Public bug reported:

To get a high frame rate for my animation I use a low value for 'interval' for 
'FuncAnimation'. If interval is too low p.ex. 10, I get the following 
Exception, when (and only when) I close the window:


invalid command name "140613997300232_on_timer"
    while executing
"140613997300232_on_timer"
    ("after" script)
Traceback (most recent call last):
  File "./monitor.py", line 93, in <module>
    plt.show()
  File "env/lib/python3.5/site-packages/matplotlib/pyplot.py", line 253, in show
    return _show(*args, **kw)
  File "env/lib/python3.5/site-packages/matplotlib/backend_bases.py", line 163, 
in __call__
    manager.show()
  File "env/lib/python3.5/site-packages/matplotlib/backends/backend_tkagg.py", 
line 610, in show
    self.canvas.manager.window.attributes('-topmost', 1)
AttributeError: 'NoneType' object has no attribute 'attributes'


matplotlib==2.0.0

** Affects: matplotlib (Ubuntu)
     Importance: Undecided
         Status: New

** Bug watch added: github.com/matplotlib/matplotlib/issues #8107
   https://github.com/matplotlib/matplotlib/issues/8107

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https://bugs.launchpad.net/bugs/1666230

Title:
  invalid command name "..._on_timer" in FuncAnimation for (too) small
  interval

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