The text entry field

Version 1 of creating a text field: straightforward packing of labels and entries in frames: 
def textentry(self, parent, variable, label):
    """make a textentry field tied to variable"""
    f = Frame(parent)
    f.pack(side='top', padx=2, pady=2)
    l = Label(f, text=label)
    l.pack(side='left')
    widget = Entry(f, textvariable=variable, width=8)
    widget.pack(side='left', anchor='w')
    return widget

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