Rooba
/
cpython
mirror of https://github.com/python/cpython.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Clarify whatsnew entry for short float repr: roundtripping is not a new feature in 2.7.

This commit is contained in:
Mark Dickinson 2010-08-15 09:43:29 +00:00
parent e039ffe41d
commit 8858d2cb84
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Doc/whatsnew/2.7.rst
View File

@ -143,10 +143,12 @@ A partial list of 3.1 features that were backported to 2.7:
* The :class:`memoryview` object.
* A small subset of the :mod:`importlib` module,
`described below <#importlib-section>`__.
* Float-to-string and string-to-float conversions now round their
results more correctly, and :func:`repr` of a floating-point
number *x* returns a result that's guaranteed to round back to the
same number when converted back to a float.
* The :func:`repr` of a float ``x`` is shorter in many cases: it's now
based on the shortest decimal string that's guaranteed to round back
to ``x``. As in previous versions of Python, it's guaranteed that
``float(repr(x))`` recovers ``x``.
* Float-to-string and string-to-float conversions are correctly rounded.
The :func:`round` function is also now correctly rounded.
* The :ctype:`PyCapsule` type, used to provide a C API for extension modules.
* The :cfunc:`PyLong_AsLongAndOverflow` C API function.