在没有时间的情况下在python中创建日期
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create date in python without time
提问by ruby student
I need to get the current date without time and then compare that date with other entered by user
我需要获取没有时间的当前日期，然后将该日期与用户输入的其他日期进行比较
import datetime
now = datetime.datetime.now()
Example
例子
currentDate="01/08/2015"
userDate="01/07/2015"
if currentData > userDate:
.........
else:
...................
采纳答案by Anand S Kumar
You can use datetime.dateobjects , they do not have a time part.
您可以使用datetime.date对象，它们没有时间部分。
You can get current date using datetime.date.today(), Example -
您可以使用datetime.date.today()，例如 -
now = datetime.date.today()
This would give you an object of type - datetime.date. And you can get the date()part of a datetimeobject , by using the .date()method , and then you can compare both dates.
这会给你一个类型 - 的对象datetime.date。您可以通过使用方法获取对象的date()一部分，然后您可以比较两个日期。datetime.date()
Example -
例子 -
now = datetime.date.today()
currentDate = datetime.datetime.strptime('01/08/2015','%d/%m/%Y').date()
Then you can compare them.
然后你可以比较它们。
Also, to convert the string to a date , you should use dateimte.strptime()as I have used above , example -
此外，要将字符串转换为日期，您应该dateimte.strptime()像我上面使用的那样使用，例如 -
currentDate = datetime.datetime.strptime('01/08/2015','%d/%m/%Y').date()
This would cause, currentDateto be a datetime.dateobject.
这将导致，currentDate成为一个datetime.date对象。
Example/Demo -
示例/演示 -
>>> now = datetime.date.today()
>>> currentDate = datetime.datetime.strptime('01/08/2015','%d/%m/%Y').date()
>>> now > currentDate
False
>>> now < currentDate
False
>>> now == currentDate
True
回答by TigerhawkT3
If you want to compare dates, then compare dates, not strings. Use datetime.datetime.strptime()to parse the user's entered date.
如果要比较日期，请比较日期，而不是字符串。使用datetime.datetime.strptime()解析用户输入的日期。
import datetime
now = datetime.datetime.now()
userDate = "01/07/2015"
if datetime.datetime.strptime(userDate, '%m/%d/%Y') < now:
...
