Fix #5433: latex: ImportError: cannot import name 'DEFAULT_SETTINGS'

CHANGES

@@ -19,6 +19,7 @@ Bugs fixed
 * #5418: Incorrect default path for sphinx-build -d/doctrees files
 * #5421: autodoc emits deprecation warning for :confval:`autodoc_default_flags`
 * #5422: lambda object causes PicklingError on storing environment
+* #5433: latex: ImportError: cannot import name 'DEFAULT_SETTINGS'
 
 Testing
 --------

sphinx/builders/latex/nodes.py

@@ -35,3 +35,12 @@ class math_reference(nodes.Inline, nodes.Referential, nodes.TextElement):
 class thebibliography(nodes.container):
     """A node for wrapping bibliographies."""
     pass
+
+
+HYPERLINK_SUPPORT_NODES = (
+    nodes.figure,
+    nodes.literal_block,
+    nodes.table,
+    nodes.section,
+    captioned_literal_block,
+)

sphinx/writers/latex.py

@@ -24,7 +24,6 @@ from six import itervalues, text_type
 
 from sphinx import addnodes
 from sphinx import highlighting
-from sphinx.builders.latex.nodes import captioned_literal_block, footnotetext
 from sphinx.deprecation import RemovedInSphinx30Warning
 from sphinx.errors import SphinxError
 from sphinx.locale import admonitionlabels, _, __
@@ -57,13 +56,6 @@ SHORTHANDOFF = r'''
 MAX_CITATION_LABEL_LENGTH = 8
 LATEXSECTIONNAMES = ["part", "chapter", "section", "subsection",
                      "subsubsection", "paragraph", "subparagraph"]
-HYPERLINK_SUPPORT_NODES = (
-    nodes.figure,
-    nodes.literal_block,
-    nodes.table,
-    nodes.section,
-    captioned_literal_block,
-)
 ENUMERATE_LIST_STYLE = defaultdict(lambda: r'\arabic',
                                    {
                                        'arabic': r'\arabic',
@@ -2615,3 +2607,7 @@ class LaTeXTranslator(nodes.NodeVisitor):
 #
 # refs: https://github.com/sphinx-doc/sphinx/issues/4889
 from sphinx.builders.latex.transforms import URI_SCHEMES, ShowUrlsTransform  # NOQA
+
+# FIXME: Workaround to avoid circular import
+# refs: https://github.com/sphinx-doc/sphinx/issues/5433
+from sphinx.builders.latex.nodes import HYPERLINK_SUPPORT_NODES, captioned_literal_block, footnotetext  # NOQA