Exceptions

Python documentation

Source code:

Lib/asyncio/exceptions.py

———
exceptionasyncio.TimeoutError

A deprecated alias of TimeoutError, raised when the operation has exceeded the given deadline.

Changed in version 3.11: This class was made an alias of TimeoutError.

exceptionasyncio.CancelledError

The operation has been cancelled.

This exception can be caught to perform custom operations when asyncio Tasks are cancelled. In almost all situations the exception must be re-raised.

Changed in version 3.8: CancelledError is now a subclass of

BaseException

rather than

Exception

.

exceptionasyncio.InvalidStateError

Invalid internal state of

Task

or

Future

.

Can be raised in situations like setting a result value for a Future object that already has a result value set.

exceptionasyncio.SendfileNotAvailableError

The “sendfile” syscall is not available for the given socket or file type.

A subclass of

RuntimeError

.

exceptionasyncio.IncompleteReadError

The requested read operation did not complete fully.

Raised by the

asyncio stream APIs

.

This exception is a subclass of

EOFError

.

expected

The total number (

int

) of expected bytes.

partial

A string of

bytes

read before the end of stream was reached.

exceptionasyncio.LimitOverrunError

Reached the buffer size limit while looking for a separator.

Raised by the

asyncio stream APIs

.

consumed

The total number of to be consumed bytes.