New submission from Jakub Szewczyk <[email protected]>:
.2f produces a string representation of a float rounded up to 2 significant
digits.
>>> print ("{:.2f}".format(1.891))
1.89
However, it does not respect locale. There is no counterpart of 'f' that would
respect locale. There is 'n', but because it follows the rules of 'g', in many
cases it returns a different number of significant digits.
>>> print ("{:.2n}".format(1.891))
1.9
In all my uses of formatted float printing, I need to produce floats that are
rounded to have the same number of significant digits. I _presume_ this
generalizes to the majority people, and the use of 'f' option is much more
widespread than the use of 'g'. If this is the case, then a locale-friendly
counterpart of 'f' would be very useful.
----------
components: Extension Modules
messages: 318407
nosy: Jakub Szewczyk, eric.smith
priority: normal
severity: normal
status: open
title: string formatting that produces floats with preset precision while
respecting locale
type: enhancement
versions: Python 3.6
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Python tracker <[email protected]>
<https://bugs.python.org/issue33731>
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