python - AttributeError: '_Screen' object has no attribute 'mainloop' -


i'm designing simple python program uses turtle graphics module draw lines on screen arrow keys.

import turtle  turtle.setup(400,500)                # determine window size wn = turtle.screen()                 # reference window wn.title("handling keypresses!")     # change window title wn.bgcolor("lightgreen")             # set background color tess = turtle.turtle()               # create our favorite turtle  # next 4 functions our "event handlers". def h1():    tess.forward(30)  def h2():    tess.left(45)  def h3():    tess.right(45)  def h4():     wn.bye()                        # close down turtle window  # these lines "wire up" keypresses handlers we've defined. wn.onkey(h1, "up") wn.onkey(h2, "left") wn.onkey(h3, "right") wn.onkey(h4, "q")  # need tell window start listening events, # if of keys we're monitoring pressed, # handler called. wn.listen() wn.mainloop()

when try execute it, following error returned.

traceback (most recent call last):   file "c:\users\noah huber-feely\desktop\pen_programming\python\etchy_sketch1.py", line 32, in <module>     wn.mainloop() attributeerror: '_screen' object has no attribute 'mainloop'

i'm using python 2.7 , have had no trouble turtle graphics before. have begun working key input problem has occurred.

searching on web, found articles different issues , modules 1 experiencing.

let me know if need more information. thanks!

it's still turtle.mainloop(), not wn.mainloop().

i suspect reason since can make multiple screens, makes sense still have turtle module manage of screens instead of trying potentially make multiple mainloops work together.


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