Merge branch 'main' into backend-indexing

* main:
  Bump codecov/codecov-action from 4.3.1 to 4.4.0 in the actions group (#9036)
  Use ME in test_plot instead of M (#9035)
  Fix numbagg or bottlekneck skip (#9034)
  [skip-ci] min_deps_check: show age of required pkg on error (#9025)
  attempt to get colour output in CI (#9031)

.github/workflows/ci-additional.yaml

@@ -21,6 +21,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  FORCE_COLOR: 3
+
 jobs:
   detect-ci-trigger:
     name: detect ci trigger
@@ -136,7 +139,7 @@ jobs:
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report xarray/
 
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: mypy_report/cobertura.xml
           flags: mypy
@@ -190,7 +193,7 @@ jobs:
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report xarray/
 
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: mypy_report/cobertura.xml
           flags: mypy39
@@ -251,7 +254,7 @@ jobs:
           python -m pyright xarray/
 
       - name: Upload pyright coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: pyright_report/cobertura.xml
           flags: pyright
@@ -310,7 +313,7 @@ jobs:
           python -m pyright xarray/
 
       - name: Upload pyright coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: pyright_report/cobertura.xml
           flags: pyright39

.github/workflows/ci.yaml

@@ -20,6 +20,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  FORCE_COLOR: 3
+
 jobs:
   detect-ci-trigger:
     name: detect ci trigger
@@ -164,7 +167,7 @@ jobs:
           path: pytest.xml
 
       - name: Upload code coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: ./coverage.xml
           flags: unittests

.github/workflows/hypothesis.yaml

@@ -11,6 +11,9 @@ on:
     - cron: "0 0 * * *" # Daily “At 00:00” UTC
   workflow_dispatch: # allows you to trigger manually
 
+env:
+  FORCE_COLOR: 3
+
 jobs:
   detect-ci-trigger:
     name: detect ci trigger

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

@@ -15,6 +15,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  FORCE_COLOR: 3
+
 jobs:
   detect-ci-trigger:
     name: detect upstream-dev ci trigger
@@ -143,7 +146,7 @@ jobs:
         run: |
           python -m mypy --install-types --non-interactive --cobertura-xml-report mypy_report
       - name: Upload mypy coverage to Codecov
-        uses: codecov/codecov-action@v4.3.1
+        uses: codecov/codecov-action@v4.4.0
         with:
           file: mypy_report/cobertura.xml
           flags: mypy

ci/min_deps_check.py

@@ -23,12 +23,12 @@
     "isort",
     "mypy",
     "pip",
-    "setuptools",
     "pytest",
     "pytest-cov",
     "pytest-env",
-    "pytest-xdist",
     "pytest-timeout",
+    "pytest-xdist",
+    "setuptools",
 }
 
 POLICY_MONTHS = {"python": 30, "numpy": 18}
@@ -162,11 +162,11 @@ def process_pkg(
         status = "<"
     elif (req_major, req_minor) > (policy_major, policy_minor):
         status = "> (!)"
-        delta = relativedelta(datetime.now(), policy_published_actual).normalized()
+        delta = relativedelta(datetime.now(), req_published).normalized()
         n_months = delta.years * 12 + delta.months
         warning(
-            f"Package is too new: {pkg}={policy_major}.{policy_minor} was "
-            f"published on {versions[policy_major, policy_minor]:%Y-%m-%d} "
+            f"Package is too new: {pkg}={req_major}.{req_minor} was "
+            f"published on {req_published:%Y-%m-%d} "
             f"which was {n_months} months ago (policy is {policy_months} months)"
         )
     else:

xarray/tests/__init__.py

@@ -145,7 +145,7 @@ def _importorskip(
 )
 has_numbagg_or_bottleneck = has_numbagg or has_bottleneck
 requires_numbagg_or_bottleneck = pytest.mark.skipif(
-    not has_scipy_or_netCDF4, reason="requires scipy or netCDF4"
+    not has_numbagg_or_bottleneck, reason="requires numbagg or bottlekneck"
 )
 has_numpy_array_api, requires_numpy_array_api = _importorskip("numpy", "1.26.0")
 has_numpy_2, requires_numpy_2 = _importorskip("numpy", "2.0.0")

xarray/tests/test_plot.py

@@ -3002,7 +3002,7 @@ def setUp(self) -> None:
         data = np.sin(2 * np.pi * month / 12.0)
         darray = DataArray(data, dims=["time"])
         darray.coords["time"] = xr.cftime_range(
-            start="2017", periods=12, freq="1M", calendar="noleap"
+            start="2017", periods=12, freq="1ME", calendar="noleap"
         )
 
         self.darray = darray