[Python-ideas] Moving calendar.timegm() to time module Was: Rename time module to "posixtime"

[M.-A. Lemburg]

Alexander Belopolsky wrote:
> On Wed, Jun 16, 2010 at 1:37 PM, Brett Cannon <brett at python.org> wrote:
> ..
>>> The only improvement I could see, would be to move
>>> calendar.timegm() to the time module, since that's where
>>> it belongs (keeping an alias in the calendar module, of
>>> course).
>>
>> That should definitely happen at some point.
>>
> 
> This is discussed in Issue 6280 <http://bugs.python.org/issue6280>.
> There are several issues with this proposal:
> 
> 1. According to help(time),
> 
> """
>     The Epoch is system-defined; on Unix, it is generally January 1st, 1970.
>     The actual value can be retrieved by calling gmtime(0).
> """
> 
> Current calendar.gmtime implementation ignores this.  The solution to
> this, may be to change help(time), though.
> 
> 2. Current calendar.gmtime supports float values for hours, minutes
> and seconds in timedelta tuple.  This is probably an unintended
> implementation artifact, but it is relied upon even in stdlib.  See
> http://bugs.python.org/issue6280#msg107808 .

I think you have this mixed up: I was suggesting to
move calendar.timegm() to the time module, not
the non existing calendar.gmtime() :-)

If you're looking for a portable implementation in C that doesn't
mess with TZ hacks, have a look at the mxDateTime sources.

-- 
Marc-Andre Lemburg
eGenix.com

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