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gh-122450: Fix docs to state denominator positivity of Fraction #122464

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gh-122450: Fix docs to state denominator positivity of Fraction #122464

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04056ff
Fix manual to state denominator positivity of Fraction
privet-kitty Jul 30, 2024
e5a4608
Update Doc/library/fractions.rst
privet-kitty Jul 31, 2024
05c764d
Add docstrings to numerator and denominator of Fraction
privet-kitty Jul 31, 2024
ad66afb
Correct a word
privet-kitty Jul 31, 2024
416b9cd
Update Lib/fractions.py
privet-kitty Jul 31, 2024
7cb1905
Update Lib/fractions.py
privet-kitty Jul 31, 2024
ddec59c
Update Lib/fractions.py
privet-kitty Aug 1, 2024
ed48fb7
Update Doc/library/fractions.rst
privet-kitty Aug 1, 2024
c575b47
Add docstrings to numerator and denominator of Rational
privet-kitty Aug 1, 2024
a531cb6
Update Lib/fractions.py
privet-kitty Aug 2, 2024
1f2519a
Update Lib/fractions.py
privet-kitty Aug 2, 2024
2e07bfc
Merge branch 'main' into feature/denominator-positivity
AA-Turner Jul 19, 2025
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5 changes: 2 additions & 3 deletions Doc/library/fractions.rst
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Expand Up @@ -121,12 +121,11 @@ another rational number, or from a string.

.. attribute:: numerator

Numerator of the Fraction in lowest term.
Numerator of the Fraction in lowest terms.
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Suggested change
Numerator of the Fraction in lowest terms.
Numerator of the Fraction, expressed in its lowest terms.

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In fact, we say that "The Fraction class inherits from the abstract base class numbers.Rational, and implements all of the methods and operations from that class."

So, we could move these numerator/denominator descriptions to the Rational class.

CC @AA-Turner

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That would be worse; it requires people to look in two places to find out what happens with Fraction. Happy to improve in both places, but we shouldn't remove from here.

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This pr continued in #136800. I hope, I'll address review quickly;-)

but we shouldn't remove from here.

I'm not sure if it worth verbosity. I don't see e.g. where described real/imag properties for builtin types, except for the numbers module.

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@skirpichev should this PR (#122464) be closed?

A

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I think so. I tried to attribute this work in a follow-up pr.


.. attribute:: denominator

Denominator of the Fraction in lowest term.

Denominator of the Fraction in lowest terms and positive.

.. method:: as_integer_ratio()

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2 changes: 2 additions & 0 deletions Lib/fractions.py
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Expand Up @@ -413,10 +413,12 @@ def limit_denominator(self, max_denominator=1000000):

@property
def numerator(a):
"""Numerator in lowest terms."""
return a._numerator

@property
def denominator(a):
"""Denominator in lowest terms and positive."""
return a._denominator

def __repr__(self):
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