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Groups > comp.lang.python > #89539

str more precise in 3 as 2.7

From Cecil Westerhof <Cecil@decebal.nl>
Newsgroups comp.lang.python
Subject str more precise in 3 as 2.7
Organization Decebal Computing
Date 2015-04-29 13:24 +0200
Message-ID <87twvzch2u.fsf@Equus.decebal.nl> (permalink)

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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

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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

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