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v0.20.3.txt
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.. _whatsnew_0203:
v0.20.3 (June ??, 2017)
-----------------------
This is a minor bug-fix release in the 0.20.x series and includes some small regression fixes,
bug fixes and performance improvements.
We recommend that all users upgrade to this version.
.. contents:: What's new in v0.20.3
:local:
:backlinks: none
.. _whatsnew_0203.enhancements:
Enhancements
~~~~~~~~~~~~
.. _whatsnew_0203.performance:
Performance Improvements
~~~~~~~~~~~~~~~~~~~~~~~~
.. _whatsnew_0203.bug_fixes:
Bug Fixes
~~~~~~~~~
- Fixed issue with dataframe scatter plot for categorical data that reports incorrect column key not found when categorical data is used for plotting (:issue:`16199`)
- Fixed issue with :meth:`DataFrame.style` where element id's were not unique (:issue:`16780`)
- Fixed a pytest marker failing downstream packages' tests suites (:issue:`16680`)
- Fixed compat with loading a ``DataFrame`` with a ``PeriodIndex``, from a ``format='fixed'`` HDFStore, in Python 3, that was written in Python 2 (:issue:`16781`)
- Fixed a bug in failing to compute rolling computations of a column-MultiIndexed ``DataFrame`` (:issue:`16789`, :issue:`16825`)
- Bug in a DataFrame/Series with a ``TimedeltaIndex`` when slice indexing (:issue:`16637`)
Conversion
^^^^^^^^^^
- Bug in pickle compat prior to the v0.20.x series, when ``UTC`` is a timezone in a Series/DataFrame/Index (:issue:`16608`)
- Bug in ``Series`` construction when passing a ``Series`` with ``dtype='category'`` (:issue:`16524`).
- Bug in ``DataFrame.astype()`` when passing a ``Series`` as the ``dtype`` kwarg. (:issue:`16717`).
Indexing
^^^^^^^^
- Bug in ``Float64Index`` causing an empty array instead of ``None`` to be returned from ``.get(np.nan)`` on a Series whose index did not contain any ``NaN`` s (:issue:`8569`)
I/O
^^^
- Bug in :func:`read_csv` in which files weren't opened as binary files by the C engine on Windows, causing EOF characters mid-field, which would fail (:issue:`16039`, :issue:`16559`, :issue:`16675`)
- Bug in :func:`read_hdf` in which reading a ``Series`` saved to an HDF file in 'fixed' format fails when an explicit ``mode='r'`` argument is supplied (:issue:`16583`)
- Bug in :func:`DataFrame.to_latex` where ``bold_rows`` was wrongly specified to be ``True`` by default, whereas in reality row labels remained non-bold whatever parameter provided. (:issue:`16707`)
Plotting
^^^^^^^^
- Fix regression in series plotting that prevented RGB and RGBA tuples from being used as color arguments (:issue:`16233`)
Groupby/Resample/Rolling
^^^^^^^^^^^^^^^^^^^^^^^^
Sparse
^^^^^^
Reshaping
^^^^^^^^^
- ``PeriodIndex`` / ``TimedeltaIndex.join`` was missing the ``sort=`` kwarg (:issue:`16541`)
- Bug in joining on a ``MultiIndex`` with a ``category`` dtype for a level (:issue:`16627`).
- Bug in :func:`merge` when merging/joining with multiple categorical columns (:issue:`16767`)
Numeric
^^^^^^^
Categorical
^^^^^^^^^^^
Other
^^^^^