ref: 5c5ffea92c87de9ccdde90dbca6fc345137ef9a6
dir: /sys/lib/python/email/errors.py/
# 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."""