pandas get quarter dates from date code example

Example 1: how to get quarter year date in pandas

for m in range(1, 13):
  print (m-1)//3 + 1,
print

Example 2: how to get quarter year date in pandas

import datetime as dt
import pandas as pd

quarter = pd.Timestamp(dt.date(2016, 2, 29)).quarter
assert quarter == 1