remove xarray as hard dependency

ci/310-oldest.yaml

@@ -12,7 +12,6 @@ dependencies:
   - requests=2.27
   - scipy=1.8
   - shapely=2.0.1
-  - xarray=2022.3
   # testing
   - codecov
   - matplotlib>=3.6
@@ -29,6 +28,7 @@ dependencies:
   - scikit-learn=1.1
   - sqlalchemy=2.0
   - zstd
+  - xarray=2022.3
   - pip
   - pip:
       - platformdirs==2.0.2

ci/310.yaml

@@ -12,7 +12,6 @@ dependencies:
   - requests
   - scipy
   - shapely
-  - xarray
   # testing
   - codecov
   - matplotlib
@@ -28,4 +27,5 @@ dependencies:
   - pyarrow
   - scikit-learn
   - sqlalchemy
+  - xarray
   - zstd

ci/311.yaml

@@ -12,7 +12,6 @@ dependencies:
   - requests
   - scipy
   - shapely
-  - xarray
   # testing
   - codecov
   - matplotlib
@@ -28,4 +27,5 @@ dependencies:
   - pyarrow
   - scikit-learn
   - sqlalchemy
+  - xarray
   - zstd

ci/312-dev.yaml

@@ -27,13 +27,13 @@ dependencies:
   - pyproj
   - sqlalchemy
   - zstd
+  - xarray
   - pip
   - pip:
       # dev versions of packages
       - --pre --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --extra-index-url https://pypi.org/simple
       - pandas
       - scikit-learn
       - scipy
-      - xarray
       - git+https://github.com/geopandas/geopandas.git@main
       - git+https://github.com/shapely/shapely.git@main

ci/312-no-optional.yaml

@@ -11,7 +11,6 @@ dependencies:
   - platformdirs
   - requests
   - scipy
-  - xarray
   # testing
   - codecov
   - matplotlib

ci/312.yaml

@@ -12,7 +12,6 @@ dependencies:
   - requests
   - scipy
   - shapely
-  - xarray
   # testing
   - codecov
   - matplotlib
@@ -29,6 +28,7 @@ dependencies:
   - scikit-learn
   - sqlalchemy
   - zstd
+  - xarray
   # for docs build action (this env only)
   - mkdocs-jupyter
   - myst-parser

environment.yml

@@ -15,7 +15,6 @@ dependencies:
   - requests
   - scipy
   - shapely
-  - xarray
   # optional libpysal deps
   - geodatasets
   - joblib
@@ -25,4 +24,5 @@ dependencies:
   - pyarrow
   - scikit-learn
   - sqlalchemy
+  - xarray
   - zstd

libpysal/weights/tests/test_contiguity.py

@@ -1,17 +1,19 @@
+from warnings import warn
+
 import numpy as np
+import pytest
 
 from ... import examples as pysal_examples
 from ...io import geotable as pdio
 from ...io.fileio import FileIO as ps_open
 from .. import contiguity as c
-from .. import raster, util
+from .. import util
 from ..weights import W
 
 
 class ContiguityMixin:
     polygon_path = pysal_examples.get_path("columbus.shp")
     point_path = pysal_examples.get_path("baltim.shp")
-    da = raster.testDataArray((1, 4, 4), missing_vals=False)
     f = ps_open(polygon_path)  # our file handler
     polygons = f.read()  # our iterable
     f.seek(0)  # go back to head of file
@@ -25,6 +27,12 @@ class ContiguityMixin:
     known_wsp_da = dict()
     known_wi_da = None
     known_w_da = dict()
+    try:
+        from .. import raster
+        da = raster.testDataArray((1, 4, 4), missing_vals=False)
+    except ImportError as e:
+        warn('unable to import raster utils, likely from missing xarray')
+        da = None
 
     def setup_method(self):
         self.__dict__.update(
@@ -109,6 +117,8 @@ def test_from_geodataframe_order(self):
             assert w.id_order[:5] == expected
 
     def test_from_xarray(self):
+        pytest.importorskip("xarray")
+
         w = self.cls.from_xarray(self.da, sparse=False, n_jobs=-1)
         assert w[self.known_wi_da] == self.known_w_da
         ws = self.cls.from_xarray(self.da)

libpysal/weights/tests/test_raster.py

@@ -2,13 +2,12 @@
 import numpy as np
 import pandas as pd
 import pytest
-from xarray import DataArray
-
 from .. import raster
 
 
 class Testraster:
     def setup_method(self):
+        pytest.importorskip("xarray")
         self.da1 = raster.testDataArray()
         self.da2 = raster.testDataArray((1, 4, 4), missing_vals=False)
         self.da3 = self.da2.rename({"band": "layer", "x": "longitude", "y": "latitude"})
@@ -77,9 +76,10 @@ def test_da2_wsp(self):
         assert w2.index.tolist() == self.da2.to_series().index.tolist()
 
     def test_w2da(self):
+        xarray = pytest.importorskip("xarray")
         w2 = raster.da2W(self.da2, "rook", n_jobs=-1)
         da2 = raster.w2da(self.da2.data.flatten(), w2, self.da2.attrs, self.da2.coords)
-        da_compare = DataArray.equals(da2, self.da2)
+        da_compare = xarray.DataArray.equals(da2, self.da2)
         assert da_compare == True
 
     def test_wsp2da(self):

pyproject.toml

@@ -34,7 +34,6 @@ dependencies = [
     "requests>=2.27",
     "scipy>=1.8",
     "shapely>=2.0.1",
-    "xarray>=2022.3",
 ]
 
 [project.urls]
@@ -49,6 +48,7 @@ plus = [
     "pyarrow>=7.0",
     "scikit-learn>=1.1",
     "sqlalchemy>=2.0",
+    "xarray>=2022.3",
     "zstd",
 ]
 dev = [