Answer: Here's an example code:
import matplotlib.pyplot as plt
import numpy as np
# Generate sample data
data = [np.random.normal(0, std, 100) for std in range(1, 4)]
# Create a box plot
plt.boxplot(data, vert=True, patch_artist=True)
# Add title and labels
plt.title('Box plot of sample data')
plt.xlabel('Sample')
plt.ylabel('Value')
# Show the plot
plt.show()