how to change the time string into number?

[Denis McMahon]

On Thu, 14 Aug 2014 14:52:17 +0800, luofeiyu wrote:

> in the manual  https://docs.python.org/3.4/library/time.html
> 
> %z 	Time zone offset indicating a positive or negative time difference
> from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour
> digits and M represents decimal minute digits [-23:59, +23:59].
> %Z 	Time zone name (no characters if no time zone exists).
> 
> 
> t1='Sat, 09 Aug 2014  07:36:46  '
> time.strptime(t1,"%a, %d %b %Y %H:%M:%S ")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
>  >>> t2='Sat, 09 Aug 2014  07:36:46  -0700' time.strptime(t2,"%a, %d %b
>  >>> %Y %H:%M:%S %z")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
> t1 and t2 is different time ,the timezone in t2 is -0700 ,why we get the
> same result?
> 
>  >>> t3='Sat, 09 Aug 2014  07:36:46  +0400' time.strptime(t3,"%a, %d %b
>  >>> %Y %H:%M:%S %z")
> time.struct_time(tm_year=2014, tm_mon=8, tm_mday=9, tm_hour=7,
> tm_min=36, tm_sec =46, tm_wday=5, tm_yday=221, tm_isdst=-1)
> 
> 
> The Directive   %z  has no any effect here,what is the matter?

Please learn to use usenet properly. Comments go below the text they 
refer to.

What version of python are you using? I know what version of the 
documentation you are looking at, but as I explained inj an earlier post, 
the implementation varies between different python versions, and for 
example python 2.7 strptime seems to completely ignore the %z in the 
format string, so again, what version of python are you using?

To check your python version:

$ python
>>> import sys
>>> sys.version

will output something like:

'2.7.3 (default, Feb 27 2014, 19:58:35) \n[GCC 4.6.3]'

for Python 2.7 or:

'3.2.3 (default, Feb 27 2014, 21:31:18) \n[GCC 4.6.3]'

for Python 3.2. Again, I stress, we need to know what version of python 
you are using to help you!

Did you run the code I posted? Did you get the same output as me? If you 
didn't, what was different. If you did get the same output, what do you 
think is wrong with it?

-- 
Denis McMahon, denismfmcmahon at gmail.com