str more precise in 3 as 2.7

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!feeds.phibee-telecom.net!news.panservice.it!feed.xsnews.nl!border02.ams.xsnews.nl!feeder04.ams.xsnews.nl!abp002.ams.xsnews.nl!frontend-F09-18.ams.news.kpn.nl
From	Cecil Westerhof <Cecil@decebal.nl>
Newsgroups	comp.lang.python
Subject	str more precise in 3 as 2.7
Organization	Decebal Computing
X-Face	"(y8cC@tg_12{">GF'UXTW]FHI2wMiZNrnf'1EFQ&O#$m:f#O7+7}kR<J%a^F2lh4[N~Yz4 nSp#c+aQo1b5=?HcNEkQ7QzF<])O3X4MDL/AYjys&*mt>,v+Pti8=Vi/Z"g^?b"E
X-Homepage	http://www.decebal.nl/
Date	Wed, 29 Apr 2015 13:24:57 +0200
Message-ID	<87twvzch2u.fsf@Equus.decebal.nl> (permalink)
User-Agent	Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
Cancel-Lock	sha1:n+KGM4Q+fL92fJHDssYJc9qBw8A=
MIME-Version	1.0
Content-Type	text/plain
Lines	26
NNTP-Posting-Host	81.207.62.244
X-Trace	1430306929 news.kpn.nl 18083 81.207.62.244@kpn/81.207.62.244:42316
Xref	csiph.com comp.lang.python:89539

Show key headers only | View raw

I am trying to make my modules also work under Python 3. I found that
str is more precise in Python 3. The expression:
    str(134 / 6.0)
gives in 2.7.8:
    '22.3333333333'
and in 3.4.1:
    '22.333333333333332'

Was not very hard to solve:
    if python_version == 3:
        output06[5] = '22.333333333333332'
        output10[5] = '23.333333333333332'
        output10[8] = '24.77777777777778'

Earlier I did:
    import sys

    # For when the difference between 2 and 3 is important
    python_version = sys.version_info[0]

At the moment I use it only once, but it is never bad to be prepared.

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

str more precise in 3 as 2.7 Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 13:24 +0200
  Re: str more precise in 3 as 2.7 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-04-29 12:50 +0100
  Re: str more precise in 3 as 2.7 Chris Angelico <rosuav@gmail.com> - 2015-04-29 21:55 +1000
    Re: str more precise in 3 as 2.7 Cecil Westerhof <Cecil@decebal.nl> - 2015-04-29 14:09 +0200
  Re: str more precise in 3 as 2.7 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-04-30 14:29 +1000

csiph-web