如何在Python中根据字长制作直方图？

import matplotlib.pyplot as plt

data = [4, 7, 2, 5, 1, 6, 3, 5, 2, 4, 6, 7, 3, 5, 2, 1, 4, 6, 8, 3]

bin_width = 2  # 每个直方的宽度
bins = range(min(data), max(data) + bin_width, bin_width)  # 直方的边界

plt.hist(data, bins=bins, edgecolor='black')
plt.xlabel('Value')
plt.ylabel('Frequency')
plt.title('Histogram of Data')
plt.show()