Update pre-commit hooks

.pre-commit-config.yaml

@@ -25,7 +25,7 @@ repos:
       - id: text-unicode-replacement-char
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.9.9
+    rev: v0.11.4
     hooks:
       - id: ruff-format
       - id: ruff
@@ -69,12 +69,12 @@ repos:
       - id: taplo-format
         args: ["--option", "array_auto_collapse=false"]
   - repo: https://github.com/abravalheri/validate-pyproject
-    rev: v0.23
+    rev: v0.24.1
     hooks:
       - id: validate-pyproject
         additional_dependencies: ["validate-pyproject-schema-store[all]"]
   - repo: https://github.com/crate-ci/typos
-    rev: dictgen-v0.3.1
+    rev: v1
     hooks:
       - id: typos
         # https://github.com/crate-ci/typos/issues/347

design_notes/flexible_indexes_notes.md

@@ -166,7 +166,7 @@ Besides `pandas.Index`, other indexes currently supported in Xarray like `CFTime
 
 Like for the indexes, explicit coordinate creation should be preferred over implicit coordinate creation. However, there may be some situations where we would like to keep creating coordinates implicitly for backwards compatibility.
 
-For example, it is currently possible to pass a `pandas.MulitIndex` object as a coordinate to the Dataset/DataArray constructor:
+For example, it is currently possible to pass a `pandas.MultiIndex` object as a coordinate to the Dataset/DataArray constructor:
 
 ```python
 >>> midx = pd.MultiIndex.from_arrays([['a', 'b'], [0, 1]], names=['lvl1', 'lvl2'])

doc/getting-started-guide/quick-overview.rst

@@ -128,7 +128,7 @@ Operations also align based on index labels:
 
     data[:-1] - data[:1]
 
-For more, see :ref:`comput`.
+For more, see :ref:`compute`.
 
 GroupBy
 -------

doc/user-guide/computation.rst

@@ -1,6 +1,6 @@
 .. currentmodule:: xarray
 
-.. _comput:
+.. _compute:
 
 ###########
 Computation
@@ -236,7 +236,7 @@ These operations automatically skip missing values, like in pandas:
 If desired, you can disable this behavior by invoking the aggregation method
 with ``skipna=False``.
 
-.. _comput.rolling:
+.. _compute.rolling:
 
 Rolling window operations
 =========================
@@ -308,7 +308,7 @@ We can also manually iterate through ``Rolling`` objects:
         # arr_window is a view of x
         ...
 
-.. _comput.rolling_exp:
+.. _compute.rolling_exp:
 
 While ``rolling`` provides a simple moving average, ``DataArray`` also supports
 an exponential moving average with :py:meth:`~xarray.DataArray.rolling_exp`.
@@ -354,7 +354,7 @@ You can also use ``construct`` to compute a weighted rolling sum:
   To avoid this, use ``skipna=False`` as the above example.
 
 
-.. _comput.weighted:
+.. _compute.weighted:
 
 Weighted array reductions
 =========================
@@ -823,7 +823,7 @@ Arithmetic between two datasets matches data variables of the same name:
 Similarly to index based alignment, the result has the intersection of all
 matching data variables.
 
-.. _comput.wrapping-custom:
+.. _compute.wrapping-custom:
 
 Wrapping custom computation
 ===========================

doc/user-guide/dask.rst

@@ -282,7 +282,7 @@ we use to calculate `Spearman's rank-correlation coefficient <https://en.wikiped
 
 The only aspect of this example that is different from standard usage of
 ``apply_ufunc()`` is that we needed to supply the ``output_dtypes`` arguments.
-(Read up on :ref:`comput.wrapping-custom` for an explanation of the
+(Read up on :ref:`compute.wrapping-custom` for an explanation of the
 "core dimensions" listed in ``input_core_dims``.)
 
 Our new ``spearman_correlation()`` function achieves near linear speedup

doc/user-guide/data-structures.rst

@@ -880,7 +880,7 @@ them into dataset objects:
 
 The merge method is particularly interesting, because it implements the same
 logic used for merging coordinates in arithmetic operations
-(see :ref:`comput`):
+(see :ref:`compute`):
 
 .. ipython:: python
 

doc/user-guide/indexing.rst

@@ -276,7 +276,7 @@ This is particularly useful for ragged indexing of multi-dimensional data,
 e.g., to apply a 2D mask to an image. Note that ``where`` follows all the
 usual xarray broadcasting and alignment rules for binary operations (e.g.,
 ``+``) between the object being indexed and the condition, as described in
-:ref:`comput`:
+:ref:`compute`:
 
 .. ipython:: python
 

doc/whats-new.rst

@@ -4281,7 +4281,7 @@ New Features
 ~~~~~~~~~~~~
 
