On 5/14/2021 5:29 PM, Ethan Furman wrote:
On 5/14/21 5:12 AM, Martin Teichmann wrote:
> In order to showcase how that would look like, let me give an
example session:
>
> >>> 5/6-4/15
> 17/30
> >>> a=22/7
> >>> f"{a}"
> '22/7'
> >>> f"{a:f}"
> '3.142857'
> >>> from decimal import Decimal
> >>> Decimal(1/3)
> Decimal('0.3333333333333333333333333333')
This looks very interesting! I see some confusion on all sides on
what, exactly, you are proposing. As best as I can figure, the rules
for your conversions are something like (where .div. is division and
.op. is any other operation):
1) int .div. int --> fraction
2) int .op. fraction --> fraction
3) fraction .op. non-fraction --> float
What I am not sure of:
4) fraction .op. fraction --> ???
5) fraction .op. non-fraction --> ???
Am I correct on 1-3? What are you proposing as regards 4 and 5?
My understanding of the proposal is that OP is only talking about
<literal-integer> / <literal-integer> becomes a Fraction. So:
x=1
x/2 # unchanged, still yields a float.
It's only literals like "1/2" that would become Fraction(1,2).
Eric
_______________________________________________
Python-ideas mailing list -- python-ideas@python.org
To unsubscribe send an email to python-ideas-le...@python.org
https://mail.python.org/mailman3/lists/python-ideas.python.org/
Message archived at
https://mail.python.org/archives/list/python-ideas@python.org/message/OHNM7A2NJHTYEAUFGFJPDDPQLRDASCKJ/
Code of Conduct: http://python.org/psf/codeofconduct/
