- This release is intended as a small patch release to be compatible with the new:
2021.5.0 ``dask.distributed`` release. It also includes a new
``drop_duplicates`` method, some documentation improvements, the beginnings of
- our internal Index refactoring, and some bug fixes.:
- Thank you to all 16 contributors!:
- Anderson Banihirwe, Andrew, Benoit Bovy, Brewster Malevich, Giacomo Caria,:
- Illviljan, James Bourbeau, Keewis, Maximilian Roos, Ravin Kumar, Stephan Hoyer,:
- Thomas Nicholas, Tom Nicholas, Zachary Moon.:
- New Features:
- Implement :py:meth:`DataArray.drop_duplicates`
to remove duplicate dimension values (:pull:`5239`).
By `Andrew Huang <https://github.com/ahuang11>`_.
- Allow passing ``combine_attrs`` strategy names to the ``keep_attrs`` parameter of
:py:func:`apply_ufunc` (:pull:`5041`)
By `Justus Magin <https://github.com/keewis>`_.
- :py:meth:`Dataset.interp` now allows interpolation with non-numerical datatypes,
such as booleans, instead of dropping them. (:issue:`4761` :pull:`5008`).
By `Jimmy Westling <https://github.com/illviljan>`_.
- Raise more informative error when decoding time variables with invalid reference dates.
(:issue:`5199`, :pull:`5288`). By `Giacomo Caria <https://github.com/gcaria>`_.
- Bug fixes:
- Opening netCDF files from a path that doesn't end in ``.nc`` without supplying
an explicit ``engine`` works again (:issue:`5295`), fixing a bug introduced in
0.18.0.
By `Stephan Hoyer <https://github.com/shoyer>`_
- Documentation:
- Clean up and enhance docstrings for the :py:class:`DataArray.plot` and ``Dataset.plot.*``
families of methods (:pull:`5285`).
By `Zach Moon <https://github.com/zmoon>`_.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=50
- This release brings a few important performance improvements, a wide range of:
- usability upgrades, lots of bug fixes, and some new features. These include:
- a plugin API to add backend engines, a new theme for the documentation,:
- curve fitting methods, and several new plotting functions.:
- Many thanks to the 38 contributors to this release: Aaron Spring, Alessandro Amici,:
- Alex Marandon, Alistair Miles, Ana Paula Krelling, Anderson Banihirwe, Aureliana Barghini,:
- Baudouin Raoult, Benoit Bovy, Blair Bonnett, David Trémouilles, Deepak Cherian,:
- Gabriel Medeiros Abrahão, Giacomo Caria, Hauke Schulz, Illviljan, Mathias Hauser, Matthias Bussonnier,:
- Mattia Almansi, Maximilian Roos, Ray Bell, Richard Kleijn, Ryan Abernathey, Sam Levang, Spencer Clark,:
- Spencer Jones, Tammas Loughran, Tobias Kölling, Todd, Tom Nicholas, Tom White, Victor Negîrneac,:
- Xianxiang Li, Zeb Nicholls, crusaderky, dschwoerer, johnomotani, keewis:
- New Features:
- apply ``combine_attrs`` on data variables and coordinate variables when concatenating
and merging datasets and dataarrays (:pull:`4902`).
By `Justus Magin <https://github.com/keewis>`_.
- Add :py:meth:`Dataset.to_pandas` (:pull:`5247`)
By `Giacomo Caria <https://github.com/gcaria>`_.
- Add :py:meth:`DataArray.plot.surface` which wraps matplotlib's `plot_surface` to make
surface plots (:issue:`2235` :issue:`5084` :pull:`5101`).
By `John Omotani <https://github.com/johnomotani>`_.
- Allow passing multiple arrays to :py:meth:`Dataset.__setitem__` (:pull:`5216`).
By `Giacomo Caria <https://github.com/gcaria>`_.
- Add 'cumulative' option to :py:meth:`Dataset.integrate` and
:py:meth:`DataArray.integrate` so that result is a cumulative integral, like
:py:func:`scipy.integrate.cumulative_trapezoidal` (:pull:`5153`).
By `John Omotani <https://github.com/johnomotani>`_.
- Add ``safe_chunks`` option to :py:meth:`Dataset.to_zarr` which allows overriding
checks made to ensure Dask and Zarr chunk compatibility (:issue:`5056`).
By `Ryan Abernathey <https://github.com/rabernat>`_
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=48
- update to version 0.17.0:
- This release brings a few important performance improvements, a wide range of:
- usability upgrades, lots of bug fixes, and some new features. These include:
- better ``cftime`` support, a new quiver plot, better ``unstack`` performance,:
- more efficient memory use in rolling operations, and some python packaging:
- improvements. We also have a few documentation improvements (and more planned!).:
- Many thanks to the 36 contributors to this release: Alessandro Amici, Anderson:
- Banihirwe, Aureliana Barghini, Ayrton Bourn, Benjamin Bean, Blair Bonnett, Chun:
- Ho Chow, DWesl, Daniel Mesejo-León, Deepak Cherian, Eric Keenan, Illviljan, Jens:
- Hedegaard Nielsen, Jody Klymak, Julien Seguinot, Julius Busecke, Kai Mühlbauer,:
- Leif Denby, Martin Durant, Mathias Hauser, Maximilian Roos, Michael Mann, Ray:
- Bell, RichardScottOZ, Spencer Clark, Tim Gates, Tom Nicholas, Yunus Sevinchan,:
- alexamici, aurghs, crusaderky, dcherian, ghislainp, keewis, rhkleijn:
- Breaking changes:
- xarray no longer supports python 3.6
The minimum version policy was changed to also apply to projects with irregular
releases. As a result, the minimum versions of some dependencies have changed:
============ ====== ====
Package Old New
============ ====== ====
Python 3.6 3.7
setuptools 38.4 40.4
numpy 1.15 1.17
pandas 0.25 1.0
dask 2.9 2.11
distributed 2.9 2.11
bottleneck 1.2 1.3
h5netcdf 0.7 0.8
iris 2.2 2.4
netcdf4 1.4 1.5
pseudonetcdf 3.0 3.1
rasterio 1.0 1.1
scipy 1.3 1.4
seaborn 0.9 0.10
zarr 2.3 2.4
============ ====== ====
(:issue:`4688`, :pull:`4720`, :pull:`4907`, :pull:`4942`)
- As a result of :pull:`4684` the default units encoding for
datetime-like values (``np.datetime64[ns]`` or ``cftime.datetime``) will now
always be set such that ``int64`` values can be used. In the past, no units
finer than "seconds" were chosen, which would sometimes mean that ``float64``
values were required, which would lead to inaccurate I/O round-trips.
