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Diffstat (limited to 'Doc/whatsnew/3.2.rst')
| -rw-r--r-- | Doc/whatsnew/3.2.rst | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Doc/whatsnew/3.2.rst b/Doc/whatsnew/3.2.rst index 6e1daf9..3c913a1 100644 --- a/Doc/whatsnew/3.2.rst +++ b/Doc/whatsnew/3.2.rst @@ -405,7 +405,8 @@ New, Improved, and Deprecated Modules >>> get_phone_number.cache_clear() - (Contributed by Raymond Hettinger.) + (Contributed by Raymond Hettinger and incorporating design ideas from + Jim Baker, Miki Tebeka, and Nick Coglan.) * The :func:`functools.wraps` decorator now adds a :attr:`__wrapped__` attribute pointing to the original callable function. This allows wrapped functions to @@ -416,6 +417,22 @@ New, Improved, and Deprecated Modules (By Nick Coghlan and Terrence Cole; :issue:`9567`, :issue:`3445`, and :issue:`8814`.) +* The :mod:`itertools` module has a new function, :func:`~itertools.accumulate` + modeled on APL's *scan* and on Numpy's *accumulate* function: + + >>> list(accumulate(8, 2, 50)) + [8, 10, 60] + + >>> prob_dist = [0.1, 0.4, 0.2, 0.3] + >>> list(accumulate(prob_dist)) # cumulative probability distribution + [0.1, 0.5, 0.7, 1.0] + + For an example using :func:`~itertools.accumulate`, see the :ref:`examples for + the random module <random-examples>`. + + (Contributed by Raymond Hettinger and incorporating design suggestions + from Mark Dickinson.) + * The :mod:`nntplib` module gets a revamped implementation with better bytes / unicode semantics as well as more practical APIs. These improvements break compatibility with the nntplib version in Python 3.1, which was |