Merge branch 'main' into custom-groupers

* main: (63 commits)
  Fix zarr upstream tests (pydata#9927)
  Update pre-commit hooks (pydata#9925)
  split out CFDatetimeCoder, deprecate use_cftime as kwarg (pydata#9901)
  dev whats-new (pydata#9923)
  Whats-new 2025.01.0 (pydata#9919)
  Silence upstream Zarr warnings (pydata#9920)
  time coding refactor (pydata#9906)
  fix warning from scipy backend guess_can_open on directory (pydata#9911)
  Enhance and move ISO-8601 parser to coding.times (pydata#9899)
  Edit serialization error message (pydata#9916)
  friendlier error messages for missing chunk managers (pydata#9676)
  Bump codecov/codecov-action from 5.1.1 to 5.1.2 in the actions group (pydata#9915)
  Rewrite interp to use `apply_ufunc` (pydata#9881)
  Skip dask rolling (pydata#9909)
  Explicitly configure ReadTheDocs build to use conf.py (pydata#9908)
  Cache pre-existing Zarr arrays in Zarr backend (pydata#9861)
  Optimize idxmin, idxmax with dask (pydata#9800)
  remove unused "type: ignore" comments in test_plot.py (fixed in matplotlib 3.10.0) (pydata#9904)
  move scalar-handling logic into `possibly_convert_objects` (pydata#9900)
  Add missing DataTree attributes to docs (pydata#9876)
  ...

Author: dcherian

.binder/environment.yml

@@ -16,7 +16,7 @@ dependencies:
   - h5py
   - hdf5
   - iris
-  - lxml    # Optional dep of pydap
+  - lxml # Optional dep of pydap
   - matplotlib
   - nc-time-axis
   - netcdf4

.codecov.yml

@@ -10,7 +10,7 @@ coverage:
         flags:
           - unittests
         paths:
-         - "!xarray/tests/"
+          - "!xarray/tests/"
       unittests:
         target: 90%
         flags:

.github/dependabot.yml

@@ -1,10 +1,10 @@
 version: 2
 updates:
-  - package-ecosystem: 'github-actions'
-    directory: '/'
+  - package-ecosystem: "github-actions"
+    directory: "/"
     schedule:
       # Check for updates once a week
-      interval: 'weekly'
+      interval: "weekly"
     groups:
       actions:
         patterns:

.github/workflows/benchmarks-last-release.yml

@@ -24,15 +24,15 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
-          micromamba-version: '1.5.10-0'
+          micromamba-version: "1.5.10-0"
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           cache-environment: true
           cache-environment-key: "${{runner.os}}-${{runner.arch}}-py${{env.PYTHON_VERSION}}-${{env.TODAY}}-${{hashFiles(env.CONDA_ENV_FILE)}}-benchmark"
           create-args: >-
             asv
 
-      - name: 'Get Previous tag'
+      - name: "Get Previous tag"
         id: previoustag
         uses: "WyriHaximus/github-action-get-previous-tag@v1"
         # with:

.github/workflows/benchmarks.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Set up conda environment
         uses: mamba-org/setup-micromamba@v2
         with:
-          micromamba-version: '1.5.10-0'
+          micromamba-version: "1.5.10-0"
           environment-file: ${{env.CONDA_ENV_FILE}}
           environment-name: xarray-tests
           cache-environment: true
@@ -38,7 +38,6 @@ jobs:
             python-build
             mamba<=1.5.10
 
-
       - name: Run benchmarks
         shell: bash -l {0}
         id: benchmark

.github/workflows/ci-additional.yaml

@@ -123,7 +123,7 @@ jobs:
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report
 
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.2
         with:
           file: mypy_report/cobertura.xml
           flags: mypy
@@ -174,7 +174,7 @@ jobs:
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report
 
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.2
         with:
           file: mypy_report/cobertura.xml
           flags: mypy-min
@@ -230,7 +230,7 @@ jobs:
           python -m pyright xarray/
 
