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gh-101773: Optimize creation of Fractions in private methods #101780

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Merged
mdickinson merged 13 commits into from
Feb 27, 2023
+50 −34
Merged

gh-101773: Optimize creation of Fractions in private methods #101780

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9cc62f7
gh-101773: Optimize creation of Fraction's in private methods
skirpichev Feb 10, 2023
836d3a6
Merge branch 'main' into opt-fractions-new
skirpichev Feb 10, 2023
3625d34
Adjust signature of _from_pair() and add docstring
skirpichev Feb 11, 2023
9e66b5a
Use new helper in from_float/Decimal
skirpichev Feb 11, 2023
4324391
Restore back _normalize kwarg for the Fraction.__new__()
skirpichev Feb 11, 2023
b0dca38
Amend 3625d34155
skirpichev Feb 11, 2023
3a8506d
Nitpick on docstring (int's -> ints)
skirpichev Feb 27, 2023
13262af
Revert "Restore back _normalize kwarg for the Fraction.__new__()"
skirpichev Feb 27, 2023
4e8977a
Rename: _from_pair -> _from_coprime_ints
skirpichev Feb 27, 2023
57ac373
Merge branch 'main' into opt-fractions-new
skirpichev Feb 27, 2023
4b4a386
Update Misc/NEWS.d/next/Library/2023-02-10-11-59-13.gh-issue-101773.J…
skirpichev Feb 27, 2023
580b1be
+1
skirpichev Feb 27, 2023
53d5e94
Tweak docstring wording
mdickinson Feb 27, 2023
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Adjust signature of _from_pair() and add docstring
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@skirpichev
skirpichev committed Feb 11, 2023
commit 3625d34155b4d6d8665c665a85ccd701af47d336
11 changes: 8 additions & 3 deletions Lib/fractions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -315,10 +315,15 @@ def from_decimal(cls, dec):
return cls(*dec.as_integer_ratio())

@classmethod
def _from_pair(cls, num, den):
def _from_pair(cls, numerator, denominator, /):
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"""Convert a pair of int's to a rational number.

The ratio of integers should be in lowest terms and
the denominator is positive.
"""
obj = super(Fraction, cls).__new__(cls)
obj._numerator = num
obj._denominator = den
obj._numerator = numerator
obj._denominator = denominator
return obj

def is_integer(self):
Expand Down