Fix examples and tests to pass with Numpy 2 (#459)

Cast Numpy floats and ints to Python floats so doctests can pass using
both Numpy <2 and >=2. Update test that was checking floats with regex.

verde/coordinates.py

@@ -71,7 +71,8 @@ def get_region(coordinates):
     --------
 
     >>> coords = grid_coordinates((0, 1, -10, -6), shape=(10, 10))
-    >>> print(get_region(coords))
+    >>> region = get_region(coords)
+    >>> print(tuple(float(c) for c in region))
     (0.0, 1.0, -10.0, -6.0)
 
     """

verde/projections.py

@@ -43,7 +43,8 @@ def project_region(region, projection):
 
     >>> def projection(x, y):
     ...     return (2*x, -1*y)
-    >>> project_region((3, 5, -9, -4), projection)
+    >>> region_proj = project_region((3, 5, -9, -4), projection)
+    >>> print(tuple(float(c) for c in region_proj))
     (6.0, 10.0, 4.0, 9.0)
 
     """

verde/tests/test_coordinates.py

@@ -75,28 +75,23 @@ def test_rolling_window_no_shape_or_spacing():
         rolling_window(coords, size=2)
 
 
-def test_rolling_window_oversized_window():
+@pytest.mark.parametrize(
+    "region",
+    [
+        (-5, -1, 6, 20),  # window larger than west-east
+        (-20, -1, 6, 10),  # window larger than south-north
+        (-5, -1, 6, 10),  # window larger than both dims
+    ],
+)
+def test_rolling_window_oversized_window(region):
     """
     Check if error is raised if size larger than region is passed
     """
     oversize = 5
-    regions = [
-        (-5, -1, 6, 20),  # window larger than west-east
-        (-20, -1, 6, 10),  # window larger than south-north
-        (-5, -1, 6, 10),  # window larger than both dims
-    ]
-    for region in regions:
-        coords = grid_coordinates(region, spacing=1)
-        # The expected error message with regex
-        # (the long expression intends to capture floats and ints)
-        float_regex = r"[+-]?([0-9]*[.])?[0-9]+"
-        err_msg = (
-            r"Window size '{}' is larger ".format(float_regex)
-            + r"than dimensions of the region "
-            + r"'\({0}, {0}, {0}, {0}\)'.".format(float_regex)
-        )
-        with pytest.raises(ValueError, match=err_msg):
-            rolling_window(coords, size=oversize, spacing=2)
+    coords = grid_coordinates(region, spacing=1)
+    err_msg = f"Window size '{oversize}' is larger than dimensions of the region "
+    with pytest.raises(ValueError, match=err_msg):
+        rolling_window(coords, size=oversize, spacing=2)
 
 
 def test_spacing_to_size():

verde/utils.py

@@ -196,18 +196,24 @@ def maxabs(*args, nan=True):
     Examples
     --------
 
-    >>> maxabs((1, -10, 25, 2, 3))
-    25
-    >>> maxabs((1, -10.5, 25, 2), (0.1, 100, -500), (-200, -300, -0.1, -499))
+    >>> result = maxabs((1, -10, 25, 2, 3))
+    >>> float(result)
+    25.0
+    >>> result = maxabs(
+    ...     (1, -10.5, 25, 2), (0.1, 100, -500), (-200, -300, -0.1, -499)
+    ... )
+    >>> float(result)
     500.0
 
     If the array contains NaNs, we'll use the ``nan`` version of of the numpy
     functions by default. You can turn this off through the *nan* argument.
 
     >>> import numpy as np
-    >>> maxabs((1, -10, 25, 2, 3, np.nan))
+    >>> result = maxabs((1, -10, 25, 2, 3, np.nan))
+    >>> float(result)
     25.0
-    >>> maxabs((1, -10, 25, 2, 3, np.nan), nan=False)
+    >>> result = maxabs((1, -10, 25, 2, 3, np.nan), nan=False)
+    >>> float(result)
     nan
 
     """