       - name: Upload pyright coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.2
         with:
           file: pyright_report/cobertura.xml
           flags: pyright
@@ -286,7 +286,7 @@ jobs:
           python -m pyright xarray/
 
       - name: Upload pyright coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.2
         with:
           file: pyright_report/cobertura.xml
           flags: pyright39

.github/workflows/ci.yaml

@@ -159,7 +159,9 @@ jobs:
           path: pytest.xml
 
       - name: Upload code coverage to Codecov
-        uses: codecov/[email protected]
+        uses: codecov/[email protected]
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           file: ./coverage.xml
           flags: unittests

.github/workflows/hypothesis.yaml

@@ -37,12 +37,12 @@ jobs:
     runs-on: "ubuntu-latest"
     needs: detect-ci-trigger
     if: |
-        always()
-        && (
-            needs.detect-ci-trigger.outputs.triggered == 'false'
-            && ( (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
-                || contains( github.event.pull_request.labels.*.name, 'run-slow-hypothesis'))
-        )
+      always()
+      && (
+          needs.detect-ci-trigger.outputs.triggered == 'false'
+          && ( (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
+              || contains( github.event.pull_request.labels.*.name, 'run-slow-hypothesis'))
+      )
     defaults:
       run:
         shell: bash -l {0}
@@ -92,8 +92,8 @@ jobs:
         if: success()
         id: status
         run: |
-           python -m pytest --hypothesis-show-statistics --run-slow-hypothesis properties/*.py \
-             --report-log output-${{ matrix.python-version }}-log.jsonl
+          python -m pytest --hypothesis-show-statistics --run-slow-hypothesis properties/*.py \
+            --report-log output-${{ matrix.python-version }}-log.jsonl
 
       # explicitly save the cache so it gets updated, also do this even if it fails.
       - name: Save cached hypothesis directory

.github/workflows/pypi-release.yaml

@@ -5,7 +5,7 @@ on:
       - published
   push:
     tags:
-      - 'v*'
+      - "v*"
 
 jobs:
   build-artifacts:
@@ -88,12 +88,11 @@ jobs:
           path: dist
       - name: Publish package to TestPyPI
         if: github.event_name == 'push'
-        uses: pypa/[email protected].2
+        uses: pypa/[email protected].3
         with:
           repository_url: https://test.pypi.org/legacy/
           verbose: true
 
-
   upload-to-pypi:
     needs: test-built-dist
     if: github.event_name == 'release'
@@ -111,6 +110,6 @@ jobs:
           name: releases
           path: dist
       - name: Publish package to PyPI
-        uses: pypa/[email protected].2
+        uses: pypa/[email protected].3
         with:
           verbose: true

.github/workflows/upstream-dev-ci.yaml

@@ -43,12 +43,12 @@ jobs:
     env:
       ZARR_V3_EXPERIMENTAL_API: 1
     if: |
-        always()
-        && (
-            (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
-            || needs.detect-ci-trigger.outputs.triggered == 'true'
-            || contains( github.event.pull_request.labels.*.name, 'run-upstream')
-        )
+      always()
+      && (
+          (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
+          || needs.detect-ci-trigger.outputs.triggered == 'true'
+          || contains( github.event.pull_request.labels.*.name, 'run-upstream')
+      )
     defaults:
       run:
         shell: bash -l {0}
@@ -101,10 +101,10 @@ jobs:
     runs-on: ubuntu-latest
     needs: detect-ci-trigger
     if: |
-        always()
-        && (
-            contains( github.event.pull_request.labels.*.name, 'run-upstream')
-        )
+      always()
+      && (
+          contains( github.event.pull_request.labels.*.name, 'run-upstream')
+      )
     defaults:
       run:
         shell: bash -l {0}
@@ -140,7 +140,7 @@ jobs:
         run: |
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.6.0
+        uses: codecov/codecov-action@v5.1.2
         with:
           file: mypy_report/cobertura.xml
           flags: mypy