Briefly (from the NEWS file):
- Updates for the email package:
+ All deprecated APIs that in email 2.x issued warnings have been removed:
_encoder argument to the MIMEText constructor, Message.add_payload(),
Utils.dump_address_pair(), Utils.decode(), Utils.encode()
+ New deprecations: Generator.__call__(), Message.get_type(),
Message.get_main_type(), Message.get_subtype(), the 'strict' argument to
the Parser constructor. These will be removed in email 3.1.
+ Support for Python earlier than 2.3 has been removed (see PEP 291).
+ All defect classes have been renamed to end in 'Defect'.
+ Some FeedParser fixes; also a MultipartInvariantViolationDefect will be
added to messages that claim to be multipart but really aren't.
+ Updates to documentation.
subclasses.
MIMENonMultipart: Base class for non-multipart/* content type subclass
specializations, e.g. image/gif. This class overrides attach() which
raises an exception, since it makes no sense to attach a subpart to
e.g. an image/gif message.
MIMEMultipart: Base class for multipart/* content type subclass
specializations, e.g. multipart/mixed. Does little more than provide
a useful constructor.