Apply suggestions from code review

Author: dcherian

xarray/backends/scipy_.py

@@ -40,7 +40,7 @@
     from xarray.core.dataset import Dataset
 
 
-NUMPY_2_0 = module_available("numpy", minversion="2.0.0.dev0")
+HAS_NUMPY_2_0 = module_available("numpy", minversion="2.0.0.dev0")
 
 
 def _decode_string(s):
@@ -84,7 +84,7 @@ def __getitem__(self, key):
         # adapt handling of copy-kwarg to numpy 2.0
         # see https://github.com/numpy/numpy/issues/25916
         # and https://github.com/numpy/numpy/pull/25922
-        copy = None if NUMPY_2_0 and copy is False else copy
+        copy = None if HAS_NUMPY_2_0 and copy is False else copy
 
         return np.array(data, dtype=self.dtype, copy=copy)