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//opt/alt/python312/lib64/python3.12/email/errors.py

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# 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."""

class HeaderWriteError(MessageError):
    """Error while writing headers."""

# These are parsing defects which the parser was able to work around.
class MessageDefect(ValueError):
    """Base class for a message defect."""

def __init__(self, line=None):
        if line is not None:
            super().__init__(line)
        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 CloseBoundaryNotFoundDefect(MessageDefect):
    """A start boundary was found, but not the corresponding close boundary."""

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 MissingHeaderBodySeparatorDefect(MessageDefect):
    """Found line with no leading whitespace and no colon before blank line."""
# XXX: backward compatibility, just in case (it was never emitted).
MalformedHeaderDefect = MissingHeaderBodySeparatorDefect

class MultipartInvariantViolationDefect(MessageDefect):
    """A message claimed to be a multipart but no subparts were found."""

class InvalidMultipartContentTransferEncodingDefect(MessageDefect):
    """An invalid content transfer encoding was set on the multipart itself."""

class UndecodableBytesDefect(MessageDefect):
    """Header contained bytes that could not be decoded"""

class InvalidBase64PaddingDefect(MessageDefect):
    """base64 encoded sequence had an incorrect length"""

class InvalidBase64CharactersDefect(MessageDefect):
    """base64 encoded sequence had characters not in base64 alphabet"""

class InvalidBase64LengthDefect(MessageDefect):
    """base64 encoded sequence had invalid length (1 mod 4)"""

# These errors are specific to header parsing.

class HeaderDefect(MessageDefect):
    """Base class for a header defect."""

def __init__(self, *args, **kw):
        super().__init__(*args, **kw)

class InvalidHeaderDefect(HeaderDefect):
    """Header is not valid, message gives details."""

class HeaderMissingRequiredValue(HeaderDefect):
    """A header that must have a value had none"""

class NonPrintableDefect(HeaderDefect):
    """ASCII characters outside the ascii-printable range found"""

def __init__(self, non_printables):
        super().__init__(non_printables)
        self.non_printables = non_printables

def __str__(self):
        return ("the following ASCII non-printables found in header: "
            "{}".format(self.non_printables))

class ObsoleteHeaderDefect(HeaderDefect):
    """Header uses syntax declared obsolete by RFC 5322"""

class NonASCIILocalPartDefect(HeaderDefect):
    """local_part contains non-ASCII characters"""
    # This defect only occurs during unicode parsing, not when
    # parsing messages decoded from binary.

class InvalidDateDefect(HeaderDefect):
    """Header has unparsable or invalid date"""

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architecture.rst	9.34 KB	lrw-r--r--	2025-10-09 11:07:00	Edit Download recursive recursive
base64mime.py	3.47 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
charset.py	16.66 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
contentmanager.py	10.34 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
encoders.py	1.74 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
errors.py	3.72 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
feedparser.py	22.26 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
generator.py	20.33 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
header.py	23.53 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
headerregistry.py	20.33 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
iterators.py	2.08 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
message.py	47.08 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
parser.py	4.86 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
policy.py	10.37 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
quoprimime.py	9.63 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
utils.py	15.69 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
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_policybase.py	15.17 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive
__init__.py	1.72 KB	lrw-r--r--	2026-01-08 18:12:44	Edit Download recursive recursive

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