Add __iter__() method

Author: antonwolfy

dpnp/dpnp_array.py

@@ -434,7 +434,11 @@ def __isub__(self, other):
         dpnp.subtract(self, other, out=self)
         return self
 
-    # '__iter__',
+    def __iter__(self):
+        """Return ``iter(self)``."""
+        if self.ndim == 0:
+            raise TypeError("iteration over a 0-d array")
+        return (self[i] for i in range(self.shape[0]))
 
     def __itruediv__(self, other):
         """Return ``self/=value``."""