在当前日期添加一年PYTHON [英] Add one year in current date PYTHON

问题描述

我从数据库中获取了日期，并使用以下变量

I have fetched a date from database with the following variable

{{ i.operation_date }}

价值如

April 1, 2013

我需要在上面添加一年，以便我可以获得

I need to add one year to the above, so that I can get

April 1, 2014

请建议，我该怎么做？

推荐答案

AGSM的答案显示了一种方便的方法来解决此问题 python-dateutil 包。但是如果您不想安装该包，该怎么办？你可以像这样解决这个问题：

AGSM's answer shows a convenient way of solving this problem using the python-dateutil package. But what if you don't want to install that package? You could solve the problem in vanilla Python like this:

from datetime import date

def add_years(d, years):
    """Return a date that's `years` years after the date (or datetime)
    object `d`. Return the same calendar date (month and day) in the
    destination year, if it exists, otherwise use the following day
    (thus changing February 29 to March 1).

    """
    try:
        return d.replace(year = d.year + years)
    except ValueError:
        return d + (date(d.year + years, 1, 1) - date(d.year, 1, 1))

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