py2.x → py3.x Tkinter → tkintertkMessageBox → tkinter.messageboxtkColorChooser → tkinter.colorchoosertkFileDialog → tkinter.filedialogtkCommonDialog → tkinter.commondialogtkSimpleDialog → tkinter.simpledialogtkFont → tkinter.fontTkdnd → tkinter.dndScrolledText → tkinter.scrolledtextTix → tkinter.tixttk → tkinter.ttk