# Copyright (C) 2001-2006 Python Software Foundation # Author: Barry Warsaw # Contact: email-sig@python.org """email package exception classes."""  class MessageError(Exception): """Base class for errors in the email package.""" class MessageParseError(MessageError): """Base class for message parsing errors.""" class HeaderParseError(MessageParseError): """Error while parsing headers.""" class BoundaryError(MessageParseError): """Couldn't find terminating boundary.""" class MultipartConversionError(MessageError, TypeError): """Conversion to a multipart is prohibited.""" class CharsetError(MessageError): """An illegal charset was given."""  # These are parsing defects which the parser was able to work around. class MessageDefect: """Base class for a message defect.""" def __init__(self, line=None): self.line = line class NoBoundaryInMultipartDefect(MessageDefect): """A message claimed to be a multipart but had no boundary parameter.""" class StartBoundaryNotFoundDefect(MessageDefect): """The claimed start boundary was never found.""" class FirstHeaderLineIsContinuationDefect(MessageDefect): """A message had a continuation line as its first header line.""" class MisplacedEnvelopeHeaderDefect(MessageDefect): """A 'Unix-from' header was found in the middle of a header block.""" class MalformedHeaderDefect(MessageDefect): """Found a header that was missing a colon, or was otherwise malformed.""" class MultipartInvariantViolationDefect(MessageDefect): """A message claimed to be a multipart but no subparts were found."""