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| author | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-01-05 08:47:13 (GMT) |
|---|---|---|
| committer | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-01-05 08:47:13 (GMT) |
| commit | 9871d8fe22566acf68bf336d04d3a1dbd51f3269 (patch) | |
| tree | 89540b4ff5f893e36c916534be2f07b5a7166fc1 /Doc/reference | |
| parent | f7476c4d463b5770b98d980bcd9bff3db981445d (diff) | |
| download | cpython-9871d8fe22566acf68bf336d04d3a1dbd51f3269.zip cpython-9871d8fe22566acf68bf336d04d3a1dbd51f3269.tar.gz cpython-9871d8fe22566acf68bf336d04d3a1dbd51f3269.tar.bz2 | |
Continue rolling back pep-3141 changes that changed behavior from 2.5. This
round included:
* Revert round to its 2.6 behavior (half away from 0).
* Because round, floor, and ceil always return float again, it's no
longer necessary to have them delegate to __xxx___, so I've ripped
that out of their implementations and the Real ABC. This also helps
in implementing types that work in both 2.6 and 3.0: you return int
from the __xxx__ methods, and let it get enabled by the version
upgrade.
* Make pow(-1, .5) raise a ValueError again.
Diffstat (limited to 'Doc/reference')
| -rw-r--r-- | Doc/reference/expressions.rst | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst index 9c416f8..ea2bb1a 100644 --- a/Doc/reference/expressions.rst +++ b/Doc/reference/expressions.rst @@ -801,8 +801,7 @@ were of integer types and the second argument was negative, an exception was raised). Raising ``0.0`` to a negative power results in a :exc:`ZeroDivisionError`. -Raising a negative number to a fractional power results in a :class:`complex` -number. (Since Python 2.6. In earlier versions it raised a :exc:`ValueError`.) +Raising a negative number to a fractional power results in a :exc:`ValueError`. .. _unary: |