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-rw-r--r--sphinx/builders/manpage.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/sphinx/builders/manpage.py b/sphinx/builders/manpage.py
index 29598615a..dfbf89862 100644
--- a/sphinx/builders/manpage.py
+++ b/sphinx/builders/manpage.py
@@ -11,7 +11,7 @@
from os import path
-import six
+from six import string_types
from docutils.io import FileOutput
from docutils.frontend import OptionParser
@@ -55,7 +55,7 @@ class ManualPageBuilder(Builder):
for info in self.config.man_pages:
docname, name, description, authors, section = info
- if isinstance(authors, six.string_types):
+ if isinstance(authors, string_types):
if authors:
authors = [authors]
else: