remove list_of_nodes in favor of similar applys_between

Author: Dhruvanshu-Joshi

pytensor/graph/basic.py

@@ -1789,38 +1789,6 @@ def view_roots(node: Variable) -> list[Variable]:
         return [node]
 
 
-def list_of_nodes(
-    inputs: Collection[Variable], outputs: Iterable[Variable]
-) -> list[Apply]:
-    r"""Return the `Apply` nodes of the graph between `inputs` and `outputs`.
-
-    Parameters
-    ----------
-    inputs : list of Variable
-        Input `Variable`\s.
-    outputs : list of Variable
-        Output `Variable`\s.
-
-    """
-
-    def expand(o: Apply) -> list[Apply]:
-        return [
-            inp.owner
-            for inp in o.inputs
-            if inp.owner and not any(i in inp.owner.outputs for i in inputs)
-        ]
-
-    return list(
-        cast(
-            Iterable[Apply],
-            walk(
-                [o.owner for o in outputs if o.owner],
-                expand,
-            ),
-        )
-    )
-
-
 def apply_depends_on(apply: Apply, depends_on: Apply | Collection[Apply]) -> bool:
     """Determine if any `depends_on` is in the graph given by ``apply``.
 

pytensor/scalar/basic.py

@@ -24,7 +24,7 @@
 from pytensor import printing
 from pytensor.configdefaults import config
 from pytensor.gradient import DisconnectedType, grad_undefined
-from pytensor.graph.basic import Apply, Constant, Variable, clone, list_of_nodes
+from pytensor.graph.basic import Apply, Constant, Variable, applys_between, clone
 from pytensor.graph.fg import FunctionGraph
 from pytensor.graph.op import HasInnerGraph
 from pytensor.graph.rewriting.basic import MergeOptimizer
@@ -4125,7 +4125,7 @@ def c_support_code_apply(self, node, name):
 
     def prepare_node(self, node, storage_map, compute_map, impl):
         if impl not in self.prepare_node_called:
-            for n in list_of_nodes(self.inputs, self.outputs):
+            for n in applys_between(self.inputs, self.outputs):
                 n.op.prepare_node(n, None, None, impl)
             self.prepare_node_called.add(impl)
 

tests/graph/test_basic.py

@@ -23,7 +23,6 @@
     get_var_by_name,
     graph_inputs,
     io_toposort,
-    list_of_nodes,
     orphans_between,
     truncated_graph_inputs,
     variable_depends_on,
@@ -567,17 +566,6 @@ def test_ops():
     assert res_list == [o3.owner, o2.owner, o1.owner]
 
 
-def test_list_of_nodes():
-    r1, r2, r3 = MyVariable(1), MyVariable(2), MyVariable(3)
-    o1 = MyOp(r1, r2)
-    o1.name = "o1"
-    o2 = MyOp(r3, o1)
-    o2.name = "o2"
-
-    res = list_of_nodes([r1, r2], [o2])
-    assert res == [o2.owner, o1.owner]
-
-
 def test_apply_depends_on():
     r1, r2, r3 = MyVariable(1), MyVariable(2), MyVariable(3)
     o1 = MyOp(r1, r2)