在Python中爲日期添加5天

本文翻譯自：Adding 5 days to a date in Python

I have a date "10/10/11(mdy)" and I want to add 5 days to it using a Python script. 我的日期爲"10/10/11(mdy)" ，我想使用Python腳本爲其添加5天。 Please consider a general solution that works on the month ends also. 請考慮在月底也可以使用的一般解決方案。

I am using following code: 我正在使用以下代碼：

import re
from datetime import datetime

StartDate = "10/10/11"

Date = datetime.strptime(StartDate, "%m/%d/%y")

print Date -> is printing '2011-10-10 00:00:00' print Date ->正在打印'2011-10-10 00:00:00'

Now I want to add 5 days to this date. 現在，我想在此日期之前增加5天。 I used the following code: 我使用以下代碼：

EndDate = Date.today()+timedelta(days=10)

Which returned this error: 哪個返回此錯誤：

name 'timedelta' is not defined

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#1樓

參考：https://stackoom.com/question/SpSq/在Python中爲日期添加-天

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#2樓

If you happen to already be using pandas , you can save a little space by not specifying the format: 如果您碰巧已經在使用pandas ，則可以通過不指定格式來節省一些空間：

import pandas as pd
startdate = "10/10/2011"
enddate = pd.to_datetime(startdate) + pd.DateOffset(days=5)

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#3樓

Here is a function of getting from now + specified days 這是從現在開始+指定天數的功能

import datetime

def get_date(dateFormat="%d-%m-%Y", addDays=0):

    timeNow = datetime.datetime.now()
    if (addDays!=0):
        anotherTime = timeNow + datetime.timedelta(days=addDays)
    else:
        anotherTime = timeNow

    return anotherTime.strftime(dateFormat)

Usage: 用法：

addDays = 3 #days
output_format = '%d-%m-%Y'
output = get_date(output_format, addDays)
print output

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#4樓

Here is another method to add days on date using dateutil's relativedelta . 這是另一種使用dateutil的relativedelta添加日期的方法。

from datetime import datetime
from dateutil.relativedelta import relativedelta

print 'Today: ',datetime.now().strftime('%d/%m/%Y %H:%M:%S') 
date_after_month = datetime.now()+ relativedelta(days=5)
print 'After 5 Days:', date_after_month.strftime('%d/%m/%Y %H:%M:%S')

Output: 輸出：

Today: 25/06/2015 15:56:09 今天：25/06/2015 15:56:09

After 5 Days: 30/06/2015 15:56:09 5天后：30/06/2015 15:56:09

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#5樓

In order to have have a less verbose code , and avoid name conflicts between datetime and datetime.datetime , you should rename the classes with CamelCase names. 爲了減少冗長的代碼 ，並避免datetime和datetime.datetime之間的 名稱衝突 ，應使用CamelCase名稱重命名這些類。

from datetime import datetime as DateTime, timedelta as TimeDelta

So you can do the following, which I think it is clearer. 因此，您可以執行以下操作，我認爲這更清楚。

date_1 = DateTime.today() 
end_date = date_1 + TimeDelta(days=10)

Also, there would be no name conflict if you want to import datetime later on. 另外，如果您以後要import datetime時間，則不會發生名稱衝突 。

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#6樓

If you want add days to date now, you can use this code 如果要立即添加日期，可以使用此代碼

from datetime import datetime
from datetime import timedelta


date_now_more_5_days = (datetime.now() + timedelta(days=5) ).strftime('%Y-%m-%d')