- Variables referred to in attributes like ``bounds`` and ``grid_mapping``
can be set as coordinate variables. These attributes are moved to
:py:attr:`DataArray.encoding` from :py:attr:`DataArray.attrs`. This behaviour
is controlled by the ``decode_coords`` kwarg to :py:func:`open_dataset` and
:py:func:`open_mfdataset`. The full list of decoded attributes is in
:ref:`weather-climate` (:pull:`2844`, :issue:`3689`)
- As a result of :pull:`4911` the output from calling :py:meth:`DataArray.sum`
or :py:meth:`DataArray.prod` on an integer array with ``skipna=True`` and a
non-None value for ``min_count`` will now be a float array rather than an
integer array.
- Deprecations:
- ``dim`` argument to :py:meth:`DataArray.integrate` is being deprecated in
favour of a ``coord`` argument, for consistency with :py:meth:`Dataset.integrate`.
For now using ``dim`` issues a ``FutureWarning``. It will be removed in
version 0.19.0 (:pull:`3993`).
By `Tom Nicholas <https://github.com/TomNicholas>`_.
- Deprecated ``autoclose`` kwargs from :py:func:`open_dataset` are removed (:pull:`4725`).
By `Aureliana Barghini <https://github.com/aurghs>`_.
- the return value of :py:meth:`Dataset.update` is being deprecated to make it work more
like :py:meth:`dict.update`. It will be removed in version 0.19.0 (:pull:`4932`).
By `Justus Magin <https://github.com/keewis>`_.
- New Features:
- :py:meth:`~xarray.cftime_range` and :py:meth:`DataArray.resample` now support
millisecond (``"L"`` or ``"ms"``) and microsecond (``"U"`` or ``"us"``) frequencies
for ``cftime.datetime`` coordinates (:issue:`4097`, :pull:`4758`).
By `Spencer Clark <https://github.com/spencerkclark>`_.
- Significantly higher ``unstack`` performance on numpy-backed arrays which
contain missing values; 8x faster than previous versions in our benchmark, and
now 2x faster than pandas (:pull:`4746`).
By `Maximilian Roos <https://github.com/max-sixty>`_.
- Add :py:meth:`Dataset.plot.quiver` for quiver plots with :py:class:`Dataset` variables.
By `Deepak Cherian <https://github.com/dcherian>`_.
- Add ``"drop_conflicts"`` to the strategies supported by the ``combine_attrs`` kwarg
(:issue:`4749`, :pull:`4827`).
By `Justus Magin <https://github.com/keewis>`_.
- Allow installing from git archives (:pull:`4897`).
By `Justus Magin <https://github.com/keewis>`_.
- :py:class:`DataArrayCoarsen` and :py:class:`DatasetCoarsen` now implement a
``reduce`` method, enabling coarsening operations with custom reduction
functions (:issue:`3741`, :pull:`4939`). By `Spencer Clark
<https://github.com/spencerkclark>`_.
- Most rolling operations use significantly less memory. (:issue:`4325`).
By `Deepak Cherian <https://github.com/dcherian>`_.
- Add :py:meth:`Dataset.drop_isel` and :py:meth:`DataArray.drop_isel`
(:issue:`4658`, :pull:`4819`).
By `Daniel Mesejo <https://github.com/mesejo>`_.
- Xarray now leverages updates as of cftime version 1.4.1, which enable exact I/O
roundtripping of ``cftime.datetime`` objects (:pull:`4758`).
By `Spencer Clark <https://github.com/spencerkclark>`_.
- :py:func:`open_dataset` and :py:func:`open_mfdataset` now accept ``fsspec`` URLs
(including globs for the latter) for ``engine="zarr"``, and so allow reading from
many remote and other file systems (:pull:`4461`)
By `Martin Durant <https://github.com/martindurant>`_
- :py:meth:`DataArray.swap_dims` & :py:meth:`Dataset.swap_dims` now accept dims
in the form of kwargs as well as a dict, like most similar methods.
By `Maximilian Roos <https://github.com/max-sixty>`_.
- Bug fixes:
- Use specific type checks in
:py:func:`~xarray.core.variable.as_compatible_data` instead of blanket
access to ``values`` attribute (:issue:`2097`)
By `Yunus Sevinchan <https://github.com/blsqr>`_.
- :py:meth:`DataArray.resample` and :py:meth:`Dataset.resample` do not trigger
computations anymore if :py:meth:`Dataset.weighted` or
:py:meth:`DataArray.weighted` are applied (:issue:`4625`, :pull:`4668`). By
`Julius Busecke <https://github.com/jbusecke>`_.
- :py:func:`merge` with ``combine_attrs='override'`` makes a copy of the attrs
(:issue:`4627`).
- By default, when possible, xarray will now always use values of
type ``int64`` when encoding and decoding ``numpy.datetime64[ns]`` datetimes. This
ensures that maximum precision and accuracy are maintained in the round-tripping
process (:issue:`4045`, :pull:`4684`). It also enables encoding and decoding standard
calendar dates with time units of nanoseconds (:pull:`4400`).
By `Spencer Clark <https://github.com/spencerkclark>`_ and `Mark Harfouche
<http://github.com/hmaarrfk>`_.
- :py:meth:`DataArray.astype`, :py:meth:`Dataset.astype` and :py:meth:`Variable.astype` support
the ``order`` and ``subok`` parameters again. This fixes a regression introduced in version 0.16.1
(:issue:`4644`, :pull:`4683`).
By `Richard Kleijn <https://github.com/rhkleijn>`_ .
- Remove dictionary unpacking when using ``.loc`` to avoid collision with ``.sel`` parameters (:pull:`4695`).
By `Anderson Banihirwe <https://github.com/andersy005>`_.
- Fix the legend created by :py:meth:`Dataset.plot.scatter` (:issue:`4641`, :pull:`4723`).
