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-rw-r--r--sphinx/ext/intersphinx.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/sphinx/ext/intersphinx.py b/sphinx/ext/intersphinx.py
index 5a16f21d3..e144adf84 100644
--- a/sphinx/ext/intersphinx.py
+++ b/sphinx/ext/intersphinx.py
@@ -35,7 +35,7 @@ from urllib.parse import urlsplit, urlunsplit
from docutils import nodes
from docutils.utils import relative_path
-from six import string_types, text_type
+from six import text_type
import sphinx
from sphinx.builders.html import INVENTORY_FILENAME
@@ -217,7 +217,7 @@ def load_mappings(app):
if isinstance(value, (list, tuple)):
# new format
name, (uri, inv) = key, value
- if not isinstance(name, string_types):
+ if not isinstance(name, str):
logger.warning(__('intersphinx identifier %r is not string. Ignored'), name)
continue
else: