Exceptions — Python 3.9.22 documentation (original) (raw)

Source code: Lib/asyncio/exceptions.py

exception asyncio. TimeoutError¶

The operation has exceeded the given deadline.

Important

This exception is different from the builtin TimeoutErrorexception.

exception asyncio. 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.

exception asyncio. 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.

exception asyncio. SendfileNotAvailableError¶

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

A subclass of RuntimeError.

exception asyncio. 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.

exception asyncio. 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.