Slider

import wx


class Example(wx.Frame):

    def __init__(self, *args, **kw):
        super(Example, self).__init__(*args, **kw)

        self.InitUI()

    def InitUI(self):

        pnl = wx.Panel(self)

        sld = wx.Slider(pnl, value=200, minValue=150, maxValue=500, pos=(20, 20),
            size=(250, -1), style=wx.SL_HORIZONTAL)

        sld.Bind(wx.EVT_SCROLL, self.OnSliderScroll)

        self.txt = wx.StaticText(pnl, label='200', pos=(20, 90))

        self.SetSize((290, 200))
        self.SetTitle('wx.Slider')
        self.Centre()
        self.Show(True)

    def OnSliderScroll(self, e):

        obj = e.GetEventObject()
        val = obj.GetValue()

        self.txt.SetLabel(str(val))


def main():

    ex = wx.App()
    Example(None)
    ex.MainLoop()

if __name__ == '__main__':
    main()