# Copyright (C) 2001-2006 Python Software Foundation # Author: Barry Warsaw # Contact: email-sig@python.org """Base class for MIME specializations.""" __all__ = ['MIMEBase'] import email.policy from email import message  class MIMEBase(message.Message): """Base class for MIME specializations.""" 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. """ 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'