By `Justus Magin <https://github.com/keewis>`_.
- Fix a crash in orthogonal indexing on geographic coordinates with ``engine='cfgrib'``
(:issue:`4733` :pull:`4737`).
By `Alessandro Amici <https://github.com/alexamici>`_.
- Coordinates with dtype ``str`` or ``bytes`` now retain their dtype on many operations,
e.g. ``reindex``, ``align``, ``concat``, ``assign``, previously they were cast to an object dtype
(:issue:`2658` and :issue:`4543`).
By `Mathias Hauser <https://github.com/mathause>`_.
- Limit number of data rows when printing large datasets. (:issue:`4736`, :pull:`4750`).
By `Jimmy Westling <https://github.com/illviljan>`_.
- Add ``missing_dims`` parameter to transpose (:issue:`4647`, :pull:`4767`).
By `Daniel Mesejo <https://github.com/mesejo>`_.
- Resolve intervals before appending other metadata to labels when plotting (:issue:`4322`, :pull:`4794`).
By `Justus Magin <https://github.com/keewis>`_.
- Fix regression when decoding a variable with a ``scale_factor`` and ``add_offset`` given
as a list of length one (:issue:`4631`) by `Mathias Hauser <https://github.com/mathause>`_.
- Expand user directory paths (e.g. ``~/``) in :py:func:`open_mfdataset` and
:py:meth:`Dataset.to_zarr` (:issue:`4783`, :pull:`4795`).
By `Julien Seguinot <https://github.com/juseg>`_.
- Raise DeprecationWarning when trying to typecast a tuple containing a :py:class:`DataArray`.
User now prompted to first call `.data` on it (:issue:`4483`).
By `Chun Ho Chow <https://github.com/chunhochow>`_.
- Ensure that :py:meth:`Dataset.interp` raises ``ValueError`` when interpolating
outside coordinate range and ``bounds_error=True`` (:issue:`4854`,
:pull:`4855`).
By `Leif Denby <https://github.com/leifdenby>`_.
- Fix time encoding bug associated with using cftime versions greater than
1.4.0 with xarray (:issue:`4870`, :pull:`4871`). By `Spencer Clark <https://github.com/spencerkclark>`_.
- Stop :py:meth:`DataArray.sum` and :py:meth:`DataArray.prod` computing lazy
arrays when called with a ``min_count`` parameter (:issue:`4898`, :pull:`4911`).
By `Blair Bonnett <https://github.com/bcbnz>`_.
- Fix bug preventing the ``min_count`` parameter to :py:meth:`DataArray.sum` and
:py:meth:`DataArray.prod` working correctly when calculating over all axes of
a float64 array (:issue:`4898`, :pull:`4911`). By `Blair Bonnett <https://github.com/bcbnz>`_.
- Fix decoding of vlen strings using h5py versions greater than 3.0.0 with h5netcdf backend (:issue:`4570`, :pull:`4893`).
By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
- Allow converting :py:class:`Dataset` or :py:class:`DataArray` objects with a ``MultiIndex``
and at least one other dimension to a ``pandas`` object (:issue:`3008`, :pull:`4442`).
By `ghislainp <https://github.com/ghislainp>`_.
- Documentation:
- Add information about requirements for accessor classes (:issue:`2788`, :pull:`4657`).
By `Justus Magin <https://github.com/keewis>`_.
- Start a list of external I/O integrating with ``xarray`` (:issue:`683`, :pull:`4566`).
By `Justus Magin <https://github.com/keewis>`_.
- Add concat examples and improve combining documentation (:issue:`4620`, :pull:`4645`).
By `Ray Bell <https://github.com/raybellwaves>`_ and
`Justus Magin <https://github.com/keewis>`_.
- explicitly mention that :py:meth:`Dataset.update` updates inplace (:issue:`2951`, :pull:`4932`).
By `Justus Magin <https://github.com/keewis>`_.
- Added docs on vectorized indexing (:pull:`4711`).
By `Eric Keenan <https://github.com/EricKeenan>`_.
- Internal Changes:
- Speed up of the continuous integration tests on azure.
- Switched to mamba and use matplotlib-base for a faster installation of all dependencies (:pull:`4672`).
- Use ``pytest.mark.skip`` instead of ``pytest.mark.xfail`` for some tests that can currently not
succeed (:pull:`4685`).
- Run the tests in parallel using pytest-xdist (:pull:`4694`).
By `Justus Magin <https://github.com/keewis>`_ and `Mathias Hauser <https://github.com/mathause>`_.
- Use ``pyproject.toml`` instead of the ``setup_requires`` option for
``setuptools`` (:pull:`4897`).
By `Justus Magin <https://github.com/keewis>`_.
- Replace all usages of ``assert x.identical(y)`` with ``assert_identical(x, y)``
for clearer error messages (:pull:`4752`).
By `Maximilian Roos <https://github.com/max-sixty>`_.
- Speed up attribute style access (e.g. ``ds.somevar`` instead of ``ds["somevar"]``) and
tab completion in IPython (:issue:`4741`, :pull:`4742`).
By `Richard Kleijn <https://github.com/rhkleijn>`_.
- Added the ``set_close`` method to ``Dataset`` and ``DataArray`` for backends
to specify how to voluntary release all resources. (:pull:`#4809`)
By `Alessandro Amici <https://github.com/alexamici>`_.
- Update type hints to work with numpy v1.20 (:pull:`4878`).
By `Mathias Hauser <https://github.com/mathause>`_.
- Ensure warnings cannot be turned into exceptions in :py:func:`testing.assert_equal` and
the other ``assert_*`` functions (:pull:`4864`).
By `Mathias Hauser <https://github.com/mathause>`_.
- Performance improvement when constructing DataArrays. Significantly speeds up
repr for Datasets with large number of variables.
By `Deepak Cherian <https://github.com/dcherian>`_.
- remove xarray-pr4884-dask2021.patch, was never applied and is included upstream.
