[Tutor] Formating from hhmms to hh:mm:ss

[John Fouhy]

2008/9/8 Wayne Watson <sierra_mtnview at sbcglobal.net>:
> def adjust_ftime(atime, sec):
>     # yyyymmdd_hhmmss, seconds in, new yyyymmdd_hhmmss out
>     ts = atime[1:-7]      # use time stamp portion
>     ayear   = int(ts[0:4])
>     amonth  = int(ts[4:6])
>     aday    = int(ts[6:8])
>     ahour   = int(ts[9:11])
>     aminute = int(ts[11:13])
>     asecond = int(ts[13:15])
>     print ayear, amonth, aday, asecond
>     dt1 = datetime.datetime(ayear, amonth, aday, ahour, aminute, asecond)
>     print dt1, type(dt1)
>     delta = datetime.timedelta(seconds = 200)
>     dt2 = dt1 + delta
>     print dt2, type(dt2)
>     print "what next? I need the result 20080321_113405"

Hi Wayne,

The functions you are looking for are strptime and strftime.  As follows:

>>> import datetime
>>> timeStr = '20080321_113045'
>>> dt1 = datetime.datetime.strptime(timeStr, '%Y%m%d_%H%M%S')
>>> dt2 = dt1 + datetime.timedelta(seconds=200)
>>> print dt2.strftime('%Y%m%d_%H%M%S')
20080321_113405

You can find the format codes for strptime and strftime in the
documentation for the time module.

Hope this helps!

-- 
John.