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v0.16.2.txt
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.. _whatsnew_0162:
v0.16.2 (June 12, 2015)
-----------------------
This is a minor bug-fix release from 0.16.1 and includes a a large number of
bug fixes along several new features, enhancements, and performance improvements.
We recommend that all users upgrade to this version.
Highlights include:
- Documentation on how to use ``numba`` with *pandas*, see :ref:`here <enhancingperf.numba>`
Check the :ref:`API Changes <whatsnew_0162.api>` before updating.
.. contents:: What's new in v0.16.2
:local:
:backlinks: none
.. _whatsnew_0162.enhancements:
New features
~~~~~~~~~~~~
.. _whatsnew_0162.enhancements.other:
Other enhancements
^^^^^^^^^^^^^^^^^^
.. _whatsnew_0162.api:
Backwards incompatible API changes
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. _whatsnew_0162.api_breaking:
.. _whatsnew_0162.api_breaking.other:
Other API Changes
^^^^^^^^^^^^^^^^^
- ``Holiday`` now raises ``NotImplementedError`` if both ``offset`` and ``observance`` are used in constructor. (:issue:`102171`)
.. _whatsnew_0162.performance:
Performance Improvements
~~~~~~~~~~~~~~~~~~~~~~~~
- Improved ``Series.resample`` performance with dtype=datetime64[ns] (:issue:`7754`)
- Modest improvement in datetime writing speed in to_csv (:issue:`10271`)
.. _whatsnew_0162.bug_fixes:
Bug Fixes
~~~~~~~~~
- Bug where read_hdf store.select modifies the passed columns list when
multi-indexed (:issue:`7212`)
- Bug in ``Categorical`` repr with ``display.width`` of ``None`` in Python 3 (:issue:`10087`)
- Bug in ``mean()`` where integer dtypes can overflow (:issue:`10172`)
- Bug where Panel.from_dict does not set dtype when specified (:issue:`10058`)
- Bug in ``Index.union`` raises ``AttributeError`` when passing array-likes. (:issue:`10149`)
- Bug in ``Timestamp``'s' ``microsecond``, ``quarter``, ``dayofyear``, ``week`` and ``daysinmonth`` properties return ``np.int`` type, not built-in ``int``. (:issue:`10050`)
- Bug in ``NaT`` raises ``AttributeError`` when accessing to ``daysinmonth``, ``dayofweek`` properties. (:issue:`10096`)
- Bug in getting timezone data with ``dateutil`` on various platforms ( :issue:`9059`, :issue:`8639`, :issue:`9663`, :issue:`10121`)
- Bug in display datetimes with mixed frequencies uniformly; display 'ms' datetimes to the proper precision. (:issue:`10170`)
- Bung in ``Series`` arithmetic methods may incorrectly hold names (:issue:`10068`)
- Bug in ``DatetimeIndex`` and ``TimedeltaIndex`` names are lost after timedelta arithmetics ( :issue:`9926`)
- Bug in `Series.plot(label="LABEL")` not correctly setting the label (:issue:`10119`)
- Bug in `plot` not defaulting to matplotlib `axes.grid` setting (:issue:`9792`)
- Bug in ``Series.align`` resets ``name`` when ``fill_value`` is specified (:issue:`10067`)
- Bug in ``SparseSeries.abs`` resets ``name`` (:issue:`10241`)
- Bug in GroupBy.get_group raises ValueError when group key contains NaT (:issue:`6992`)
- Bug in ``SparseSeries`` constructor ignores input data name (:issue:`10258`)
- Bug where infer_freq infers timerule (WOM-5XXX) unsupported by to_offset (:issue:`9425`)
- Bug to handle masking empty ``DataFrame``(:issue:`10126`)