 - Weighted array reductions are now supported via the new :py:meth:`DataArray.weighted`
-  and :py:meth:`Dataset.weighted` methods. See :ref:`comput.weighted`. (:issue:`422`, :pull:`2922`).
+  and :py:meth:`Dataset.weighted` methods. See :ref:`compute.weighted`. (:issue:`422`, :pull:`2922`).
   By `Mathias Hauser <https://github.com/mathause>`_.
 - The new jupyter notebook repr (``Dataset._repr_html_`` and
   ``DataArray._repr_html_``) (introduced in 0.14.1) is now on by default. To
@@ -6412,7 +6412,7 @@ Enhancements
 - New helper function :py:func:`~xarray.apply_ufunc` for wrapping functions
   written to work on NumPy arrays to support labels on xarray objects
   (:issue:`770`). ``apply_ufunc`` also support automatic parallelization for
-  many functions with dask. See :ref:`comput.wrapping-custom` and
+  many functions with dask. See :ref:`compute.wrapping-custom` and
   :ref:`dask.automatic-parallelization` for details.
   By `Stephan Hoyer <https://github.com/shoyer>`_.
 
@@ -7434,7 +7434,7 @@ Enhancements
       * x        (x) int64 0 1 2
       * y        (y) int64 0 1 2 3 4
 
-  See :ref:`comput.rolling` for more details. By
+  See :ref:`compute.rolling` for more details. By
   `Joe Hamman <https://github.com/jhamman>`_.
 
 Bug fixes

xarray/backends/zarr.py

@@ -1290,7 +1290,7 @@ def _validate_and_autodetect_region(self, ds: Dataset) -> Dataset:
         region = self._write_region
 
         if region == "auto":
-            region = {dim: "auto" for dim in ds.dims}
+            region = dict.fromkeys(ds.dims, "auto")
 
         if not isinstance(region, dict):
             raise TypeError(f"``region`` must be a dict, got {type(region)}")

xarray/computation/fit.py

@@ -80,8 +80,8 @@ def _initialize_feasible(lb, ub):
         )
         return p0
 
-    param_defaults = {p: 1 for p in params}
-    bounds_defaults = {p: (-np.inf, np.inf) for p in params}
+    param_defaults = dict.fromkeys(params, 1)
+    bounds_defaults = dict.fromkeys(params, (-np.inf, np.inf))
     for p in params:
         if p in func_args and func_args[p].default is not func_args[p].empty:
             param_defaults[p] = func_args[p].default

xarray/computation/rolling.py

@@ -1087,7 +1087,7 @@ def __init__(
         if utils.is_dict_like(coord_func):
             coord_func_map = coord_func
         else:
-            coord_func_map = {d: coord_func for d in self.obj.dims}
+            coord_func_map = dict.fromkeys(self.obj.dims, coord_func)
         for c in self.obj.coords:
             if c not in coord_func_map:
                 coord_func_map[c] = duck_array_ops.mean  # type: ignore[index]

xarray/core/common.py

@@ -457,7 +457,7 @@ def squeeze(
         numpy.squeeze
         """
         dims = get_squeeze_dims(self, dim, axis)
-        return self.isel(drop=drop, **{d: 0 for d in dims})
+        return self.isel(drop=drop, **dict.fromkeys(dims, 0))
 
     def clip(
         self,
@@ -1701,11 +1701,11 @@ def full_like(
 
     if isinstance(other, Dataset):
         if not isinstance(fill_value, dict):
-            fill_value = {k: fill_value for k in other.data_vars.keys()}
+            fill_value = dict.fromkeys(other.data_vars.keys(), fill_value)
 
         dtype_: Mapping[Any, DTypeLikeSave]
         if not isinstance(dtype, Mapping):
-            dtype_ = {k: dtype for k in other.data_vars.keys()}
+            dtype_ = dict.fromkeys(other.data_vars.keys(), dtype)
         else:
             dtype_ = dtype
 

xarray/core/coordinates.py

@@ -309,7 +309,7 @@ def __init__(
                 var = as_variable(data, name=name, auto_convert=False)
                 if var.dims == (name,) and indexes is None:
                     index, index_vars = create_default_index_implicit(var, list(coords))
-                    default_indexes.update({k: index for k in index_vars})
+                    default_indexes.update(dict.fromkeys(index_vars, index))
                     variables.update(index_vars)
                 else:
                     variables[name] = var
@@ -384,7 +384,7 @@ def from_xindex(cls, index: Index) -> Self:
                 f"create any coordinate.\n{index!r}"
             )
 
-        indexes = {name: index for name in variables}
+        indexes = dict.fromkeys(variables, index)
 
         return cls(coords=variables, indexes=indexes)
 
@@ -412,7 +412,7 @@ def from_pandas_multiindex(cls, midx: pd.MultiIndex, dim: Hashable) -> Self:
         xr_idx = PandasMultiIndex(midx, dim)
 
         variables = xr_idx.create_variables()
-        indexes = {k: xr_idx for k in variables}
+        indexes = dict.fromkeys(variables, xr_idx)
 
         return cls(coords=variables, indexes=indexes)
 
@@ -1134,7 +1134,7 @@ def create_coords_with_default_indexes(
             # pandas multi-index edge cases.
             variable = variable.to_index_variable()
             idx, idx_vars = create_default_index_implicit(variable, all_variables)
-            indexes.update({k: idx for k in idx_vars})
+            indexes.update(dict.fromkeys(idx_vars, idx))
             variables.update(idx_vars)
             all_variables.update(idx_vars)
         else:
@@ -1159,7 +1159,7 @@ def _coordinates_from_variable(variable: Variable) -> Coordinates:
 
     (name,) = variable.dims
     new_index, index_vars = create_default_index_implicit(variable)
-    indexes = {k: new_index for k in index_vars}
+    indexes = dict.fromkeys(index_vars, new_index)
     new_vars = new_index.create_variables()
     new_vars[name].attrs = variable.attrs
     return Coordinates(new_vars, indexes)

xarray/core/dataarray.py

@@ -7078,7 +7078,7 @@ def weighted(self, weights: DataArray) -> DataArrayWeighted:
         --------
         :func:`Dataset.weighted <Dataset.weighted>`
 
-        :ref:`comput.weighted`
+        :ref:`compute.weighted`
             User guide on weighted array reduction using :py:func:`~xarray.DataArray.weighted`
 
         :doc:`xarray-tutorial:fundamentals/03.4_weighted`

xarray/core/dataset.py

@@ -1122,7 +1122,7 @@ def _copy_listed(self, names: Iterable[Hashable]) -> Self:
                     coord_names.add(var_name)
                 if (var_name,) == var.dims:
                     index, index_vars = create_default_index_implicit(var, names)
-                    indexes.update({k: index for k in index_vars})
+                    indexes.update(dict.fromkeys(index_vars, index))
                     variables.update(index_vars)
                     coord_names.update(index_vars)
 
