2009/4/28 Mark Dickinson <dickinsm at gmail.com>: > Here's one more proposed change, this time for formatting > of floats using format() and the empty presentation type. > To avoid repeating myself, here's the text from the issue > I just opened: > > http://bugs.python.org/issue5864 > > """ > In all versions of Python from 2.6 up, I get the following behaviour: > >>>> format(123.456, '.4') > '123.5' >>>> format(1234.56, '.4') > '1235.0' >>>> format(12345.6, '.4') > '1.235e+04' > > The first and third results are as I expect, but the second is somewhat > misleading: it gives 5 significant digits when only 4 were requested, > and moreover the last digit is incorrect. > > I propose that Python 2.7 and Python 3.1 be changed so that the output > for the second line above is '1.235e+03'. > """ > > This issue seems fairly clear cut to me, and I doubt that there's been > enough uptake of 'format' yet for this to risk significant breakage. So > unless there are objections I'll plan to make this change before this > weekend's beta. +1
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