# put two different size panels into a wxBoxSizer
 
import wx
 
class MyFrame(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(250, 70))
        panel = wx.Panel(self, -1)
        panel1 = wx.Panel(panel, -1, size=(50, 30))
        panel1.SetBackgroundColour('blue')
        panel2 = wx.Panel(panel, -1, size=(200, 30))
        panel2.SetBackgroundColour('green')
        box = wx.BoxSizer(wx.VERTICAL)
        box.Add(panel1, 1)
        box.Add(panel2, 1)
        panel.SetSizer(box)
        self.Centre()
 
class MyApp(wx.App):
     def OnInit(self):
         frame = MyFrame(None, -1, 'wxBoxSizer.py')
         frame.Show(True)
         return True
 
app = MyApp(0)
app.MainLoop()

from wxPython.wx import *
 
class APanel(wxPanel):
	def __init__(self, parent,size,pos):
		wxPanel.__init__(self,parent,-1,size = size,pos = pos)
 
class MainFrame(wxFrame):
	def __init__(self, parent, ID, title):
		wxFrame.__init__(self, parent, ID, title, size = (500,500))
		self.testPanel = self.createTestPanel(self)
		self.argsPanel = self.createArgsPanel(self)
 
	def createTestPanel(self,parent):
		size = wxSize(250, 100)
		pos = (0,0)
		testPanel = APanel(parent,size,pos)
		testPanel.SetBackgroundColour("GRAY")
		print "returning panel %s" %testPanel
		return testPanel
 
	def createArgsPanel(self,parent):
		size = wxSize(250, 300)
		pos = (0,100)
		argsPanel = APanel(parent,size,pos)
		argsPanel.SetBackgroundColour("BLUE")
		print "returning panel %s" %argsPanel
		return argsPanel
 
class MyApp(wxApp):
	def OnInit(self):
		frame = MainFrame(NULL, -1, "I hate sizers :D")
		frame.Show(1)
		return true
 
app = MyApp(0)
app.MainLoop()

        box.Add(panel1, 0)
        box.Add(panel2, 0)