python - 本月的周数 [英] python - Week number of the month

问题描述

python 是否提供一种方法来轻松获取当前当月的一周(1:4)?

Does python offer a way to easily get the current week of the month (1:4) ?

推荐答案

为了使用直线除法，您正在查看的日期的月份中的某天需要根据日期的位置(一周内)进行调整每月的第一天.因此，如果您的月份恰好从星期一(一周的第一天)开始，您可以按照上面的建议进行除法.但是，如果该月从星期三开始，您需要添加 2 然后进行除法.这一切都封装在下面的函数中.

In order to use straight division, the day of month for the date you're looking at needs to be adjusted according to the position (within the week) of the first day of the month. So, if your month happens to start on a Monday (the first day of the week), you can just do division as suggested above. However, if the month starts on a Wednesday, you'll want to add 2 and then do the division. This is all encapsulated in the function below.

from math import ceil

def week_of_month(dt):
    """ Returns the week of the month for the specified date.
    """

    first_day = dt.replace(day=1)

    dom = dt.day
    adjusted_dom = dom + first_day.weekday()

    return int(ceil(adjusted_dom/7.0))

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