Vedran Čačić added the comment:
Yes, although it can be viewed as a bugfix, it's impossible on Python 2. We
_can_ do it on Python 2 too, with
def __new__(cls, numerator=0, denominator=None, *empty, _normalize=True):
if empty:
raise TypeError('too many positional arguments')
...
but I'm not interested in it [and honestly, I'm sick of uglifying my code just
to be able to run it on Py2]. Also, Mark Dickinson said
(http://bugs.python.org/issue27539#msg273282) it shouldn't even be changed on
Py3.5, so surely then it shouldn't be changed on Py2.7. :-)
I think no deprecation is needed: it isn't
(https://docs.python.org/3.5/library/fractions.html?highlight=fraction#fractions.Fraction),
and as far as I know has never been, documented.
----------
components: +Library (Lib)
versions: +Python 3.6
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