python2, matplotlib animation histogram , AttributeError 'int' object has no attribute 'set animated

Exception in Tkinter callback
Traceback (most recent call last):
func(*args)
draw(artist, renderer, *args, **kwargs)
proxy(*args, **kwargs)
return mtd(*args, **kwargs)
self._init_draw()
AttributeError: 'int' object has no attribute 'set_animated'
Exception in Tkinter callback
Traceback (most recent call last):
proxy(*args, **kwargs)
return mtd(*args, **kwargs)
self._init_draw()
AttributeError: 'int' object has no attribute 'set_animated'