from numpy import arange, sin, pi
import matplotlib
matplotlib.use('WXAgg')
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
from matplotlib.backends.backend_wx import NavigationToolbar2Wx
from matplotlib.figure import Figure
from wx import *

class CanvasFrame(Frame):
   def __init__(self):
       Frame.__init__(self,None,-1, 'CanvasFrame',size=(550,350))
       self.SetBackgroundColour(NamedColor("WHITE"))
       self.figure = Figure()
       self.axes = self.figure.add_subplot(111)
       t = arange(0.0,3.0,0.01)
       s = sin(2*pi*t)
       self.axes.plot(t,s)
       self.canvas = FigureCanvas(self, -1, self.figure)
       self.sizer = BoxSizer(VERTICAL)
       self.sizer.Add(self.canvas, 1, LEFT | TOP | GROW)
       self.SetSizerAndFit(self.sizer)
       self.add_toolbar()

   def add_toolbar(self):
       self.toolbar = NavigationToolbar2Wx(self.canvas)
       self.toolbar.Realize()
       if Platform == '__WXMAC__':
           self.SetToolBar(self.toolbar)
       else:
           tw, th = self.toolbar.GetSizeTuple()
           fw, fh = self.canvas.GetSizeTuple()
           self.toolbar.SetSize(Size(fw, th))
           self.sizer.Add(self.toolbar, 0, LEFT | EXPAND)
       self.toolbar.update()

   def OnPaint(self, event):
       self.canvas.draw()

class App(App):
   def OnInit(self):
       'Create the main window and insert the custom frame'
       frame = CanvasFrame()
       frame.Show(True)
       return True

app = App(0)
app.MainLoop()