OBS-URL: https://build.opensuse.org/request/show/877405
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-xarray?expand=0&rev=25
- This release brings a few important performance improvements, a wide range of:
- usability upgrades, lots of bug fixes, and some new features. These include:
- better ``cftime`` support, a new quiver plot, better ``unstack`` performance,:
- more efficient memory use in rolling operations, and some python packaging:
- improvements. We also have a few documentation improvements (and more planned!).:
- Many thanks to the 36 contributors to this release: Alessandro Amici, Anderson:
- Banihirwe, Aureliana Barghini, Ayrton Bourn, Benjamin Bean, Blair Bonnett, Chun:
- Ho Chow, DWesl, Daniel Mesejo-León, Deepak Cherian, Eric Keenan, Illviljan, Jens:
- Hedegaard Nielsen, Jody Klymak, Julien Seguinot, Julius Busecke, Kai Mühlbauer,:
- Leif Denby, Martin Durant, Mathias Hauser, Maximilian Roos, Michael Mann, Ray:
- Bell, RichardScottOZ, Spencer Clark, Tim Gates, Tom Nicholas, Yunus Sevinchan,:
- alexamici, aurghs, crusaderky, dcherian, ghislainp, keewis, rhkleijn:
- Breaking changes:
- xarray no longer supports python 3.6
The minimum version policy was changed to also apply to projects with irregular
releases. As a result, the minimum versions of some dependencies have changed:
============ ====== ====
Package Old New
============ ====== ====
Python 3.6 3.7
setuptools 38.4 40.4
numpy 1.15 1.17
pandas 0.25 1.0
dask 2.9 2.11
distributed 2.9 2.11
bottleneck 1.2 1.3
h5netcdf 0.7 0.8
iris 2.2 2.4
netcdf4 1.4 1.5
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=45
- This release brings the ability to write to limited regions of ``zarr`` files, open zarr files with :py:func:`open_dataset` and :py:func:`open_mfdataset`, increased support for propagating ``attrs`` using the ``keep_attrs`` flag, as well as numerous bugfixes and documentation improvements.:
- Deprecations:
- :py:attr:`~core.accessor_dt.DatetimeAccessor.weekofyear` and :py:attr:`~core.accessor_dt.DatetimeAccessor.week`
have been deprecated. Use ``DataArray.dt.isocalendar().week``
instead (:pull:`4534`). By `Mathias Hauser <https://github.com/mathause>`_,
`Maximilian Roos <https://github.com/max-sixty>`_, and `Spencer Clark <https://github.com/spencerkclark>`_.
- :py:attr:`DataArray.rolling` and :py:attr:`Dataset.rolling` no longer support passing ``keep_attrs``
via its constructor. Pass ``keep_attrs`` via the applied function, i.e. use
``ds.rolling(...).mean(keep_attrs=False)`` instead of ``ds.rolling(..., keep_attrs=False).mean()``
Rolling operations now keep their attributes per default (:pull:`4510`).
By `Mathias Hauser <https://github.com/mathause>`_.
- New Features:
- :py:func:`open_dataset` and :py:func:`open_mfdataset`
now works with ``engine="zarr"`` (:issue:`3668`, :pull:`4003`, :pull:`4187`).
By `Miguel Jimenez <https://github.com/Mikejmnez>`_ and `Wei Ji Leong <https://github.com/weiji14>`_.
- Unary & binary operations follow the ``keep_attrs`` flag (:issue:`3490`, :issue:`4065`, :issue:`3433`, :issue:`3595`, :pull:`4195`).
By `Deepak Cherian <https://github.com/dcherian>`_.
- Added :py:meth:`~core.accessor_dt.DatetimeAccessor.isocalendar()` that returns a Dataset
with year, week, and weekday calculated according to the ISO 8601 calendar. Requires
pandas version 1.1.0 or greater (:pull:`4534`). By `Mathias Hauser <https://github.com/mathause>`_,
`Maximilian Roos <https://github.com/max-sixty>`_, and `Spencer Clark <https://github.com/spencerkclark>`_.
- :py:meth:`Dataset.to_zarr` now supports a ``region`` keyword for writing to
limited regions of existing Zarr stores (:pull:`4035`).
See :ref:`io.zarr.appending` for full details.
By `Stephan Hoyer <https://github.com/shoyer>`_.
- Added typehints in :py:func:`align` to reflect that the same type received in ``objects`` arg will be returned (:pull:`4522`).
By `Michal Baumgartner <https://github.com/m1so>`_.
- :py:meth:`Dataset.weighted` and :py:meth:`DataArray.weighted` are now executing value checks lazily if weights are provided as dask arrays (:issue:`4541`, :pull:`4559`).
By `Julius Busecke <https://github.com/jbusecke>`_.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=41
- This patch release fixes an incompatability with a recent pandas change, which:
- was causing an issue indexing with a ``datetime64``. It also includes:
- improvements to ``rolling``, ``to_dataframe``, ``cov`` & ``corr`` methods and:
- bug fixes. Our documentation has a number of improvements, including fixing all :
- doctests and confirming their accuracy on every commit.:
- Many thanks to the 36 contributors who contributed to this release:
- Aaron Spring, Akio Taniguchi, Aleksandar Jelenak, Alexandre Poux,:
- Caleb, Dan Nowacki, Deepak Cherian, Gerardo Rivera, Jacob Tomlinson, James A.:
- Bednar, Joe Hamman, Julia Kent, Kai Mühlbauer, Keisuke Fujii, Mathias Hauser,:
- Maximilian Roos, Nick R. Papior, Pascal Bourgault, Peter Hausamann, Romain:
- Martinez, Russell Manser, Samnan Rahee, Sander, Spencer Clark, Stephan Hoyer,:
- Thomas Zilio, Tobias Kölling, Tom Augspurger, alexamici, crusaderky, darikg,:
- inakleinbottle, jenssss, johnomotani, keewis, and rpgoldman.:
- Breaking changes:
- :py:meth:`DataArray.astype` and :py:meth:`Dataset.astype` now preserve attributes. Keep the
old behavior by passing `keep_attrs=False` (:issue:`2049`, :pull:`4314`).
By `Dan Nowacki <https://github.com/dnowacki-usgs>`_ and `Gabriel Joel Mitchell <https://github.com/gajomi>`_.
- New Features:
- :py:meth:`~xarray.DataArray.rolling` and :py:meth:`~xarray.Dataset.rolling`
now accept more than 1 dimension. (:pull:`4219`)
By `Keisuke Fujii <https://github.com/fujiisoup>`_.
