Added comment, fixed black madness

Author: oleksandr-pavlyk

dpctl/_memory.pyx

@@ -121,7 +121,12 @@ cdef class _BufferData:
         if isinstance(ary_syclobj, dpctl.SyclQueue):
             buf.queue = <SyclQueue>ary_syclobj
         else:
-            # FIXME: need a way to construct a queue from 
+            # FIXME: need a way to construct a queue from
+            # context and device, which can be obtaine from the
+            # pointer and the context.
+            # cdef SyclDevice dev = DPPLget_pointer_device(arr_data_ptr, <SyclContext> ary_syclobj)
+            # cdef SyclQueue new_queue = SyclQueue._create_from_dev_context(dev, <SyclContext> ary_syclobj)
+            # buf.queue = new_queue
             buf.queue = get_current_queue()
 
         return buf

dpctl/tests/test_sycl_usm.py

@@ -138,12 +138,12 @@ def test_pickling(self):
         self.assertEqual(
             mobj.tobytes(),
             mobj_reconstructed.tobytes(),
-            "Pickling should preserve buffer content"
+            "Pickling should preserve buffer content",
         )
         self.assertNotEqual(
             mobj._pointer,
             mobj_reconstructed._pointer,
-            "Pickling/unpickling changes pointer"
+            "Pickling/unpickling changes pointer",
         )