How do I convert a datetime.date object into a time.struct_time object?

I have a python script which I need to compare two dates. I have a list dates as time.struct_time objects which I need to compare to a few datetime.da开发者_如何转开发te objects.

How do I convert the datetime.date objects into a time.struct_time objects? Or can I just use them as is for comparison?

Try using date.timetuple(). From the Python docs:

Return a time.struct_time such as returned by time.localtime(). The hours, minutes and seconds are 0, and the DST flag is -1. d.timetuple() is equivalent to time.struct_time((d.year, d.month, d.day, 0, 0, 0, d.weekday(), yday, -1)), where yday = d.toordinal() - date(d.year, 1, 1).toordinal() + 1 is the day number within the current year starting with 1 for January 1st.

Example for converting date objects to time.struct_time objects :

#### Import the necessary modules
>>> dt = date(2008, 11, 10)
>>> time_tuple = dt.timetuple()
>>> print repr(time_tuple)
'time.struct_time(tm_year=2008, tm_mon=11, tm_mday=10, tm_hour=0, tm_min=0, tm_sec=0,     
 tm_wday=0, tm_yday=315, tm_isdst=-1)'

Refer this link for more examples: http://www.saltycrane.com/blog/2008/11/python-datetime-time-conversions/

Please see the documentation for the time Python module, which indicates that you can use calendar.timegm or time.mktime to convert the time.struct_time object to seconds since the epoch (which function you use depends on whether your struct_time is in a timezone or in UTC time). You can then use datetime.datetime.time on the other object, and compare in seconds since the epoch.

Use strftime from "datetime". It has various attributes and the respective data can be fetched using directives. See this cheat-sheet for a full list of directives that can be used with the strftime method. Note that the directives shall be passed to strftime as a string in single quotes.

Example:

import datetime as dt
today = dt.datetime.today()
print(today.strftime('%H')) #prints hour 0-23
print(today.strftime('%m')) #prints month number 1-12
print(today.strftime('%M')) #prints minute 0-59