str more precise in 3 as 2.7

Cecil Westerhof Cecil at decebal.nl
Wed Apr 29 13:24:57 CEST 2015


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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