#coding: utf-8
#
import tkinter
#
root = tkinter.Tk()
#
def analysis_buffer():
    try:
        buffer_1 = root.selection_get(selection="CLIPBOARD")
        if "Data" in buffer_1:
            print(buffer_1 + " --> go to parse")
            root.selection_clear(selection="CLIPBOARD")
    except tkinter.TclError:
        pass
    root.after(5000, analysis_buffer)
root.after(5000, analysis_buffer)
#
root.mainloop()