6. Exceptions

The exception module provides fand-specific exceptions. All exceptions raised by fand descend from FandError.

Certain errors have multiple parents. For instance, ShelfNotFoundError is a FandError, but also a ValueError.

6.1. Python API

6.1.1. Common fand errors

exception fand.exceptions.FandError

Bases: Exception

Base class for all exceptions in fand

exception fand.exceptions.TerminatingError

Bases: fand.exceptions.FandError

Daemon is terminating

6.1.2. Communication related errors

exception fand.exceptions.CommunicationError

Bases: fand.exceptions.FandError

Base class for communication related errors

exception fand.exceptions.SendReceiveError

Bases: fand.exceptions.CommunicationError, ConnectionError

Error while sending or receiving data

exception fand.exceptions.ListeningError

Bases: fand.exceptions.CommunicationError, ConnectionError

Error when listening to clients

exception fand.exceptions.ConnectionFailedError

Bases: fand.exceptions.CommunicationError, ConnectionError

Cannot connect to given address and port

exception fand.exceptions.CorruptedDataError

Bases: fand.exceptions.CommunicationError, ConnectionError

Invalid data received

exception fand.exceptions.FandConnectionResetError

Bases: fand.exceptions.CommunicationError, ConnectionResetError

Connection reset

exception fand.exceptions.FandTimeoutError

Bases: fand.exceptions.CommunicationError, TimeoutError

Connection timed out

exception fand.exceptions.UnpicklableError

Bases: fand.exceptions.CommunicationError, ValueError

Given value cannot be pickled

6.1.3. Shelf related errors

exception fand.exceptions.ShelfTemperatureBadValue

Bases: fand.exceptions.FandError, ValueError

Temperatures given for shelf are invalid

exception fand.exceptions.ShelfRpmBadValue

Bases: fand.exceptions.FandError, ValueError

RPM value is invalid

exception fand.exceptions.ShelfPwmBadValue

Bases: fand.exceptions.FandError, ValueError

PWM value is invalid

exception fand.exceptions.ShelfPwmExpireBadValue

Bases: fand.exceptions.FandError, ValueError

PWM override expiration date is invalid

exception fand.exceptions.ShelfNotFoundError

Bases: fand.exceptions.FandError, ValueError

Given shelf name is unknown

6.1.4. Server and clients specific errors

exception fand.exceptions.ServerNoConfigError

Bases: fand.exceptions.FandError, FileNotFoundError

No configuration file found

exception fand.exceptions.GpioError

Bases: fand.exceptions.FandError

Any GPIO related errors

exception fand.exceptions.FanctlActionBadValue

Bases: fand.exceptions.FandError, ValueError

No action found with this name and parameters