@@ -3012,7 +3012,7 @@ def head(
             if not isinstance(indexers, int) and not is_dict_like(indexers):
                 raise TypeError("indexers must be either dict-like or a single integer")
         if isinstance(indexers, int):
-            indexers = {dim: indexers for dim in self.dims}
+            indexers = dict.fromkeys(self.dims, indexers)
         indexers = either_dict_or_kwargs(indexers, indexers_kwargs, "head")
         for k, v in indexers.items():
             if not isinstance(v, int):
@@ -3100,7 +3100,7 @@ def tail(
             if not isinstance(indexers, int) and not is_dict_like(indexers):
                 raise TypeError("indexers must be either dict-like or a single integer")
         if isinstance(indexers, int):
-            indexers = {dim: indexers for dim in self.dims}
+            indexers = dict.fromkeys(self.dims, indexers)
         indexers = either_dict_or_kwargs(indexers, indexers_kwargs, "tail")
         for k, v in indexers.items():
             if not isinstance(v, int):
@@ -3186,7 +3186,7 @@ def thin(
         ):
             raise TypeError("indexers must be either dict-like or a single integer")
         if isinstance(indexers, int):
-            indexers = {dim: indexers for dim in self.dims}
+            indexers = dict.fromkeys(self.dims, indexers)
         indexers = either_dict_or_kwargs(indexers, indexers_kwargs, "thin")
         for k, v in indexers.items():
             if not isinstance(v, int):
@@ -4029,7 +4029,7 @@ def _rename_indexes(
         for index, coord_names in self.xindexes.group_by_index():
             new_index = index.rename(name_dict, dims_dict)
             new_coord_names = [name_dict.get(k, k) for k in coord_names]
-            indexes.update({k: new_index for k in new_coord_names})
+            indexes.update(dict.fromkeys(new_coord_names, new_index))
             new_index_vars = new_index.create_variables(
                 {
                     new: self._variables[old]
@@ -4315,7 +4315,7 @@ def swap_dims(
                     variables[current_name] = var
                 else:
                     index, index_vars = create_default_index_implicit(var)
-                    indexes.update({name: index for name in index_vars})
+                    indexes.update(dict.fromkeys(index_vars, index))
                     variables.update(index_vars)
                     coord_names.update(index_vars)
             else:
@@ -4474,7 +4474,7 @@ def expand_dims(
         elif isinstance(dim, Sequence):
             if len(dim) != len(set(dim)):
                 raise ValueError("dims should not contain duplicate values.")
-            dim = {d: 1 for d in dim}
+            dim = dict.fromkeys(dim, 1)
 
         dim = either_dict_or_kwargs(dim, dim_kwargs, "expand_dims")
         assert isinstance(dim, MutableMapping)
@@ -4700,7 +4700,7 @@ def set_index(
                 for n in idx.index.names:
                     replace_dims[n] = dim
 
-            new_indexes.update({k: idx for k in idx_vars})
+            new_indexes.update(dict.fromkeys(idx_vars, idx))
             new_variables.update(idx_vars)
 
         # re-add deindexed coordinates (convert to base variables)
@@ -4816,7 +4816,7 @@ def drop_or_convert(var_names):
                     # instead replace it by a new (multi-)index with dropped level(s)
                     idx = index.keep_levels(keep_level_vars)
                     idx_vars = idx.create_variables(keep_level_vars)
-                    new_indexes.update({k: idx for k in idx_vars})
+                    new_indexes.update(dict.fromkeys(idx_vars, idx))
                     new_variables.update(idx_vars)
                     if not isinstance(idx, PandasMultiIndex):
                         # multi-index reduced to single index
@@ -4996,7 +4996,7 @@ def reorder_levels(
             level_vars = {k: self._variables[k] for k in order}
             idx = index.reorder_levels(level_vars)
             idx_vars = idx.create_variables(level_vars)
-            new_indexes.update({k: idx for k in idx_vars})
+            new_indexes.update(dict.fromkeys(idx_vars, idx))
             new_variables.update(idx_vars)
 
         indexes = {k: v for k, v in self._indexes.items() if k not in new_indexes}
@@ -5104,7 +5104,7 @@ def _stack_once(
             if len(product_vars) == len(dims):
                 idx = index_cls.stack(product_vars, new_dim)
                 new_indexes[new_dim] = idx
-                new_indexes.update({k: idx for k in product_vars})
+                new_indexes.update(dict.fromkeys(product_vars, idx))
                 idx_vars = idx.create_variables(product_vars)
                 # keep consistent multi-index coordinate order
                 for k in idx_vars:
@@ -5351,7 +5351,7 @@ def _unstack_full_reindex(
             # TODO: we may depreciate implicit re-indexing with a pandas.MultiIndex
             xr_full_idx = PandasMultiIndex(full_idx, dim)
             indexers = Indexes(
-                {k: xr_full_idx for k in index_vars},
+                dict.fromkeys(index_vars, xr_full_idx),
                 xr_full_idx.create_variables(index_vars),
             )
             obj = self._reindex(
@@ -10052,7 +10052,7 @@ def weighted(self, weights: DataArray) -> DatasetWeighted:
         --------
         :func:`DataArray.weighted <DataArray.weighted>`
 
-        :ref:`comput.weighted`
+        :ref:`compute.weighted`
             User guide on weighted array reduction using :py:func:`~xarray.Dataset.weighted`
 
         :doc:`xarray-tutorial:fundamentals/03.4_weighted`