Python/西暦

import datetime

seireki = datetime.date.today().year
print(seireki);

heisei = seireki -1988
print("平成" + str(heisei) + "年")


import datetime
for seireki in range(1982, datetime.date.today().year + 1):
    print("西暦" + str(seireki) + "年は", end = "")
    heisei = seireki -1988
    if heisei < 1:
        print("昭和" + str(63 + heisei) + "年")
    else:
        print("平成" + str(heisei) + "年")