Merge remote-tracking branch 'upstream/master' into fix/groupby-reduce-multiple-dims

* upstream/master:
  change ALL_DIMS to equal ellipsis (pydata#3418)
  Escaping dtypes (pydata#3444)
  Html repr (pydata#3425)

Author: dcherian

MANIFEST.in

@@ -6,3 +6,4 @@ prune doc/generated
 global-exclude .DS_Store
 include versioneer.py
 include xarray/_version.py
+recursive-include xarray/static *

doc/examples/multidimensional-coords.rst

@@ -107,7 +107,7 @@ function to specify the output coordinates of the group.
     lat_center = np.arange(1, 90, 2)
     # group according to those bins and take the mean
     Tair_lat_mean = (ds.Tair.groupby_bins('xc', lat_bins, labels=lat_center)
-	             .mean(xr.ALL_DIMS))
+	             .mean(...))
     # plot the result
     @savefig xarray_multidimensional_coords_14_1.png width=5in
     Tair_lat_mean.plot();

doc/groupby.rst

@@ -116,7 +116,13 @@ dimensions *other than* the provided one:
 
 .. ipython:: python
 
-    ds.groupby('x').std(xr.ALL_DIMS)
+    ds.groupby('x').std(...)
+
+.. note::
+
+    We use an ellipsis (`...`) here to indicate we want to reduce over all
+    other dimensions  
+
 
 First and last
 ~~~~~~~~~~~~~~
@@ -127,7 +133,7 @@ values for group along the grouped dimension:
 
 .. ipython:: python
 
-    ds.groupby('letters').first(xr.ALL_DIMS)
+    ds.groupby('letters').first(...)
 
 By default, they skip missing values (control this with ``skipna``).
 
@@ -142,7 +148,7 @@ coordinates. For example:
 
 .. ipython:: python
 
-    alt = arr.groupby('letters').mean(xr.ALL_DIMS)
+    alt = arr.groupby('letters').mean(...)
     alt
     ds.groupby('letters') - alt
 
@@ -195,7 +201,7 @@ __ http://cfconventions.org/cf-conventions/v1.6.0/cf-conventions.html#_two_dimen
                 'lat': (['ny','nx'], [[10,10],[20,20]] ),},
         dims=['ny','nx'])
     da
-    da.groupby('lon').sum(xr.ALL_DIMS)
+    da.groupby('lon').sum(...)
     da.groupby('lon').apply(lambda x: x - x.mean(), shortcut=False)
 
 Because multidimensional groups have the ability to generate a very large
@@ -213,4 +219,4 @@ applying your function, and then unstacking the result:
 .. ipython:: python
 
    stacked = da.stack(gridcell=['ny', 'nx'])
-   stacked.groupby('gridcell').sum(xr.ALL_DIMS).unstack('gridcell')
+   stacked.groupby('gridcell').sum(...).unstack('gridcell')

doc/whats-new.rst

@@ -25,6 +25,11 @@ Breaking changes
 
 New Features
 ~~~~~~~~~~~~
+- Changed `xr.ALL_DIMS` to equal python's `Ellipsis` (`...`), and changed internal usages to use
+  `...` directly. As before, you can use this to instruct a `groupby` operation
+  to reduce over all dimensions. While we have no plans to remove `xr.ALL_DIMS`, we suggest
+  using `...`.
+  By `Maximilian Roos <https://github.com/max-sixty>`_
 - Added integration tests against `pint <https://pint.readthedocs.io/>`_.
   (:pull:`3238`) by `Justus Magin <https://github.com/keewis>`_.
 
@@ -36,6 +41,12 @@ New Features
     ``pip install git+https://github.com/andrewgsavage/pint.git@refs/pull/6/head)``.
     Even with it, interaction with non-numpy array libraries, e.g. dask or sparse, is broken.
 
