tkinter py2→py3

tkinter py2→py3

    py2 → py3
    Tkinter → tkinter
    tkMessageBox → tkinter.messagebox
    tkColorChooser → tkinter.colorchooser
    tkFileDialog → tkinter.filedialog
    tkCommonDialog → tkinter.commondialog
    tkSimpleDialog → tkinter.simpledialog
    tkFont → tkinter.font
    Tkdnd → tkinter.dnd
    ScrolledText → tkinter.scrolledtext
    Tix → tkinter.tix
    ttk → tkinter.ttk