python2 , matplotlib, animation, bayes update, FuncAnimation , bug hunting

Traceback (most recent call last):
File "./bayes_update_bughunting.py", line 38, in module
ud = UpdateDist(ax, prob=0.7)
TypeError: UpdateDist() takes no arguments



Traceback (most recent call last):
File "./bayes_update_bughunting.py", line 39, in module
ud = UpdateDist(ax, prob=0.7)
File "./bayes_update_bughunting.py", line 18, in __init__
self.ax_set_xlim(0,1)
AttributeError: 'UpdateDist' object has no attribute 'ax_set_xlim'


Exception in Tkinter callback
Traceback (most recent call last):
File "/home/demo/miniconda3/lib/python3.7/tkinter/__init__.py", line 1705, in __call__
return self.func(*args)
File "/home/demo/miniconda3/lib/python3.7/tkinter/__init__.py", line 749, in callit
func(*args)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/backends/_backend_tk.py", line 99, in _on_timer
TimerBase._on_timer(self)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/backend_bases.py", line 1194, in _on_timer
ret = func(*args, **kwargs)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1418, in _step
still_going = Animation._step(self, *args)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1149, in _step
self._draw_next_frame(framedata, self._blit)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1168, in _draw_next_frame
self._draw_frame(framedata)
File "/home/demo/miniconda3/lib/python3.7/site-packages/matplotlib/animation.py", line 1718, in _draw_frame
self._drawn_artists = self._func(framedata, *self._args)
File "./bayes_update_bughunting.py", line 36, in __call__
y - ss.beta.pdf(self.x , self.success + 1 , ( i -self.success ) + 1)
NameError: name 'y' is not defined