replace numpy.core.defchararray.add with numpy.strings.add

xarray/tests/test_formatting.py

@@ -6,7 +6,6 @@
 import numpy as np
 import pandas as pd
 import pytest
-from numpy.core import defchararray
 
 import xarray as xr
 from xarray.core import formatting
@@ -770,9 +769,9 @@ def test_repr_file_collapsed(tmp_path) -> None:
 )
 def test__mapping_repr(display_max_rows, n_vars, n_attr) -> None:
     long_name = "long_name"
-    a = defchararray.add(long_name, np.arange(0, n_vars).astype(str))
-    b = defchararray.add("attr_", np.arange(0, n_attr).astype(str))
-    c = defchararray.add("coord", np.arange(0, n_vars).astype(str))
+    a = np.strings.add(long_name, np.arange(0, n_vars).astype(str))
+    b = np.strings.add("attr_", np.arange(0, n_attr).astype(str))
+    c = np.strings.add("coord", np.arange(0, n_vars).astype(str))
     attrs = {k: 2 for k in b}
     coords = {_c: np.array([0, 1], dtype=np.uint64) for _c in c}
     data_vars = dict()