Pin pint to >=0.22 (#8445)

* unpin pint

* More unpins

* Try>=0.21

* Bump pint to >=0.22

* Undo windows test skips

* Remove nanprod skips

* Bump min-deps

* use exact pin

---------

Co-authored-by: Justus Magin <[email protected]>

Author: dcherian

.binder/environment.yml

@@ -2,7 +2,7 @@ name: xarray-examples
 channels:
   - conda-forge
 dependencies:
-  - python=3.9
+  - python=3.10
   - boto3
   - bottleneck
   - cartopy
@@ -25,7 +25,7 @@ dependencies:
   - numpy
   - packaging
   - pandas
-  - pint
+  - pint>=0.22
   - pip
   - pooch
   - pydap

ci/requirements/all-but-dask.yml

@@ -26,7 +26,7 @@ dependencies:
   - numpy
   - packaging
   - pandas
-  - pint<0.21
+  - pint>=0.22
   - pip
   - pseudonetcdf
   - pydap

ci/requirements/environment-py311.yml

@@ -28,7 +28,7 @@ dependencies:
   - numpy
   - packaging
   - pandas
-  - pint<0.21
+  - pint>=0.22
   - pip
   - pooch
   - pre-commit

ci/requirements/environment-windows-py311.yml

@@ -25,7 +25,7 @@ dependencies:
   - numpy
   - packaging
   - pandas
-  - pint<0.21
+  - pint>=0.22
   - pip
   - pre-commit
   - pseudonetcdf

ci/requirements/environment-windows.yml

@@ -25,7 +25,7 @@ dependencies:
   - numpy
   - packaging
   - pandas
-  - pint<0.21
+  - pint>=0.22
   - pip
   - pre-commit
   - pseudonetcdf

ci/requirements/environment.yml

@@ -29,7 +29,7 @@ dependencies:
   - opt_einsum
   - packaging
   - pandas
-  - pint<0.21
+  - pint>=0.22
   - pip
   - pooch
   - pre-commit

ci/requirements/min-all-deps.yml

@@ -35,7 +35,7 @@ dependencies:
   - numpy=1.22
   - packaging=21.3
   - pandas=1.4
-  - pint=0.19
+  - pint=0.22
   - pip
   - pseudonetcdf=3.2
   - pydap=3.3

doc/whats-new.rst

@@ -30,6 +30,7 @@ New Features
 Breaking changes
 ~~~~~~~~~~~~~~~~
 
+- Bump minimum tested pint version to ``>=0.22``. By `Deepak Cherian <https://github.com/dcherian>`_.
 
 Deprecations
 ~~~~~~~~~~~~

xarray/tests/test_units.py

@@ -2,12 +2,10 @@
 
 import functools
 import operator
-import sys
 
 import numpy as np
 import pandas as pd
 import pytest
-from packaging import version
 
 import xarray as xr
 from xarray.core import dtypes, duck_array_ops
@@ -1513,10 +1511,6 @@ def test_dot_dataarray(dtype):
 
 
 class TestVariable:
-    @pytest.mark.skipif(
-        (sys.version_info >= (3, 11)) and sys.platform.startswith("win"),
-        reason="fails for some reason on win and 3.11, GH7971",
-    )
     @pytest.mark.parametrize(
         "func",
         (
@@ -1539,13 +1533,6 @@ class TestVariable:
         ids=repr,
     )
     def test_aggregation(self, func, dtype):
-        if (
-            func.name == "prod"
-            and dtype.kind == "f"
-            and version.parse(pint.__version__) < version.parse("0.19")
-        ):
-            pytest.xfail(reason="nanprod is not by older `pint` versions")
-
         array = np.linspace(0, 1, 10).astype(dtype) * (
             unit_registry.m if func.name != "cumprod" else unit_registry.dimensionless
         )
@@ -2348,10 +2335,6 @@ def test_repr(self, func, variant, dtype):
         # warnings or errors, but does not check the result
         func(data_array)
 
-    @pytest.mark.skipif(
-        (sys.version_info >= (3, 11)) and sys.platform.startswith("win"),
-        reason="fails for some reason on win and 3.11, GH7971",
-    )
     @pytest.mark.parametrize(
         "func",
         (
@@ -2404,13 +2387,6 @@ def test_repr(self, func, variant, dtype):
         ids=repr,
     )
     def test_aggregation(self, func, dtype):
-        if (
-            func.name == "prod"
-            and dtype.kind == "f"
-            and version.parse(pint.__version__) < version.parse("0.19")
-        ):
-            pytest.xfail(reason="nanprod is not by older `pint` versions")
-
         array = np.arange(10).astype(dtype) * (
             unit_registry.m if func.name != "cumprod" else unit_registry.dimensionless
         )
@@ -2429,10 +2405,6 @@ def test_aggregation(self, func, dtype):
         assert_units_equal(expected, actual)
         assert_allclose(expected, actual)
 
-    @pytest.mark.skipif(
-        (sys.version_info >= (3, 11)) and sys.platform.startswith("win"),
-        reason="fails for some reason on win and 3.11, GH7971",
-    )
     @pytest.mark.parametrize(
         "func",
         (
@@ -4085,10 +4057,6 @@ def test_repr(self, func, variant, dtype):
         # warnings or errors, but does not check the result
         func(ds)
 
-    @pytest.mark.skipif(
-        (sys.version_info >= (3, 11)) and sys.platform.startswith("win"),
-        reason="fails for some reason on win and 3.11, GH7971",
-    )
     @pytest.mark.parametrize(
         "func",
         (
@@ -4110,13 +4078,6 @@ def test_repr(self, func, variant, dtype):
         ids=repr,
     )
     def test_aggregation(self, func, dtype):
-        if (
-            func.name == "prod"
-            and dtype.kind == "f"
-            and version.parse(pint.__version__) < version.parse("0.19")
-        ):
-            pytest.xfail(reason="nanprod is not by older `pint` versions")
-
         unit_a, unit_b = (
             (unit_registry.Pa, unit_registry.degK)
             if func.name != "cumprod"
@@ -5647,10 +5608,6 @@ def test_merge(self, variant, unit, error, dtype):
 
 @requires_dask
 class TestPintWrappingDask:
-    @pytest.mark.skipif(
-        version.parse(pint.__version__) <= version.parse("0.21"),
-        reason="pint didn't support dask properly before 0.21",
-    )
     def test_duck_array_ops(self):
         import dask.array