Examples
import numpy as np
import pandas as pd
x = pd.Series([2, 3, 4])
x
x.searchsorted(3)
x.searchsorted([2, 4])
x.searchsorted([2, 3], side='left')
x.searchsorted([2, 3], side='right')
x = pd.Categorical(['tea', 'bread', 'butter', 'milk'], ordered=True)
x.searchsorted('butter')
x.searchsorted(['bread'], side='right')