twisted.internet.error

Class	BindError	An error occurred binding to an interface
Class	CannotListenError	This gets raised by a call to startListening, when the object cannotstart listening.
Class	MulticastJoinError	An attempt to join a multicast group failed.
Class	MessageLengthError	Message is too long to send
Class	DNSLookupError	DNS lookup failed
Class	ConnectInProgressError	A connect operation was started and isn't done yet.
Class	ConnectError	An error occurred while connecting
Class	ConnectBindError	Couldn't bind
Class	UnknownHostError	Hostname couldn't be looked up
Class	NoRouteError	No route to host
Class	ConnectionRefusedError	Connection was refused by other side
Class	TCPTimedOutError	TCP connection timed out
Class	BadFileError	File used for UNIX socket is no good
Class	ServiceNameUnknownError	Service name given as port is unknown
Class	UserError	User aborted connection
Class	TimeoutError	User timeout caused connection failure
Class	SSLError	An SSL error occurred
Class	VerifyError	Could not verify something that was supposed to be signed.
Class	PeerVerifyError	The peer rejected our verify error.
Class	CertificateError	We did not find a certificate where we expected to find one.
Function	getConnectError	Given a socket exception, return connection error.
Class	ConnectionClosed	Connection was closed, whether cleanly or non-cleanly.
Class	ConnectionLost	Connection to the other side was lost in a non-clean fashion
Class	ConnectionAborted	Connection was aborted locally, using `twisted.internet.interfaces.ITCPTransport.abortConnection`.
Class	ConnectionDone	Connection was closed cleanly
Class	FileDescriptorOverrun	A mis-use of `IUNIXTransport.sendFileDescriptor` caused the connection to be closed.
Class	ConnectionFdescWentAway	Uh
Class	AlreadyCalled	Tried to cancel an already-called event
Class	AlreadyCancelled	Tried to cancel an already-cancelled event
Class	PotentialZombieWarning	Emitted when `IReactorProcess.spawnProcess` is called in a way which may result in termination of the created child process not being reported.
Class	ProcessDone	A process has ended without apparent errors
Class	ProcessTerminated	A process has ended with a probable error condition
Class	ProcessExitedAlready	The process has already exited and the operation requested can no longer be performed.
Class	NotConnectingError	The Connector was not connecting when it was asked to stop connecting
Class	NotListeningError	The Port was not listening when it was asked to stop listening
Class	ReactorNotRunning	Error raised when trying to stop a reactor which is not running.
Class	ReactorNotRestartable	Error raised when trying to run a reactor which was stopped.
Class	ReactorAlreadyRunning	Error raised when trying to start the reactor multiple times.
Class	ReactorAlreadyInstalledError	Could not install reactor because one is already installed.
Class	ConnectingCancelledError	An `Exception` that will be raised when an `IStreamClientEndpoint` is cancelled before it connects.
Class	NoProtocol	An `Exception` that will be raised when the factory given to a `IStreamClientEndpoint` returns `None` from `buildProtocol`.
Class	UnsupportedAddressFamily	An attempt was made to use a socket with an address family (eg AF_INET, AF_INET6, etc) which is not supported by the reactor.
Class	UnsupportedSocketType	An attempt was made to use a socket of a type (eg SOCK_STREAM, SOCK_DGRAM, etc) which is not supported by the reactor.
Class	AlreadyListened	An attempt was made to listen on a file descriptor which can only be listened on once.
Class	InvalidAddressError	An invalid address was specified (i.e. neither IPv4 or IPv6, or expected one and got the other).

twisted.internet.error module documentation

`twisted.internet.error` module documentation