Disallow scalar conversion for non-0D arrays

Author: vlad-perevezentsev

dpnp/dpnp_array.py

@@ -194,6 +194,7 @@ def __bytes__(self):
 
     def __complex__(self, /):
         """Convert a zero-dimensional array to a Python complex object."""
+        self._check_scalar_convertible()
         return self._array_obj.__complex__()
 
     def __contains__(self, value, /):
@@ -300,6 +301,7 @@ def __eq__(self, other, /):
 
     def __float__(self, /):
         """Convert a zero-dimensional array to a Python float object."""
+        self._check_scalar_convertible()
         return self._array_obj.__float__()
 
     def __floordiv__(self, other, /):
@@ -391,6 +393,7 @@ def __index__(self, /):
 
     def __int__(self, /):
         """Convert a zero-dimensional array to a Python int object."""
+        self._check_scalar_convertible()
         return self._array_obj.__int__()
 
     def __invert__(self, /):
@@ -608,6 +611,14 @@ def __xor__(self, other, /):
         r"""Return :math:`\text{self ^ value}`."""
         return dpnp.bitwise_xor(self, other)
 
+    def _check_scalar_convertible(self):
+        """Raise if array cannot be converted to a Python scalar."""
+        if self.ndim != 0:
+            raise TypeError(
+                "Only 0-dimensional dpnp.ndarray can be converted "
+                "to a Python scalar"
+            )
+
     @staticmethod
     def _create_from_usm_ndarray(usm_ary: dpt.usm_ndarray):
         """