1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/email/utils.py b/Lib/email/utils.py
index ac13f49..a74db42 100644
--- a/Lib/email/utils.py
+++ b/Lib/email/utils.py
@@ -211,6 +211,12 @@ def parsedate_tz(data):
 
 
 def parseaddr(addr):
+    """
+    Parse addr into its constituent realname and email address parts.
+    
+    Return a tuple of realname and email address, unless the parse fails, in
+    which case return a 2-tuple of ('', '').
+    """
     addrs = _AddressList(addr).addresslist
     if not addrs:
         return '', ''