from Tkinter import *
from tkMessageBox import *
from tkFileDialog import askopenfilename
def callback():
askquestion('Warning', 'Line "quotation"\n Line 2 ?')
errmsg = 'Error!'
Button(text='Quit', command=callback).pack(fill=X)
Button(text='Spam', command=(lambda: showerror('Spam', errmsg))).pack(fill=X)
mainloop()
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