code: def pack(window, sizer, expand=1.1):
      "simple wxPython pack function"
      tsize =  window.GetSize()
      msize =  window.GetMinSize()
      window.SetSizer(sizer)
      sizer.Fit(window)
      nsize = (10*int(expand*(max(msize[0], tsize[0])/10)),
               10*int(expand*(max(msize[1], tsize[1])/10.)))
      window.SetSize(nsizef pack(window, sizer, expand=1.1):
      "simple wxPython pack function"
      tsize =  window.GetSize()
      msize =  window.GetMinSize()
      window.SetSizer(sizer)
      sizer.Fit(window)
      nsize = (10*int(expand*(max(msize[0], tsize[0])/10)),
               10*int(expand*(max(msize[1], tsize[1])/10.)))
      window.SetSize(nsize)
docs: simple wxPython pack function