Python 的 timedelta：我不能以任何时间单位获取我想要的整个差异的值吗？
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Python's timedelta: can't I just get in whatever time unit I want the value of the entire difference?
提问by Bjorn
I am trying to have some clever dates since a post has been made on my site ("seconds since, hours since, weeks since, etc..") and I'm using datetime.timedelta difference between utcnow and utc dated stored in the database for a post.
自从在我的网站上发布帖子以来，我正在尝试使用一些巧妙的日期（“几秒钟之后，几小时之后，几星期之后，等等。”）并且我正在使用 datetime.timedelta utcnow 和 utc 日期之间的差异存储在一个帖子的数据库。
Looks like, according to the docs, I have to use the days attribute AND the seconds attribute, to get the fancy date strings I want.
看起来，根据文档，我必须使用 days 属性和 seconds 属性来获取我想要的花哨的日期字符串。
Can't I just get in whatever time unit I want the value of the entire difference? Am I missing something?
我不能在任何时间单位中获得我想要的整个差异的价值吗？我错过了什么吗？
It would be perfect if I could just get the entire difference in seconds.
如果我能在几秒钟内获得整个差异就完美了。
回答by Ham
It seems that Python 2.7 has introduced a total_seconds()method, which is what you were looking for, I believe!
似乎Python 2.7引入了一个total_seconds()方法，这就是你要找的，我相信！
回答by S.Lott
You can compute the difference in seconds.
您可以计算出以秒为单位的差异。
total_seconds = delta.days * 86400 + delta.seconds
No, you're no "missing something". It doesn't provide deltas in seconds.
不，你没有“遗漏了什么”。它不会在几秒钟内提供增量。
回答by bobince
It would be perfect if I could just get the entire difference in seconds.
如果我能在几秒钟内获得整个差异就完美了。
Then plain-old-unix-timestamp as provided by the 'time' module may be more to your taste.
然后，'time' 模块提供的纯旧 unix-timestamp 可能更符合您的口味。
I personally have yet to be convinced by a lot of what's in 'datetime'.
我个人还没有被“日期时间”中的很多内容所说服。
回答by itsadok
Like bobince said, you could use timestamps, like this:
就像 bobince 说的，你可以使用时间戳，像这样：
# assuming ts1 and ts2 are the two datetime objects
from time import mktime
mktime(ts1.timetuple()) - mktime(ts2.timetuple())
Although I would think this is even uglier than just calculating the seconds from the timedeltaobject...
虽然我认为这比仅仅从timedelta对象计算秒数更丑陋......
