diff --git a/sphinx/transforms/i18n.py b/sphinx/transforms/i18n.py
index 3145379cb..d28376bec 100644
--- a/sphinx/transforms/i18n.py
+++ b/sphinx/transforms/i18n.py
@@ -298,7 +298,7 @@ class Locale(SphinxTransform):
             is_autofootnote_ref = NodeMatcher(nodes.footnote_reference, auto=Any)
             old_foot_refs: List[nodes.footnote_reference] = node.traverse(is_autofootnote_ref)
             new_foot_refs: List[nodes.footnote_reference] = patch.traverse(is_autofootnote_ref)
-            if len(old_foot_refs) != len(new_foot_refs):
+            if len(list(old_foot_refs)) != len(list(new_foot_refs)):
                 old_foot_ref_rawsources = [ref.rawsource for ref in old_foot_refs]
                 new_foot_ref_rawsources = [ref.rawsource for ref in new_foot_refs]
                 logger.warning(__('inconsistent footnote references in translated message.' +
@@ -341,7 +341,7 @@ class Locale(SphinxTransform):
             is_refnamed_ref = NodeMatcher(nodes.reference, refname=Any)
             old_refs: List[nodes.reference] = node.traverse(is_refnamed_ref)
             new_refs: List[nodes.reference] = patch.traverse(is_refnamed_ref)
-            if len(old_refs) != len(new_refs):
+            if len(list(old_refs)) != len(list(new_refs)):
                 old_ref_rawsources = [ref.rawsource for ref in old_refs]
                 new_ref_rawsources = [ref.rawsource for ref in new_refs]
                 logger.warning(__('inconsistent references in translated message.' +
@@ -369,7 +369,7 @@ class Locale(SphinxTransform):
             old_foot_refs = node.traverse(is_refnamed_footnote_ref)
             new_foot_refs = patch.traverse(is_refnamed_footnote_ref)
             refname_ids_map: Dict[str, List[str]] = {}
-            if len(old_foot_refs) != len(new_foot_refs):
+            if len(list(old_foot_refs)) != len(list(new_foot_refs)):
                 old_foot_ref_rawsources = [ref.rawsource for ref in old_foot_refs]
                 new_foot_ref_rawsources = [ref.rawsource for ref in new_foot_refs]
                 logger.warning(__('inconsistent footnote references in translated message.' +
@@ -388,7 +388,7 @@ class Locale(SphinxTransform):
             old_cite_refs: List[nodes.citation_reference] = node.traverse(is_citation_ref)
             new_cite_refs: List[nodes.citation_reference] = patch.traverse(is_citation_ref)
             refname_ids_map = {}
-            if len(old_cite_refs) != len(new_cite_refs):
+            if len(list(old_cite_refs)) != len(list(new_cite_refs)):
                 old_cite_ref_rawsources = [ref.rawsource for ref in old_cite_refs]
                 new_cite_ref_rawsources = [ref.rawsource for ref in new_cite_refs]
                 logger.warning(__('inconsistent citation references in translated message.' +
@@ -408,7 +408,7 @@ class Locale(SphinxTransform):
             old_xrefs = node.traverse(addnodes.pending_xref)
             new_xrefs = patch.traverse(addnodes.pending_xref)
             xref_reftarget_map = {}
-            if len(old_xrefs) != len(new_xrefs):
+            if len(list(old_xrefs)) != len(list(new_xrefs)):
                 old_xref_rawsources = [xref.rawsource for xref in old_xrefs]
                 new_xref_rawsources = [xref.rawsource for xref in new_xrefs]
                 logger.warning(__('inconsistent term references in translated message.' +
diff --git a/sphinx/writers/latex.py b/sphinx/writers/latex.py
index a1b1defd7..25c82940c 100644
--- a/sphinx/writers/latex.py
+++ b/sphinx/writers/latex.py
@@ -1011,7 +1011,7 @@ class LaTeXTranslator(SphinxTranslator):
             context = (r'\par' + CR + r'\vskip-\baselineskip'
                        r'\vbox{\hbox{\strut}}\end{varwidth}%' + CR + context)
             self.needs_linetrimming = 1
-        if len(node.traverse(nodes.paragraph)) >= 2:
+        if len(list(node.traverse(nodes.paragraph))) >= 2:
             self.table.has_oldproblematic = True
         if isinstance(node.parent.parent, nodes.thead) or (cell.col in self.table.stubs):
             if len(node) == 1 and isinstance(node[0], nodes.paragraph) and node.astext() == '':
diff --git a/sphinx/writers/text.py b/sphinx/writers/text.py
index bd0ffa063..ba310e072 100644
--- a/sphinx/writers/text.py
+++ b/sphinx/writers/text.py
@@ -850,7 +850,7 @@ class TextTranslator(SphinxTranslator):
             self.end_state(first='%s. ' % self.list_counter[-1])
 
     def visit_definition_list_item(self, node: Element) -> None:
-        self._classifier_count_in_li = len(node.traverse(nodes.classifier))
+        self._classifier_count_in_li = len(list(node.traverse(nodes.classifier)))
 
     def depart_definition_list_item(self, node: Element) -> None:
         pass
diff --git a/tests/test_util_nodes.py b/tests/test_util_nodes.py
index cb2ae70a8..421930cf5 100644
--- a/tests/test_util_nodes.py
+++ b/tests/test_util_nodes.py
@@ -60,31 +60,31 @@ def test_NodeMatcher():
 
     # search by node class
     matcher = NodeMatcher(nodes.paragraph)
-    assert len(doctree.traverse(matcher)) == 3
+    assert len(list(doctree.traverse(matcher))) == 3
 
     # search by multiple node classes
     matcher = NodeMatcher(nodes.paragraph, nodes.literal_block)
-    assert len(doctree.traverse(matcher)) == 4
+    assert len(list(doctree.traverse(matcher))) == 4
 
     # search by node attribute
     matcher = NodeMatcher(block=1)
-    assert len(doctree.traverse(matcher)) == 1
+    assert len(list(doctree.traverse(matcher))) == 1
 
     # search by node attribute (Any)
     matcher = NodeMatcher(block=Any)
-    assert len(doctree.traverse(matcher)) == 3
+    assert len(list(doctree.traverse(matcher))) == 3
 
     # search by both class and attribute
     matcher = NodeMatcher(nodes.paragraph, block=Any)
-    assert len(doctree.traverse(matcher)) == 2
+    assert len(list(doctree.traverse(matcher))) == 2
 
     # mismatched
     matcher = NodeMatcher(nodes.title)
-    assert len(doctree.traverse(matcher)) == 0
+    assert len(list(doctree.traverse(matcher))) == 0
 
     # search with Any does not match to Text node
     matcher = NodeMatcher(blah=Any)
-    assert len(doctree.traverse(matcher)) == 0
+    assert len(list(doctree.traverse(matcher))) == 0
 
 
 @pytest.mark.parametrize(