python判断是否是闰年

#!/usr/bin/env python
ye = int(raw_input('Please enter the year:'))
if ye % 100 == 0:
        if (ye/100) % 4 == 0:
                print "your inputing is a leap year!"
        else:
                print "your inputing is not a leap year!"
elif ye % 4 == 0:
        print "your inputing is a leap year!"
else:
        print "your inputing is not a leap year!"