#27331: add policy keyword argument to all MIME subclasses.

Patch by Berker Peksag.

1 files changed, 6 insertions, 2 deletions

diff --git a/Lib/email/mime/base.py b/Lib/email/mime/base.py
index ac91925..1a3f9b5 100644
--- a/Lib/email/mime/base.py
+++ b/Lib/email/mime/base.py
@@ -6,6 +6,8 @@
 
 __all__ = ['MIMEBase']
 
+import email.policy
+
 from email import message
 
 
@@ -13,14 +15,16 @@ from email import message
 class MIMEBase(message.Message):
     """Base class for MIME specializations."""
 
-    def __init__(self, _maintype, _subtype, **_params):
+    def __init__(self, _maintype, _subtype, *, policy=None, **_params):
         """This constructor adds a Content-Type: and a MIME-Version: header.
 
         The Content-Type: header is taken from the _maintype and _subtype
         arguments.  Additional parameters for this header are taken from the
         keyword arguments.
         """
-        message.Message.__init__(self)
+        if policy is None:
+            policy = email.policy.compat32
+        message.Message.__init__(self, policy=policy)
         ctype = '%s/%s' % (_maintype, _subtype)
         self.add_header('Content-Type', ctype, **_params)
         self['MIME-Version'] = '1.0'