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-rw-r--r--Lib/rfc822.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/rfc822.py b/Lib/rfc822.py
index 9ad2f8f..96ab21c 100644
--- a/Lib/rfc822.py
+++ b/Lib/rfc822.py
@@ -624,7 +624,7 @@ class AddrlistClass:
expectroute = 0
self.pos = self.pos + 1
self.gotonext()
- adlist = None
+ adlist = ""
while self.pos < len(self.field):
if expectroute:
self.getdomain()