+- Added new :py:meth:`Dataset._repr_html_` and :py:meth:`DataArray._repr_html_` to improve
+  representation of objects in jupyter. By default this feature is turned off
+  for now. Enable it with :py:meth:`xarray.set_options(display_style="html")`.
+  (:pull:`3425`) by `Benoit Bovy <https://github.com/benbovy>`_ and
+  `Julia Signell <https://github.com/jsignell>`_.
+
 Bug fixes
 ~~~~~~~~~
 - Fix regression introduced in v0.14.0 that would cause a crash if dask is installed

setup.py

@@ -104,5 +104,7 @@
     tests_require=TESTS_REQUIRE,
     url=URL,
     packages=find_packages(),
-    package_data={"xarray": ["py.typed", "tests/data/*"]},
+    package_data={
+        "xarray": ["py.typed", "tests/data/*", "static/css/*", "static/html/*"]
+    },
 )

xarray/core/common.py

@@ -1,5 +1,6 @@
 import warnings
 from contextlib import suppress
+from html import escape
 from textwrap import dedent
 from typing import (
     Any,
@@ -18,16 +19,16 @@
 import numpy as np
 import pandas as pd
 
-from . import dtypes, duck_array_ops, formatting, ops
+from . import dtypes, duck_array_ops, formatting, formatting_html, ops
 from .arithmetic import SupportsArithmetic
 from .npcompat import DTypeLike
-from .options import _get_keep_attrs
+from .options import OPTIONS, _get_keep_attrs
 from .pycompat import dask_array_type
 from .rolling_exp import RollingExp
-from .utils import Frozen, ReprObject, either_dict_or_kwargs
+from .utils import Frozen, either_dict_or_kwargs
 
 # Used as a sentinel value to indicate a all dimensions
-ALL_DIMS = ReprObject("<all-dims>")
+ALL_DIMS = ...
 
 
 C = TypeVar("C")
@@ -134,6 +135,11 @@ def __array__(self: Any, dtype: DTypeLike = None) -> np.ndarray:
     def __repr__(self) -> str:
         return formatting.array_repr(self)
 
+    def _repr_html_(self):
+        if OPTIONS["display_style"] == "text":
+            return f"<pre>{escape(repr(self))}</pre>"
+        return formatting_html.array_repr(self)
+
     def _iter(self: Any) -> Iterator[Any]:
         for n in range(len(self)):
             yield self[n]

xarray/core/dataset.py

@@ -3,6 +3,7 @@
 import sys
 import warnings
 from collections import defaultdict
+from html import escape
 from numbers import Number
 from pathlib import Path
 from typing import (
@@ -39,6 +40,7 @@
     dtypes,
     duck_array_ops,
     formatting,
+    formatting_html,
     groupby,
     ops,
     resample,
@@ -47,7 +49,6 @@
 )
 from .alignment import _broadcast_helper, _get_broadcast_dims_map_common_coords, align
 from .common import (
-    ALL_DIMS,
     DataWithCoords,
     ImplementsDatasetReduce,
     _contains_datetime_like_objects,
@@ -1619,6 +1620,11 @@ def to_zarr(
     def __repr__(self) -> str:
         return formatting.dataset_repr(self)
 
+    def _repr_html_(self):
+        if OPTIONS["display_style"] == "text":
+            return f"<pre>{escape(repr(self))}</pre>"
+        return formatting_html.dataset_repr(self)
+
     def info(self, buf=None) -> None:
         """
         Concise summary of a Dataset variables and attributes.
@@ -4030,7 +4036,7 @@ def reduce(
             Dataset with this object's DataArrays replaced with new DataArrays
             of summarized data and the indicated dimension(s) removed.
         """
-        if dim is None or dim is ALL_DIMS:
+        if dim is None or dim is ...:
             dims = set(self.dims)
         elif isinstance(dim, str) or not isinstance(dim, Iterable):
             dims = {dim}
@@ -4995,7 +5001,7 @@ def quantile(
 
         if isinstance(dim, str):
             dims = {dim}
-        elif dim is None or dim is ALL_DIMS:
+        elif dim in [None, ...]:
             dims = set(self.dims)
         else:
             dims = set(dim)