Matplotlib make several graphics and use the arrow to change - Python

Question

I have a text and I want to make a graphic of the letter-frequency every n sentences. I have this code to make one graphic:

def graphic(dic):
    x = list(range(len(dic)))
    liste = []
    valeur = []
    for i in dic:
        liste += [(dic[i],i)]
        valeur += [dic[i]]
    liste.sort()
    liste.reverse()
    valeur.sort()
    valeur.reverse()
    my_xticks = []
    for i in liste:
        my_xticks += i[1]
    xticks(x, my_xticks)
    plot(x,valeur); show()
    return liste,valeur

It returns me this:

My point is, I want to use the arrows on the top of the window to change to one graphic to an other. Is this possible?

For example, I have a text with 10 sentences, and I want to make a graphic every 1 sentence. So, I'll have 10 graphics and I want to be able to navigate with the arrows but when I just call the function twice, it draws me 2 graph on the same page.

Answer 1

You can access the buttons and change their callbacks:

import matplotlib.pyplot as plt

def callback_left_button(event):
    ''' this function gets called if we hit the left button'''
    print('Left button pressed')


def callback_right_button(event):
    ''' this function gets called if we hit the left button'''
    print('Right button pressed')

fig = plt.figure()

toolbar_elements = fig.canvas.toolbar.children()
left_button = toolbar_elements[6]
right_button = toolbar_elements[8]

left_button.clicked.connect(callback_left_button)
right_button.clicked.connect(callback_right_button)