- :py:meth:`~xarray.DataArray.to_dataframe` and :py:meth:`~xarray.Dataset.to_dataframe`
now accept a ``dim_order`` parameter allowing to specify the resulting dataframe's
dimensions order (:issue:`4331`, :pull:`4333`).
By `Thomas Zilio <https://github.com/thomas-z>`_.
- Support multiple outputs in :py:func:`xarray.apply_ufunc` when using
``dask='parallelized'``. (:issue:`1815`, :pull:`4060`).
By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
- ``min_count`` can be supplied to reductions such as ``.sum`` when specifying
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=39
- update to version 0.15.0:
- This release brings many improvements to xarray's documentation: our examples are now binderized notebooks (`click here <https://mybinder.org/v2/gh/pydata/xarray/master?urlpath=lab/tree/doc/examples/weather-data.ipynb>`_):
- and we have new example notebooks from our SciPy 2019 sprint (many thanks to our contributors!).:
- This release also features many API improvements such as a new:
:py:class:`~core.accessor_dt.TimedeltaAccessor` and support for :py:class:`CFTimeIndex` in
:py:meth:`~DataArray.interpolate_na`); as well as many bug fixes.
- Breaking changes:
- Bumped minimum tested versions for dependencies:
- numpy 1.15
- pandas 0.25
- dask 2.2
- distributed 2.2
- scipy 1.3
- Remove ``compat`` and ``encoding`` kwargs from ``DataArray``, which
have been deprecated since 0.12. (:pull:`3650`).
Instead, specify the ``encoding`` kwarg when writing to disk or set
the :py:attr:`DataArray.encoding` attribute directly.
By `Maximilian Roos <https://github.com/max-sixty>`_.
- :py:func:`xarray.dot`, :py:meth:`DataArray.dot`, and the ``@`` operator now
use ``align="inner"`` (except when ``xarray.set_options(arithmetic_join="exact")``;
:issue:`3694`) by `Mathias Hauser <https://github.com/mathause>`_.
- New Features:
- :py:meth:`DataArray.sel` and :py:meth:`Dataset.sel` now support :py:class:`pandas.CategoricalIndex`. (:issue:`3669`)
By `Keisuke Fujii <https://github.com/fujiisoup>`_.
- Support using an existing, opened h5netcdf ``File`` with
:py:class:`~xarray.backends.H5NetCDFStore`. This permits creating an
:py:class:`~xarray.Dataset` from a h5netcdf ``File`` that has been opened
using other means (:issue:`3618`).
By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
- Implement ``median`` and ``nanmedian`` for dask arrays. This works by rechunking
to a single chunk along all reduction axes. (:issue:`2999`).
By `Deepak Cherian <https://github.com/dcherian>`_.
- :py:func:`~xarray.concat` now preserves attributes from the first Variable.
(:issue:`2575`, :issue:`2060`, :issue:`1614`)
By `Deepak Cherian <https://github.com/dcherian>`_.
- :py:meth:`Dataset.quantile`, :py:meth:`DataArray.quantile` and ``GroupBy.quantile``
now work with dask Variables.
By `Deepak Cherian <https://github.com/dcherian>`_.
- Added the ``count`` reduction method to both :py:class:`~core.rolling.DatasetCoarsen`
and :py:class:`~core.rolling.DataArrayCoarsen` objects. (:pull:`3500`)
By `Deepak Cherian <https://github.com/dcherian>`_
- Add ``meta`` kwarg to :py:func:`~xarray.apply_ufunc`;
this is passed on to :py:func:`dask.array.blockwise`. (:pull:`3660`)
By `Deepak Cherian <https://github.com/dcherian>`_.
- Add ``attrs_file`` option in :py:func:`~xarray.open_mfdataset` to choose the
source file for global attributes in a multi-file dataset (:issue:`2382`,
:pull:`3498`). By `Julien Seguinot <https://github.com/juseg>`_.
- :py:meth:`Dataset.swap_dims` and :py:meth:`DataArray.swap_dims`
now allow swapping to dimension names that don't exist yet. (:pull:`3636`)
By `Justus Magin <https://github.com/keewis>`_.
- Extend :py:class:`~core.accessor_dt.DatetimeAccessor` properties
and support ``.dt`` accessor for timedeltas
via :py:class:`~core.accessor_dt.TimedeltaAccessor` (:pull:`3612`)
By `Anderson Banihirwe <https://github.com/andersy005>`_.
- Improvements to interpolating along time axes (:issue:`3641`, :pull:`3631`).
By `David Huard <https://github.com/huard>`_.
- Support :py:class:`CFTimeIndex` in :py:meth:`DataArray.interpolate_na`
- define 1970-01-01 as the default offset for the interpolation index for both
:py:class:`pandas.DatetimeIndex` and :py:class:`CFTimeIndex`,
- use microseconds in the conversion from timedelta objects to floats to avoid
overflow errors.
- Bug fixes:
- Applying a user-defined function that adds new dimensions using :py:func:`apply_ufunc`
and ``vectorize=True`` now works with ``dask > 2.0``. (:issue:`3574`, :pull:`3660`).
By `Deepak Cherian <https://github.com/dcherian>`_.
- Fix :py:meth:`~xarray.combine_by_coords` to allow for combining incomplete
hypercubes of Datasets (:issue:`3648`). By `Ian Bolliger
<https://github.com/bolliger32>`_.
- Fix :py:func:`~xarray.combine_by_coords` when combining cftime coordinates
which span long time intervals (:issue:`3535`). By `Spencer Clark
<https://github.com/spencerkclark>`_.
- Fix plotting with transposed 2D non-dimensional coordinates. (:issue:`3138`, :pull:`3441`)
By `Deepak Cherian <https://github.com/dcherian>`_.
- :py:meth:`plot.FacetGrid.set_titles` can now replace existing row titles of a
:py:class:`~xarray.plot.FacetGrid` plot. In addition :py:class:`~xarray.plot.FacetGrid` gained
two new attributes: :py:attr:`~xarray.plot.FacetGrid.col_labels` and
:py:attr:`~xarray.plot.FacetGrid.row_labels` contain :py:class:`matplotlib.text.Text` handles for both column and
row labels. These can be used to manually change the labels.
By `Deepak Cherian <https://github.com/dcherian>`_.
