COMPAT: error massage for py310 (pandas-dev#41228)

Author: fangchenli

pandas/tests/arrays/test_datetimelike.py

@@ -1150,7 +1150,7 @@ def test_array_interface(self, arr1d):
         tm.assert_numpy_array_equal(result, arr.asi8)
 
         # to other dtypes
-        msg = r"float\(\) argument must be a string or a number, not 'Period'"
+        msg = r"float\(\) argument must be a string or a( real)? number, not 'Period'"
         with pytest.raises(TypeError, match=msg):
             np.asarray(arr, dtype="float64")