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| author | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-01-15 07:46:24 (GMT) |
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| committer | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-01-15 07:46:24 (GMT) |
| commit | d7b00334f3cbf7a802e875238b9f2bd95e190436 (patch) | |
| tree | 0324043740339278109491f3c7afef3be6b1a425 /Python/Python-ast.c | |
| parent | ca9c6e433c6637352eecbe3432786a1ae9bec1de (diff) | |
| download | cpython-d7b00334f3cbf7a802e875238b9f2bd95e190436.zip cpython-d7b00334f3cbf7a802e875238b9f2bd95e190436.tar.gz cpython-d7b00334f3cbf7a802e875238b9f2bd95e190436.tar.bz2 | |
Add rational.Rational as an implementation of numbers.Rational with infinite
precision. This has been discussed at http://bugs.python.org/issue1682. It's
useful primarily for teaching, but it also demonstrates how to implement a
member of the numeric tower, including fallbacks for mixed-mode arithmetic.
I expect to write a couple more patches in this area:
* Rational.from_decimal()
* Rational.trim/approximate() (maybe with different names)
* Maybe remove the parentheses from Rational.__str__()
* Maybe rename one of the Rational classes
* Maybe make Rational('3/2') work.
Diffstat (limited to 'Python/Python-ast.c')
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