Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!selfless.tophat.at!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.007
X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'implements': 0.05; 'operations.': 0.05; 'delta': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:80.91.229.12': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'received:lo.gmane.org': 0.09; 'def': 0.13; "'int'": 0.16; '(1,': 0.16; '30)': 0.16; '3600,': 0.16; '60,': 0.16; 'from:addr:yahoo.com.ar': 0.16; 'traceback': 0.16; '(most': 0.16; 'tue,': 0.20; 'last):': 0.23; "i'm": 0.26; 'problem': 0.29; 'class': 0.29; 'charset:iso-8859-15': 0.31; 'operand': 0.31; 'typeerror:': 0.31; 'import': 0.32; 'to:addr:python-list': 0.32; 'using': 0.34; 'header:X-Complaints-To:1': 0.34; 'file': 0.35; 'header:User-Agent:1': 0.35; '"",': 0.35; 'mathematical': 0.38; 'received:org': 0.38; 'to:addr:python.org': 0.39; 'header:Mime- Version:1': 0.39; 'how': 0.39; 'add': 0.39; 'header:Received:5': 0.40; '2011': 0.62; '30,': 0.80; '-0300,': 0.84; 'datetime': 0.84; 'genellina': 0.84; 'hours)': 0.84; 'gabriel': 0.91; 'received:186': 0.91; 'type(s)': 0.91
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: "Gabriel Genellina" <gagsl-py2@yahoo.com.ar>
Subject: Re: Datetime.timedelta
Date: Tue, 17 May 2011 08:44:48 -0300
References: <BANLkTimhrWrXrtLWtdzO3nJdX206U05biA@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes
Content-Transfer-Encoding: 8bit
X-Gmane-NNTP-Posting-Host: 186.19.171.200
User-Agent: Opera Mail/11.10 (Win32)
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.1667.1305632687.9059.python-list@python.org>
Lines: 41
NNTP-Posting-Host: 82.94.164.166
X-Trace: 1305632687 news.xs4all.nl 49175 [::ffff:82.94.164.166]:38849
X-Complaints-To: abuse@xs4all.nl
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:5559

En Tue, 17 May 2011 07:44:08 -0300, Tsolmon Narantsogt <mnts26@gmail.com>  
escribió:

> I'm using datetime.timedelta and i have a problem
>
> delta = 1 day, 2:30:00
> hours = delta.days * 8
>
> how to add 8 + 2:30:00

Just operate with it as it were a number. The timedelta class implements  
all "sane" mathematical operations.

py> from datetime import *
py> def timedelta_from_dhms(days=0, hours=0, mins=0, secs=0):
...   return timedelta(days, hours*3600 + mins*60 + secs)
...
py> delta = timedelta_from_dhms(1, 2, 30)
py> delta
datetime.timedelta(1, 9000)
py> hours = delta.days * 8
py> delta + hours
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for +: 'datetime.timedelta' and  
'int'
py> hours = timedelta_from_dhms(0, delta.days * 8)
py> hours
datetime.timedelta(0, 28800)
py> delta + hours
datetime.timedelta(1, 37800)
py> def dhms_from_timedelta(td):
...   return td.days, td.seconds // 3600, (td.seconds % 3600) // 60,  
td.seconds % 60
...
py> dhms_from_timedelta(delta + hours)
(1, 10, 30, 0)

-- 
Gabriel Genellina