This document describes the current stable version of Celery (4.4). For development docs, go here.

Source code for kombu.exceptions

from __future__ import absolute_import, unicode_literals

from socket import timeout as TimeoutError  # noqa

from amqp import ChannelError, ConnectionError, ResourceError

from kombu.five import python_2_unicode_compatible

__all__ = (
    'KombuError', 'OperationalError',
    'NotBoundError', 'MessageStateError', 'TimeoutError',
    'LimitExceeded', 'ConnectionLimitExceeded',
    'ChannelLimitExceeded', 'ConnectionError', 'ChannelError',
    'VersionMismatch', 'SerializerNotInstalled', 'ResourceError',
    'SerializationError', 'EncodeError', 'DecodeError', 'HttpError',

class KombuError(Exception):
    """Common subclass for all Kombu exceptions."""

[docs]class OperationalError(KombuError): """Recoverable message transport connection error."""
class SerializationError(KombuError): """Failed to serialize/deserialize content.""" class EncodeError(SerializationError): """Cannot encode object.""" class DecodeError(SerializationError): """Cannot decode object.""" class NotBoundError(KombuError): """Trying to call channel dependent method on unbound entity.""" class MessageStateError(KombuError): """The message has already been acknowledged.""" class LimitExceeded(KombuError): """Limit exceeded.""" class ConnectionLimitExceeded(LimitExceeded): """Maximum number of simultaneous connections exceeded.""" class ChannelLimitExceeded(LimitExceeded): """Maximum number of simultaneous channels exceeded.""" class VersionMismatch(KombuError): """Library dependency version mismatch.""" class SerializerNotInstalled(KombuError): """Support for the requested serialization type is not installed.""" class ContentDisallowed(SerializerNotInstalled): """Consumer does not allow this content-type.""" class InconsistencyError(ConnectionError): """Data or environment has been found to be inconsistent. Depending on the cause it may be possible to retry the operation. """ @python_2_unicode_compatible class HttpError(Exception): """HTTP Client Error.""" def __init__(self, code, message=None, response=None): self.code = code self.message = message self.response = response super(HttpError, self).__init__(code, message, response) def __str__(self): return 'HTTP {0.code}: {0.message}'.format(self)