from sprites import Sprite,Screen
screen = Screen()
screen.xy_grid()
bug = Sprite()
A = (-50,200)
B = (0,0)
C = (100,-30)
bug.draw_line(B,A)
bug.draw_line(B,C)
bug.mark(A,'A')
bug.mark(B,'B',offset=(-10,-10) )
bug.mark(C,'C',(-10,-20) )
bug.hide()
screen.mainloop()
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