from tkinter import *
root=Tk()
def leftclick(event):
print('Нажата клавиша z')
#button1=Button(root, text=u'Нажми')
#button1.pack()
root.bind("z", leftclick)
root.withdraw()
root.focus_set()
root.grab_set()
root.wait_window()
root.mainloop()
