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Source.Python/addons/source-python/Python3/email/errors.py at master · waldotf/Source.Python · GitHub
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Source.Python
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addons
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source-python
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email
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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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