至少在python3中，这是有效的:

>>> datetime.strftime(datetime.utcnow(), "%s")
'1587503279'

或者仅仅使用datetime标准模块

In [2]: from datetime import timezone, datetime
   ...: int(datetime.now(tz=timezone.utc).timestamp() * 1000)
   ...: 
Out[2]: 1514901741720

您可以根据所需的分辨率进行截断或相乘。这个例子是输出millis。

如果你想要一个合适的Unix时间戳(以秒为单位)，可以去掉* 1000

Python 3秒微秒十进制分辨率:

from datetime import datetime
print(datetime.now().timestamp())

Python 3整数秒:

print(int(datetime.now().timestamp()))

datetime.utcnow().timestamp()警告!

Datetime.utcnow()是非时区感知对象。参考资料:https://docs.python.org/3/library/datetime.html#aware-and-naive-objects

例如UTC凌晨1点:

from datetime import timezone
print(datetime(1970,1,1,1,0,tzinfo=timezone.utc).timestamp())

or

print(datetime.fromisoformat('1970-01-01T01:00:00+00:00').timestamp())

if you remove the tzinfo=timezone.utc or +00:00, you'll get results dependent on your current local time. Ex: 1am on Jan 1st 1970 in your current timezone - which could be legitimate - for example, if you want the timestamp of the instant when you were born, you should use the timezone you were born in. However, the timestamp from datetime.utcnow().timestamp() is neither the current instant in local time nor UTC. For example, I'm in GMT-7:00 right now, and datetime.utcnow().timestamp() gives a timestamp from 7 hours in the future!

我喜欢这个方法:

import datetime, time

dts = datetime.datetime.utcnow()
epochtime = round(time.mktime(dts.timetuple()) + dts.microsecond/1e6)

这里发布的其他方法要么不保证在所有平台上为您提供UTC，要么只报告整个秒数。如果你想要完整的分辨率，这个可以做到微秒级。

import time

int(time.time()) 

输出:

1521462189

#First Example:
from datetime import datetime, timezone    
timstamp1 =int(datetime.now(tz=timezone.utc).timestamp() * 1000)
print(timstamp1)

输出:1572878043380

#second example:
import time
timstamp2 =int(time.time())
print(timstamp2)

输出:1572878043

在这里，我们可以看到第一个例子给出的时间比第二个更准确。 这里我用的是第一个。