- Fix issue with Dask-backed datasets raising a ``KeyError`` on some computations involving :py:func:`map_blocks` (:pull:`3598`).
By `Tom Augspurger <https://github.com/TomAugspurger>`_.
- Ensure :py:meth:`Dataset.quantile`, :py:meth:`DataArray.quantile` issue the correct error
when ``q`` is out of bounds (:issue:`3634`) by `Mathias Hauser <https://github.com/mathause>`_.
- Fix regression in xarray 0.14.1 that prevented encoding times with certain
``dtype``, ``_FillValue``, and ``missing_value`` encodings (:issue:`3624`).
By `Spencer Clark <https://github.com/spencerkclark>`_
- Raise an error when trying to use :py:meth:`Dataset.rename_dims` to
rename to an existing name (:issue:`3438`, :pull:`3645`)
By `Justus Magin <https://github.com/keewis>`_.
- :py:meth:`Dataset.rename`, :py:meth:`DataArray.rename` now check for conflicts with
MultiIndex level names.
- :py:meth:`Dataset.merge` no longer fails when passed a :py:class:`DataArray` instead of a :py:class:`Dataset`.
By `Tom Nicholas <https://github.com/TomNicholas>`_.
- Fix a regression in :py:meth:`Dataset.drop`: allow passing any
iterable when dropping variables (:issue:`3552`, :pull:`3693`)
By `Justus Magin <https://github.com/keewis>`_.
- Fixed errors emitted by ``mypy --strict`` in modules that import xarray.
(:issue:`3695`) by `Guido Imperiale <https://github.com/crusaderky>`_.
- Allow plotting of binned coordinates on the y axis in :py:meth:`plot.line`
and :py:meth:`plot.step` plots (:issue:`3571`,
:pull:`3685`) by `Julien Seguinot <https://github.com/juseg>`_.
- Documentation:
- Switch doc examples to use `nbsphinx <https://nbsphinx.readthedocs.io>`_ and replace
``sphinx_gallery`` scripts with Jupyter notebooks. (:pull:`3105`, :pull:`3106`, :pull:`3121`)
By `Ryan Abernathey <https://github.com/rabernat>`_.
- Added :doc:`example notebook <examples/ROMS_ocean_model>` demonstrating use of xarray with
Regional Ocean Modeling System (ROMS) ocean hydrodynamic model output. (:pull:`3116`)
By `Robert Hetland <https://github.com/hetland>`_.
- Added :doc:`example notebook <examples/ERA5-GRIB-example>` demonstrating the visualization of
ERA5 GRIB data. (:pull:`3199`)
By `Zach Bruick <https://github.com/zbruick>`_ and
`Stephan Siemen <https://github.com/StephanSiemen>`_.
- Added examples for :py:meth:`DataArray.quantile`, :py:meth:`Dataset.quantile` and
``GroupBy.quantile``. (:pull:`3576`)
By `Justus Magin <https://github.com/keewis>`_.
- Add new :doc:`example notebook <examples/apply_ufunc_vectorize_1d>` example notebook demonstrating
vectorization of a 1D function using :py:func:`apply_ufunc` , dask and numba.
By `Deepak Cherian <https://github.com/dcherian>`_.
- Added example for :py:func:`~xarray.map_blocks`. (:pull:`3667`)
By `Riley X. Brady <https://github.com/bradyrx>`_.
- Internal Changes:
- Make sure dask names change when rechunking by different chunk sizes. Conversely, make sure they
stay the same when rechunking by the same chunk size. (:issue:`3350`)
By `Deepak Cherian <https://github.com/dcherian>`_.
- 2x to 5x speed boost (on small arrays) for :py:meth:`Dataset.isel`,
:py:meth:`DataArray.isel`, and :py:meth:`DataArray.__getitem__` when indexing by int,
slice, list of int, scalar ndarray, or 1-dimensional ndarray.
(:pull:`3533`) by `Guido Imperiale <https://github.com/crusaderky>`_.
- Removed internal method ``Dataset._from_vars_and_coord_names``,
which was dominated by ``Dataset._construct_direct``. (:pull:`3565`)
By `Maximilian Roos <https://github.com/max-sixty>`_.
- Replaced versioneer with setuptools-scm. Moved contents of setup.py to setup.cfg.
Removed pytest-runner from setup.py, as per deprecation notice on the pytest-runner
project. (:pull:`3714`) by `Guido Imperiale <https://github.com/crusaderky>`_.
- Use of isort is now enforced by CI.
(:pull:`3721`) by `Guido Imperiale <https://github.com/crusaderky>`_
OBS-URL: https://build.opensuse.org/request/show/770348
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-xarray?expand=0&rev=18
- This release brings many improvements to xarray's documentation: our examples are now binderized notebooks (`click here <https://mybinder.org/v2/gh/pydata/xarray/master?urlpath=lab/tree/doc/examples/weather-data.ipynb>`_):
- and we have new example notebooks from our SciPy 2019 sprint (many thanks to our contributors!).:
- This release also features many API improvements such as a new:
:py:class:`~core.accessor_dt.TimedeltaAccessor` and support for :py:class:`CFTimeIndex` in
:py:meth:`~DataArray.interpolate_na`); as well as many bug fixes.
- Breaking changes:
- Bumped minimum tested versions for dependencies:
- numpy 1.15
- pandas 0.25
- dask 2.2
- distributed 2.2
- scipy 1.3
- Remove ``compat`` and ``encoding`` kwargs from ``DataArray``, which
have been deprecated since 0.12. (:pull:`3650`).
Instead, specify the ``encoding`` kwarg when writing to disk or set
the :py:attr:`DataArray.encoding` attribute directly.
By `Maximilian Roos <https://github.com/max-sixty>`_.
- :py:func:`xarray.dot`, :py:meth:`DataArray.dot`, and the ``@`` operator now
use ``align="inner"`` (except when ``xarray.set_options(arithmetic_join="exact")``;
:issue:`3694`) by `Mathias Hauser <https://github.com/mathause>`_.
- New Features:
- :py:meth:`DataArray.sel` and :py:meth:`Dataset.sel` now support :py:class:`pandas.CategoricalIndex`. (:issue:`3669`)
By `Keisuke Fujii <https://github.com/fujiisoup>`_.
