文档：http://labix.org/python-dateutil
pypi: https://pypi.org/project/python-dateutil/

安装

pip install python-dateutil

  

 

  
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代码示例

from datetime import datetime, date
from dateutil.relativedelta import relativedelta

now = datetime.now()
print(now)
print(now - relativedelta(months=3))
"""
2019-01-09 18:13:28.791192
2018-10-09 18:13:28.791192
"""

today = date.today()
print(today)
print(today - relativedelta(months=3))

"""
2019-01-09
2018-10-09
"""

  

 

  
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参考：

1. python 时间处理之月份加减
2. Python 月份加减

文章来源: pengshiyu.blog.csdn.net，作者：彭世瑜，版权归原作者所有，如需转载，请联系作者。

原文链接：pengshiyu.blog.csdn.net/article/details/86168574