the calculator
body: <p>I am new to Python and this is my very first attempt to built my very own Calculator application using wxPython.</p>
  
  <pre><code>import wx
  
  ########################################################################
  class PyCalc(wx.Frame):
      """
      Python Calculator using wxPython
      """
  
      #----------------------------------------------------------------------
      def __init__(self):
          """Constructor"""        
          wx.Frame.__init__(self, None, wx.ID_ANY, 
                            "Py Calculator",
                            size=(320,240)
                            )
          panel = wx.Panel(self)
  
          button1 = wx.Button(panel, label="1")
          button1.Bind(wx.EVT_BUTTON, lambda evt, name=button1.GetLabel(): self.onButton(evt, name))
          button2 = wx.Button(panel, label="2")
          button2.Bind(wx.EVT_BUTTON, lambda evt, name=button2.GetLabel(): self.onButton(evt, name))
          button3 = wx.Button(panel, label="3")
          button3.Bind(wx.EVT_BUTTON, lambda evt, name=button3.GetLabel(): self.onButton(evt, name))
          button4 = wx.Button(panel, label="4")
          button4.Bind(wx.EVT_BUTTON, lambda evt, name=button4.GetLabel(): self.onButton(evt, name))
          button5 = wx.Button(panel, label="5")
          button5.Bind(wx.EVT_BUTTON, lambda evt, name=button5.GetLabel(): self.onButton(evt, name))
          button6 = wx.Button(panel, label="6")
          button6.Bind(wx.EVT_BUTTON, lambda evt, name=button6.GetLabel(): self.onButton(evt, name))
          button7 = wx.Button(panel, label="7")
          button7.Bind(wx.EVT_BUTTON, lambda evt, name=button7.GetLabel(): self.onButton(evt, name))
          button8 = wx.Button(panel, label="8")
          button8.Bind(wx.EVT_BUTTON, lambda evt, name=button8.GetLabel(): self.onButton(evt, name))
          button9 = wx.Button(panel, label="9")
          button9.Bind(wx.EVT_BUTTON, lambda evt, name=button9.GetLabel(): self.onButton(evt, name))
          button10 = wx.Button(panel, label="10")
          button10.Bind(wx.EVT_BUTTON, lambda evt, name=button10.GetLabel(): self.onButton(evt, name))
  
          sizer = wx.GridSizer(rows = 3, cols=3, hgap =5,vgap =5) 
          sizer.Add(button1)
          sizer.Add(button2)
          sizer.Add(button3)
          sizer.Add(button4)
          sizer.Add(button5)
          sizer.Add(button6)
          sizer.Add(button7)
          sizer.Add(button8)
          sizer.Add(button9)
          sizer.Add(button10)
  
          panel.SetSizer(sizer)
  
      #----------------------------------------------------------------------
      def onButton(self, event, buttonLabel):
          """"""
          print "You pressed the %s button!" % buttonLabel
  
  # Run the program
  if __name__ == "__main__":
      app = wx.PySimpleApp()
      frame = PyCalc().Show()
      app.MainLoop()
  </code></pre>
  
  <p>My question is what should I use for that display box in the calculator which displays what the user types in? What is in in WxPython?</p>