- Support using an existing, opened h5netcdf ``File`` with
:py:class:`~xarray.backends.H5NetCDFStore`. This permits creating an
:py:class:`~xarray.Dataset` from a h5netcdf ``File`` that has been opened
using other means (:issue:`3618`).
By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
- Implement ``median`` and ``nanmedian`` for dask arrays. This works by rechunking
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=31
- update to version 0.12.3:
- New functions/methods:
- New methods :py:meth:`Dataset.to_stacked_array` and
:py:meth:`DataArray.to_unstacked_dataset` for reshaping Datasets of variables
with different dimensions
(:issue:`1317`).
This is useful for feeding data from xarray into machine learning models,
as described in :ref:`reshape.stacking_different`.
- Enhancements:
- Support for renaming ``Dataset`` variables and dimensions independently
with :py:meth:`~Dataset.rename_vars` and :py:meth:`~Dataset.rename_dims`
(:issue:`3026`).
- Add ``scales``, ``offsets``, ``units`` and ``descriptions``
attributes to :py:class:`~xarray.DataArray` returned by
:py:func:`~xarray.open_rasterio`. (:issue:`3013`)
- Bug fixes:
- Resolved deprecation warnings from newer versions of matplotlib and dask.
- Compatibility fixes for the upcoming pandas 0.25 and NumPy 1.17 releases.
- Fix summaries for multiindex coordinates (:issue:`3079`).
- Fix HDF5 error that could arise when reading multiple groups from a file at
once (:issue:`2954`).
OBS-URL: https://build.opensuse.org/request/show/716615
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-xarray?expand=0&rev=13
- New functions/methods:
- New methods :py:meth:`Dataset.to_stacked_array` and
:py:meth:`DataArray.to_unstacked_dataset` for reshaping Datasets of variables
with different dimensions
(:issue:`1317`).
This is useful for feeding data from xarray into machine learning models,
as described in :ref:`reshape.stacking_different`.
- Enhancements:
- Support for renaming ``Dataset`` variables and dimensions independently
with :py:meth:`~Dataset.rename_vars` and :py:meth:`~Dataset.rename_dims`
(:issue:`3026`).
- Add ``scales``, ``offsets``, ``units`` and ``descriptions``
attributes to :py:class:`~xarray.DataArray` returned by
:py:func:`~xarray.open_rasterio`. (:issue:`3013`)
- Bug fixes:
- Resolved deprecation warnings from newer versions of matplotlib and dask.
- Compatibility fixes for the upcoming pandas 0.25 and NumPy 1.17 releases.
- Fix summaries for multiindex coordinates (:issue:`3079`).
- Fix HDF5 error that could arise when reading multiple groups from a file at
once (:issue:`2954`).
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=21
- New functions/methods:
- Two new functions, :py:func:`~xarray.combine_nested` and
:py:func:`~xarray.combine_by_coords`, allow for combining datasets along any
number of dimensions, instead of the one-dimensional list of datasets
supported by :py:func:`~xarray.concat`.
The new ``combine_nested`` will accept the datasets as a nested
list-of-lists, and combine by applying a series of concat and merge
operations. The new ``combine_by_coords`` instead uses the dimension
coordinates of datasets to order them.
:py:func:`~xarray.open_mfdataset` can use either ``combine_nested`` or
``combine_by_coords`` to combine datasets along multiple dimensions, by
specifying the argument ``combine='nested'`` or ``combine='by_coords'``.
The older function :py:func:`~xarray.auto_combine` has been deprecated,
because its functionality has been subsumed by the new functions.
To avoid FutureWarnings switch to using ``combine_nested`` or
``combine_by_coords``, (or set the ``combine`` argument in
``open_mfdataset``). (:issue:`2159`)
By `Tom Nicholas <http://github.com/TomNicholas>`_.
- :py:meth:`~xarray.DataArray.rolling_exp` and
:py:meth:`~xarray.Dataset.rolling_exp` added, similar to pandas'
``pd.DataFrame.ewm`` method. Calling ``.mean`` on the resulting object
will return an exponentially weighted moving average.
By `Maximilian Roos <https://github.com/max-sixty>`_.
- New :py:func:`DataArray.str <core.accessor_str.StringAccessor>` for string
related manipulations, based on ``pandas.Series.str``.
By `0x0L <https://github.com/0x0L>`_.
- Added ``strftime`` method to ``.dt`` accessor, making it simpler to hand a
datetime ``DataArray`` to other code expecting formatted dates and times.
(:issue:`2090`). :py:meth:`~xarray.CFTimeIndex.strftime` is also now
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=18
- Just use %pytest macro
- Update to version 0.12.1:
- Enhancements
- Allow ``expand_dims`` method to support inserting/broadcasting dimensions
with size > 1. (:issue:`2710`)
- Bug fixes
- Dataset.copy(deep=True) now creates a deep copy of the attrs (:issue:`2835`).
- Fix incorrect ``indexes`` resulting from various ``Dataset`` operations
(e.g., ``swap_dims``, ``isel``, ``reindex``, ``[]``) (:issue:`2842`,
:issue:`2856`).
OBS-URL: https://build.opensuse.org/request/show/697053
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-xarray?expand=0&rev=10
- Bug fixes
- Saving files with times encoded with reference dates with timezones
(e.g. '2000-01-01T00:00:00-05:00') no longer raises an error
(:issue:`2649`).
- Fixed performance regression with ``open_mfdataset`` (:issue:`2662`).
- Fixed supplying an explicit dimension in the ``concat_dim`` argument to
to ``open_mfdataset`` (:issue:`2647`).
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=13
- update to version 0.11.2:
- Removes inadvertently introduced setup dependency on pytest-runner (:issue:`2641`). Otherwise, this release is exactly equivalent to 0.11.1.
- Warning:
- This is the last xarray release that will support Python 2.7. Future releases will be Python 3 only, but older versions of xarray will always be available for Python 2.7 users. For the more details, see:
- update to version 0.11.1:
- Breaking changes
- Minimum rasterio version increased from 0.36 to 1.0 (for open_rasterio)
- Time bounds variables are now also decoded according to CF conventions (:issue:`2565`). The previous behavior was to decode them only if they had specific time attributes, now these attributes are copied automatically from the corresponding time coordinate. This might brake downstream code that was relying on these variables to be not decoded. By Fabien Maussion.
