计算两个datetime.date（）日期之间的差异，以年和月为单位
问题描述：
我想计算两个datetime.date（）日期之间的差异，以年和月为单位。
I want to calculate the difference between two datetime.date() dates in years and months.
d1 = date(2001,5,1)
d2 = date(2012,1,1)
d3 = date(2001,1,1)
d4 = date(2012,5,1)
diff1 = d2 - d1
diff2 = d4 - d3
所需结果：
diff1 == 10 years & 8 months.
diff2 == 11 years & 4 months.
谢谢。
答
如果您能够安装出色的 dateutil 软件包，可以这样做： / p>
If you are able to install the excellent dateutil package, you can do this:
>>> from dateutil import relativedelta as rdelta
>>> from datetime import date
>>> d1 = date(2001,5,1)
>>> d2 = date(2012,1,1)
>>> rd = rdelta.relativedelta(d2,d1)
>>> "{0.years} years and {0.months} months".format(rd)
'10 years and 8 months'