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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

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(nsize)