#11731: simplify/enhance parser/generator API by introducing policy objects.
This new interface will also allow for future planned enhancements
in control over the parser/generator without requiring any additional
complexity in the parser/generator API.
Patch reviewed by Éric Araujo and Barry Warsaw.
diff --git a/Lib/email/errors.py b/Lib/email/errors.py
index d52a624..c2ea7d4 100644
--- a/Lib/email/errors.py
+++ b/Lib/email/errors.py
@@ -32,7 +32,7 @@
# These are parsing defects which the parser was able to work around.
-class MessageDefect:
+class MessageDefect(Exception):
"""Base class for a message defect."""
def __init__(self, line=None):