class LoginPanel(wx.Panel):
    def __init__(self,parent)
        super(LoginPanel,self).__init__(parent)

        self._username = wx.TextCtrl(self)
        self._password = wx.TextCtrl(self,style=wx.TE_PASSWORD)

        sizer          = wx.FlexGridSizer(2,2,8,8)

        sizer.Add(wx.StaticText(self,label="Username:"),
                0,wx.ALIGN_CENTER_VERTICAL)
        sizer.Add(self._username,0,wx.EXPAND)
        sizer.Add(wx.StaticText(self,label="Password"),
                0,wx.ALIGN_CENTER_VERTICAL)
        sizer.Add(self._password,0,wx.EXPAND)

        msizer          = wx.BoxSizer(wx.VERTICAL)
        msizer.Add(sizer,1,wx.EXPAND|wx.ALL,20)
        btnszr          = wx.StdDialogButtonSizer()
        button          = wx.Button(self, wx.ID_OK)
        button.SetDefault()
        btnszr.AddButton(button)
        msizer.Add(btnszr,0,wx.ALIGN_CENTER|wx.ALL,12)
        btnszr.Realize()

        self.SetSizer(msizer)

dir(wx.Panel)