- Enhancements
- Ability to read and write consolidated metadata in zarr stores (:issue:`2558`). By Ryan Abernathey.
- :py:class:`CFTimeIndex` uses slicing for string indexing when possible (like :py:class:`pandas.DatetimeIndex`), which avoids unnecessary copies. By Stephan Hoyer
- Enable passing rasterio.io.DatasetReader or rasterio.vrt.WarpedVRT to open_rasterio instead of file path string. Allows for in-memory reprojection, see (:issue:`2588`). By Scott Henderson.
- Like :py:class:`pandas.DatetimeIndex`, :py:class:`CFTimeIndex` now supports "dayofyear" and "dayofweek" accessors (:issue:`2597`). Note this requires a version of cftime greater than 1.0.2. By Spencer Clark.
- The option 'warn_for_unclosed_files' (False by default) has been added to allow users to enable a warning when files opened by xarray are deallocated but were not explicitly closed. This is mostly useful for debugging; we recommend enabling it in your test suites if you use xarray for IO. By Stephan Hoyer
- Support Dask HighLevelGraphs by Matthew Rocklin.
- :py:meth:`DataArray.resample` and :py:meth:`Dataset.resample` now supports the loffset kwarg just like Pandas. By Deepak Cherian
- Datasets are now guaranteed to have a 'source' encoding, so the source file name is always stored (:issue:`2550`). By Tom Nicholas.
- The apply methods for DatasetGroupBy, DataArrayGroupBy, DatasetResample and DataArrayResample now support passing positional arguments to the applied function as a tuple to the args argument. By Matti Eskelinen.
- 0d slices of ndarrays are now obtained directly through indexing, rather than extracting and wrapping a scalar, avoiding unnecessary copying. By Daniel Wennberg.
- Added support for fill_value with :py:meth:`~xarray.DataArray.shift` and :py:meth:`~xarray.Dataset.shift` By Maximilian Roos
- Bug fixes
- Ensure files are automatically closed, if possible, when no longer referenced by a Python variable (:issue:`2560`). By Stephan Hoyer
- Fixed possible race conditions when reading/writing to disk in parallel (:issue:`2595`). By Stephan Hoyer
- Fix h5netcdf saving scalars with filters or chunks (:issue:`2563`). By Martin Raspaud.
- Fix parsing of _Unsigned attribute set by OPENDAP servers. (:issue:`2583`). By Deepak Cherian
- Fix failure in time encoding when exporting to netCDF with versions of pandas less than 0.21.1 (:issue:`2623`). By Spencer Clark.
- Fix MultiIndex selection to update label and level (:issue:`2619`). By Keisuke Fujii.
OBS-URL: https://build.opensuse.org/request/show/667881
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-xarray?expand=0&rev=7
- Removes inadvertently introduced setup dependency on pytest-runner (:issue:`2641`). Otherwise, this release is exactly equivalent to 0.11.1.
- Warning:
- This is the last xarray release that will support Python 2.7. Future releases will be Python 3 only, but older versions of xarray will always be available for Python 2.7 users. For the more details, see:
- update to version 0.11.1:
- Breaking changes
- Minimum rasterio version increased from 0.36 to 1.0 (for open_rasterio)
- Time bounds variables are now also decoded according to CF conventions (:issue:`2565`). The previous behavior was to decode them only if they had specific time attributes, now these attributes are copied automatically from the corresponding time coordinate. This might brake downstream code that was relying on these variables to be not decoded. By Fabien Maussion.
- Enhancements
- Ability to read and write consolidated metadata in zarr stores (:issue:`2558`). By Ryan Abernathey.
- :py:class:`CFTimeIndex` uses slicing for string indexing when possible (like :py:class:`pandas.DatetimeIndex`), which avoids unnecessary copies. By Stephan Hoyer
- Enable passing rasterio.io.DatasetReader or rasterio.vrt.WarpedVRT to open_rasterio instead of file path string. Allows for in-memory reprojection, see (:issue:`2588`). By Scott Henderson.
- Like :py:class:`pandas.DatetimeIndex`, :py:class:`CFTimeIndex` now supports "dayofyear" and "dayofweek" accessors (:issue:`2597`). Note this requires a version of cftime greater than 1.0.2. By Spencer Clark.
- The option 'warn_for_unclosed_files' (False by default) has been added to allow users to enable a warning when files opened by xarray are deallocated but were not explicitly closed. This is mostly useful for debugging; we recommend enabling it in your test suites if you use xarray for IO. By Stephan Hoyer
- Support Dask HighLevelGraphs by Matthew Rocklin.
- :py:meth:`DataArray.resample` and :py:meth:`Dataset.resample` now supports the loffset kwarg just like Pandas. By Deepak Cherian
- Datasets are now guaranteed to have a 'source' encoding, so the source file name is always stored (:issue:`2550`). By Tom Nicholas.
- The apply methods for DatasetGroupBy, DataArrayGroupBy, DatasetResample and DataArrayResample now support passing positional arguments to the applied function as a tuple to the args argument. By Matti Eskelinen.
- 0d slices of ndarrays are now obtained directly through indexing, rather than extracting and wrapping a scalar, avoiding unnecessary copying. By Daniel Wennberg.
- Added support for fill_value with :py:meth:`~xarray.DataArray.shift` and :py:meth:`~xarray.Dataset.shift` By Maximilian Roos
- Bug fixes
- Ensure files are automatically closed, if possible, when no longer referenced by a Python variable (:issue:`2560`). By Stephan Hoyer
- Fixed possible race conditions when reading/writing to disk in parallel (:issue:`2595`). By Stephan Hoyer
- Fix h5netcdf saving scalars with filters or chunks (:issue:`2563`). By Martin Raspaud.
- Fix parsing of _Unsigned attribute set by OPENDAP servers. (:issue:`2583`). By Deepak Cherian
- Fix failure in time encoding when exporting to netCDF with versions of pandas less than 0.21.1 (:issue:`2623`). By Spencer Clark.
- Fix MultiIndex selection to update label and level (:issue:`2619`). By Keisuke Fujii.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:numeric/python-xarray?expand=0&rev=7
