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| author | Mark Dickinson <dickinsm@gmail.com> | 2008-02-10 21:29:51 (GMT) |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2008-02-10 21:29:51 (GMT) |
| commit | d058cd2cc8e2a3f61609b92a8fc821ea8ec524ca (patch) | |
| tree | 07e5d6aa70f60c886ca138de24fdca84686a0b54 /Doc/whatsnew | |
| parent | da614dcc4f56bfb136c53b04d60889870d969926 (diff) | |
| download | cpython-d058cd2cc8e2a3f61609b92a8fc821ea8ec524ca.zip cpython-d058cd2cc8e2a3f61609b92a8fc821ea8ec524ca.tar.gz cpython-d058cd2cc8e2a3f61609b92a8fc821ea8ec524ca.tar.bz2 | |
Rename rational.Rational to fractions.Fraction, to avoid name clash
with numbers.Rational. See issue #1682 for related discussion.
Diffstat (limited to 'Doc/whatsnew')
| -rw-r--r-- | Doc/whatsnew/2.6.rst | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/Doc/whatsnew/2.6.rst b/Doc/whatsnew/2.6.rst index cbc8b8f..83cca99 100644 --- a/Doc/whatsnew/2.6.rst +++ b/Doc/whatsnew/2.6.rst @@ -578,8 +578,8 @@ and comparisons. :class:`Rational` numbers derive from :class:`Real`, have :attr:`numerator` and :attr:`denominator` properties, and can be -converted to floats. Python 2.6 adds a simple rational-number class -in the :mod:`rational` module. +converted to floats. Python 2.6 adds a simple rational-number class, +:class:`Fraction`, in the :mod:`fractions` module. :class:`Integral` numbers derive from :class:`Rational`, and can be shifted left and right with ``<<`` and ``>>``, @@ -598,29 +598,29 @@ one, :func:`trunc`, that's been backported to Python 2.6. -The Rational Module +The Fraction Module -------------------------------------------------- To fill out the hierarchy of numeric types, a rational-number class -has been added as the :mod:`rational` module. Rational numbers are +has been added as the :mod:`fractions` module. Rational numbers are represented as a fraction; rational numbers can exactly represent numbers such as two-thirds that floating-point numbers can only approximate. -The :class:`Rational` constructor takes two :class:`Integral` values +The :class:`Fraction` constructor takes two :class:`Integral` values that will be the numerator and denominator of the resulting fraction. :: - >>> from rational import Rational - >>> a = Rational(2, 3) - >>> b = Rational(2, 5) + >>> from fractions import Fraction + >>> a = Fraction(2, 3) + >>> b = Fraction(2, 5) >>> float(a), float(b) (0.66666666666666663, 0.40000000000000002) >>> a+b - rational.Rational(16,15) + Fraction(16,15) >>> a/b - rational.Rational(5,3) + Fraction(5,3) -The :mod:`rational` module is based upon an implementation by Sjoerd +The :mod:`fractions` module is based upon an implementation by Sjoerd Mullender that was in Python's :file:`Demo/classes/` directory for a long time. This implementation was significantly updated by Jeffrey Yaskin. |