1 # Copyright (C) 2001-2006 Python Software Foundation
2 # Author: Barry Warsaw
3 # Contact: email-sig@python.org
4 
5 """email package exception classes."""
6 
7 
8 
9 class MessageError(Exception):
10     """Base class for errors in the email package."""
11 
12 
13 class MessageParseError(MessageError):
14     """Base class for message parsing errors."""
15 
16 
17 class HeaderParseError(MessageParseError):
18     """Error while parsing headers."""
19 
20 
21 class BoundaryError(MessageParseError):
22     """Couldn't find terminating boundary."""
23 
24 
25 class MultipartConversionError(MessageError, TypeError):
26     """Conversion to a multipart is prohibited."""
27 
28 
29 class CharsetError(MessageError):
30     """An illegal charset was given."""
31 
32 
33 
34 # These are parsing defects which the parser was able to work around.
35 class MessageDefect:
36     """Base class for a message defect."""
37 
38     def __init__(self, line=None):
39         self.line = line
40 
41 class NoBoundaryInMultipartDefect(MessageDefect):
42     """A message claimed to be a multipart but had no boundary parameter."""
43 
44 class StartBoundaryNotFoundDefect(MessageDefect):
45     """The claimed start boundary was never found."""
46 
47 class FirstHeaderLineIsContinuationDefect(MessageDefect):
48     """A message had a continuation line as its first header line."""
49 
50 class MisplacedEnvelopeHeaderDefect(MessageDefect):
51     """A 'Unix-from' header was found in the middle of a header block."""
52 
53 class MalformedHeaderDefect(MessageDefect):
54     """Found a header that was missing a colon, or was otherwise malformed."""
55 
56 class MultipartInvariantViolationDefect(MessageDefect):
57     """A message claimed to be a multipart but no subparts were found."""