迭代日期时间-TypeError：必须为整数

Question

I wish to create a series of epoch time stamps from a datetime object.

I can do this with one datetime like so:

start_time = calendar.timegm(datetime.datetime(2015,9,30,0).timetuple())

returning:

1443571200

I wish to iterate over a list of datetimes to create a series of epoch time stamps.

slices = [(2015,9,30,0),(2015,10,04,23)]

for time_slice in slices:
    start_time = calendar.timegm(datetime.datetime(time_slice).timetuple())

However, this returns a TypeError: an integer is required

How do I iteratively use the calendar and datetime modules to create epoch time stamps?

Answer 1

You can use the following list comprehension . Simply unpack the item and pass it to the datetime constructor:

>>> from calendar import timegm
>>> from datetime import datetime
>>> start_times  = [timegm(datetime(*slc).timetuple()) for slc in slices] 
>>> start_times
[1443571200, 1443999600]