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-rw-r--r--sphinx/util/stemmer/porter.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/sphinx/util/stemmer/porter.py b/sphinx/util/stemmer/porter.py
index 4f2f1a089..964b09a12 100644
--- a/sphinx/util/stemmer/porter.py
+++ b/sphinx/util/stemmer/porter.py
@@ -28,6 +28,10 @@
:license: Public Domain ("can be used free of charge for any purpose").
"""
+if False:
+ # For type annotation
+ from sphinx.util.typing import unicode # NOQA
+
class PorterStemmer: