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-rw-r--r--sphinx/pycode/pgen2/pgen.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sphinx/pycode/pgen2/pgen.py b/sphinx/pycode/pgen2/pgen.py
index 3c37b1399..f405261ab 100644
--- a/sphinx/pycode/pgen2/pgen.py
+++ b/sphinx/pycode/pgen2/pgen.py
@@ -335,7 +335,7 @@ class ParserGenerator(object):
try:
msg = msg % args
except:
- msg = " ".join([msg] + map(str, args))
+ msg = " ".join([msg] + [str(x) for x in args])
raise SyntaxError(msg, (self.filename, self.end[0],
self.end[1], self.line))