python - wxpython: issue with layout in example -

i trying learn wxpython , problem when run example code wiki:

the main frame isn't resizing properly. what's missing?

i running under enthought python distribution 7.3-2 (python 2.7.3)

# http://wiki.wxpython.org/getting%20started import wx class examplepanel(wx.panel):     def __init__(self, parent):         wx.panel.__init__(self, parent)          # create sizers         mainsizer = wx.boxsizer(wx.vertical)         grid = wx.gridbagsizer(hgap=5, vgap=5)         hsizer = wx.boxsizer(wx.horizontal)          self.quote = wx.statictext(self, label="your quote: ")         grid.add(self.quote, pos=(0,0))          # multiline textctrl - here show how events work in program, don't pay attention         self.logger = wx.textctrl(self, size=(200,300), style=wx.te_multiline | wx.te_readonly)          # button         self.button =wx.button(self, label="save")         self.bind(wx.evt_button, self.onclick,self.button)          # edit control - 1 line version.         self.lblname = wx.statictext(self, label="your name :")         grid.add(self.lblname, pos=(1,0))         self.editname = wx.textctrl(self, value="enter here name", size=(140,-1))         grid.add(self.editname, pos=(1,1))         self.bind(wx.evt_text, self.evttext, self.editname)         self.bind(wx.evt_char, self.evtchar, self.editname)          # combobox control         self.samplelist = ['friends', 'advertising', 'web search', 'yellow pages']         self.lblhear = wx.statictext(self, label="how did hear ?")         grid.add(self.lblhear, pos=(3,0))         self.edithear = wx.combobox(self, size=(95, -1), choices=self.samplelist, style=wx.cb_dropdown)         grid.add(self.edithear, pos=(3,1))         self.bind(wx.evt_combobox, self.evtcombobox, self.edithear)         self.bind(wx.evt_text, self.evttext,self.edithear)          # add spacer sizer         grid.add((10, 40), pos=(2,0))          # checkbox         self.insure = wx.checkbox(self, label="do want insured shipment ?")         grid.add(self.insure, pos=(4,0), span=(1,2), flag=wx.bottom, border=5)         self.bind(wx.evt_checkbox, self.evtcheckbox, self.insure)          # radio boxes         radiolist = ['blue', 'red', 'yellow', 'orange', 'green', 'purple', 'navy blue', 'black', 'gray']         rb = wx.radiobox(self, label="what color ?", pos=(20, 210), choices=radiolist,  majordimension=3,                          style=wx.ra_specify_cols)         grid.add(rb, pos=(5,0), span=(1,2))         self.bind(wx.evt_radiobox, self.evtradiobox, rb)          hsizer.add(grid, 0, wx.all, 5)         hsizer.add(self.logger)         mainsizer.add(hsizer, 0, wx.all, 5)         mainsizer.add(self.button, 0, wx.center)         self.setsizerandfit(mainsizer)      def evtradiobox(self, event):         self.logger.appendtext('evtradiobox: %d\n' % event.getint())     def evtcombobox(self, event):         self.logger.appendtext('evtcombobox: %s\n' % event.getstring())     def onclick(self,event):         self.logger.appendtext(" click on object id %d\n" %event.getid())     def evttext(self, event):         self.logger.appendtext('evttext: %s\n' % event.getstring())     def evtchar(self, event):         self.logger.appendtext('evtchar: %d\n' % event.getkeycode())         event.skip()     def evtcheckbox(self, event):         self.logger.appendtext('evtcheckbox: %d\n' % event.checked())         app = wx.app(false) frame = wx.frame(none) panel = examplepanel(frame) frame.show() app.mainloop() 

aha, figured out. call of frame.fit() missing before frame.show().

instead of

app = wx.app(false) frame = wx.frame(none) panel = examplepanel(frame) frame.show() app.mainloop() 

it should be

app = wx.app(false) frame = wx.frame(none) panel = examplepanel(frame) frame.fit() frame.show() app.mainloop()