jpayne@68: # Copyright (C) 2001-2006 Python Software Foundation
jpayne@68: # Author: Barry Warsaw
jpayne@68: # Contact: email-sig@python.org
jpayne@68: 
jpayne@68: """Base class for MIME specializations."""
jpayne@68: 
jpayne@68: __all__ = ['MIMEBase']
jpayne@68: 
jpayne@68: import email.policy
jpayne@68: 
jpayne@68: from email import message
jpayne@68: 
jpayne@68: 
jpayne@68: 
jpayne@68: class MIMEBase(message.Message):
jpayne@68:     """Base class for MIME specializations."""
jpayne@68: 
jpayne@68:     def __init__(self, _maintype, _subtype, *, policy=None, **_params):
jpayne@68:         """This constructor adds a Content-Type: and a MIME-Version: header.
jpayne@68: 
jpayne@68:         The Content-Type: header is taken from the _maintype and _subtype
jpayne@68:         arguments.  Additional parameters for this header are taken from the
jpayne@68:         keyword arguments.
jpayne@68:         """
jpayne@68:         if policy is None:
jpayne@68:             policy = email.policy.compat32
jpayne@68:         message.Message.__init__(self, policy=policy)
jpayne@68:         ctype = '%s/%s' % (_maintype, _subtype)
jpayne@68:         self.add_header('Content-Type', ctype, **_params)
jpayne@68:         self['MIME-Version'] = '1.0'