I think this might be possible with a class or funvtion but idk how Here is my code:
import numpy as np
rainfall = np.array([5.21, 3.76, 3.27, 2.35, 1.89, 1.55, 0.65, 1.06, 1.72, 3.35, 4.82, 5.11])
rain_mean = np.mean(rainfall)
rain_median = np.median(rainfall)
first_quarter = np.percentile(rainfall, 25)
third_quarter = np.percentile(rainfall, 75)
interquartile_range = third_quarter - first_quarter
rain_std = np.std(rainfall)
print rain_mean, rain_median, first_quarter, third_quarter, interquartile_range, rain_std