I have below code and output, I would like to learn how to make it animated.

def plot_class_distribution(data_path):
    class_counts = {}

    # Count the number of images in each class
    for directory in os.listdir(data_path):
        if os.path.isdir(os.path.join(data_path, directory)):
            class_counts[directory] = len(os.listdir(os.path.join(data_path, directory)))

    # Plot the class distribution as a pie chart
    plt.figure(figsize=(8, 6))  # Set the figure size here
    plt.pie(class_counts.values(), labels=class_counts.keys(), autopct='%1.1f%%', startangle=140,
           textprops={'fontsize': 8})
    plt.title('ASL Class Distribution')
    plt.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle.
    plt.tight_layout()
    plt.show()
plot_class_distribution(data_path)

I have attempted with below code but it failed to output anything.

import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
import matplotlib.cm as cm
import os

def update(frame):
    ax.clear()
    ax.pie(frame, labels=class_counts.keys(), autopct='%1.1f%%', startangle=140, textprops={'fontsize': 8})
    ax.set_title('ASL Class Distribution')

def plot_class_distribution(data_path):
    global class_counts, ax
    
    class_counts = {}

    # Count the number of images in each class
    for directory in os.listdir(data_path):
        if os.path.isdir(os.path.join(data_path, directory)):
            class_counts[directory] = len(os.listdir(os.path.join(data_path, directory)))
    
    fig, ax = plt.subplots(figsize=(8, 6))
    ani = FuncAnimation(fig, update, frames=class_counts.values(), repeat=False)
    plt.show()

plot_class_distribution(data_path)