python簡單判斷輸入年份是否爲閏年

"""
閏年：
能被4整除，而且不能被100整除
或者
能被4整除，而且又能被400整除
"""
while 1:
    this_time = int(input("請輸入年份："))
    #條件1
    condition1 = this_time%4 == 0 and this_time%100 != 0
    #條件2
    condition2 = this_time%4 == 0 and this_time%400 == 0
    if (condition1 or condition2):
        print("%d年是閏年"%(this_time))
    else:
        print("%d年不是閏年"%(this_time))