Fix instances of RUF052,RUF051

Author: inducer

loopy/schedule/tree.py

@@ -149,11 +149,11 @@ def add_node(self, node: NodeT, parent: NodeT) -> Tree[NodeT]:
 
         siblings = self._parent_to_children[parent]
 
-        _parent_to_children_mut = self._parent_to_children.mutate()
-        _parent_to_children_mut[parent] = (*siblings, node)
-        _parent_to_children_mut[node] = ()
+        parent_to_children_mut = self._parent_to_children.mutate()
+        parent_to_children_mut[parent] = (*siblings, node)
+        parent_to_children_mut[node] = ()
 
-        return Tree(_parent_to_children_mut.finish(),
+        return Tree(parent_to_children_mut.finish(),
                     self._child_to_parent.set(node, parent))
 
     def replace_node(self, node: NodeT, new_node: NodeT) -> Tree[NodeT]:
@@ -223,11 +223,11 @@ def move_node(self, node: NodeT, new_parent: NodeT | None) -> Tree[NodeT]:
         parents_new_children = tuple(frozenset(siblings) - frozenset([node]))
         new_parents_children = (*self.children(new_parent), node)
 
-        _parent_to_children_mut = self._parent_to_children.mutate()
-        _parent_to_children_mut[parent] = parents_new_children
-        _parent_to_children_mut[new_parent] = new_parents_children
+        parent_to_children_mut = self._parent_to_children.mutate()
+        parent_to_children_mut[parent] = parents_new_children
+        parent_to_children_mut[new_parent] = new_parents_children
 
-        return Tree(_parent_to_children_mut.finish(),
+        return Tree(parent_to_children_mut.finish(),
                     self._child_to_parent.set(node, new_parent))
 
     def __str__(self) -> str:

loopy/tools.py

@@ -305,10 +305,10 @@ def empty_aligned(shape, dtype, order="C", n=64):
 
     # We now need to know how to offset base_ary
     # so it is correctly aligned
-    _array_aligned_offset = (n-address_from_numpy(base_ary)) % n
+    array_aligned_offset = (n-address_from_numpy(base_ary)) % n
 
     array = np.frombuffer(
-            base_ary[_array_aligned_offset:_array_aligned_offset-n].data,
+            base_ary[array_aligned_offset:array_aligned_offset-n].data,
             dtype=dtype).reshape(shape, order=order)
 
     return array

loopy/transform/precompute.py

@@ -772,8 +772,7 @@ def precompute_for_single_kernel(
             if abm.non1_storage_axis_flags[i]:
                 non1_storage_axis_names.append(saxis)
             else:
-                if saxis in new_iname_to_tag:
-                    del new_iname_to_tag[saxis]
+                new_iname_to_tag.pop(saxis, None)
 
                 if saxis in preexisting_precompute_inames:
                     raise LoopyError("precompute axis %d (1-based) was "