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-rw-r--r--Lib/email/_header_value_parser.py3
1 files changed, 1 insertions, 2 deletions
diff --git a/Lib/email/_header_value_parser.py b/Lib/email/_header_value_parser.py
index 1924ed1..b596462 100644
--- a/Lib/email/_header_value_parser.py
+++ b/Lib/email/_header_value_parser.py
@@ -367,8 +367,7 @@ class TokenList(list):
yield (indent + ' !! invalid element in token '
'list: {!r}'.format(token))
else:
- for line in token._pp(indent+' '):
- yield line
+ yield from token._pp(indent+' ')
if self.defects:
extra = ' Defects: {}'.format(self.defects)
else: