homepage

I noticed some odd behaviour when running some turtle code I wrote using python 3.5. A simplified example:
>>> from turtle import Turtle
>>> t = Turtle()
>>> t.getscreen().bye() # or manually close the turtle window
>>> t2 = Turtle()
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
 File "/usr/lib64/python3.5/turtle.py", line 3816, in __init__
 visible=visible)
 File "/usr/lib64/python3.5/turtle.py", line 2557, in __init__
 self._update()
 File "/usr/lib64/python3.5/turtle.py", line 2660, in _update
 self._update_data()
 File "/usr/lib64/python3.5/turtle.py", line 2646, in _update_data
 self.screen._incrementudc()
 File "/usr/lib64/python3.5/turtle.py", line 1292, in _incrementudc
 raise Terminator
turtle.Terminator
>>>
This code works under 3.4, opening a new turtle window the second time Turtle() is called. Under 3.5, a blank white window opens.
This seems to be related to https://hg.python.org/cpython/rev/1628484c9408, as the only point that raises Terminator is guarded by a check for `if not TurtleScreen._RUNNING:`