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File: 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(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"""

# 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.

Name	Size	Permissions	Options
mime	--	rwxr-xr-x	Rename \| Chmod \| Delete
__pycache__	--	rwxr-xr-x	Rename \| Chmod \| Delete
architecture.rst	9561 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
base64mime.py	3558 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
charset.py	17151 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
contentmanager.py	10669 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
encoders.py	1786 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
errors.py	3535 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
feedparser.py	22920 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
generator.py	19898 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
header.py	24100 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
headerregistry.py	20164 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
iterators.py	2135 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
message.py	45774 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
parser.py	5043 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
policy.py	10299 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
quoprimime.py	9859 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
utils.py	13688 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
_encoded_words.py	7914 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
_header_value_parser.py	105295 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
_parseaddr.py	17604 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
_policybase.py	14897 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete
__init__.py	1766 bytes	rw-r--r--	Edit \| Rename \| Chmod \| Delete