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ChangeLog

1.19 (2024-11-29)

  • Support for Python 2.7 as well as 3.7 and earlier has been removed.
  • Generally use .as_integer_ratio() in the constructor if available. python/cpython#120271
  • Add a classmethod .from_number() that requires a number argument, not a string. python/cpython#121800
  • Mixed calculations with other Rational classes could return the wrong type. python/cpython#119189
  • In mixed calculations with complex, the Fraction is now converted to float instead of complex to avoid certain corner cases in complex calculation. python/cpython#119839
  • Using complex numbers in division shows better tracebacks. python/cpython#102842
  • Subclass instantiations and calculations could fail in some cases.

1.18 (2024-04-03)

  • New binary wheels were added built with gcc 12 (manylinux_2_28).
  • x86_64 wheels now require SSE4.2.
  • Built using Cython 3.0.10.

1.17 (2024-03-24)

  • Math operations were sped up by inlined binary GCD calculation.

1.16 (2024-01-10)

  • Formatting support was improved, following CPython 3.13a3 as of python/cpython#111320
  • Add support for Python 3.13 by using Cython 3.0.8 and calling math.gcd().

1.15 (2023-08-27)

  • Add support for Python 3.12 by using Cython 3.0.2.

1.14 (2023-03-19)

1.13 (2022-01-11)

  • Parsing very long numbers from a fraction string was very slow, even slower than fractions.Fraction. The parser is now faster in all cases (and still much faster for shorter numbers).
  • Fraction did not implement __int__. https://bugs.python.org/issue44547

1.12 (2022-01-07)

1.11 (2019-12-19)

  • Fix OverflowError when parsing string values with long decimal parts.

1.10 (2019-08-23)

  • hash(fraction) is substantially faster in Py3.8+, following an optimisation in CPython 3.9 (https://bugs.python.org/issue37863).
  • New method fraction.as_integer_ratio().

1.9 (2018-12-26)

  • Substantially faster normalisation (and therefore instantiation) in Py3.5+.
  • // (floordiv) now follows the expected rounding behaviour when used with floats (by converting to float first), and is much faster for integer operations.
  • Fix return type of divmod(), where the first item should be an integer.
  • Further speed up mod and divmod operations.

1.8 (2018-12-26)

  • Faster mod and divmod calculation.

1.7 (2018-10-16)

  • Faster normalisation and fraction string parsing.
  • Add support for Python 3.7.
  • Built using Cython 0.29.

1.6 (2018-03-23)

  • Speed up Fraction creation from a string value by 3-5x.
  • Built using Cython 0.28.1.

1.5 (2017-10-22)

  • Result of power operator (**) was not normalised for negative values.
  • Built using Cython 0.27.2.

1.4 (2017-09-16)

  • Rebuilt using Cython 0.26.1 to improve support of Python 3.7.

1.3 (2016-07-24)

  • repair the faster instantiation from Decimal values in Python 3.6
  • avoid potential glitch for certain large numbers in normalisation under Python 2.x

1.2 (2016-04-08)

  • change hash function in Python 2.x to match that of fractions.Fraction

1.1 (2016-03-29)

  • faster instantiation from float values
  • faster instantiation from Decimal values in Python 3.6

1.0 (2015-09-10)

  • Fraction.imag property could return non-zero
  • parsing strings with long fraction parts could use an incorrect scale

0.7 (2014-10-09)

  • faster instantiation from float and string values
  • fix test in Python 2.x

0.6 (2014-10-09)

  • faster normalisation (and thus instantiation)

0.5 (2014-10-06)

  • faster math operations

0.4 (2014-10-06)

  • enable legacy division support in Python 2.x

0.3 (2014-10-05)

  • minor behavioural fixes in corner cases under Python 2.x (now passes all test in Py2.7 as well)

0.2 (2014-10-03)

  • cache hash value of Fractions

0.1 (2014-09-24)

  • initial public release