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- """ Task States
- .. data:: PENDING
- Task is waiting for execution or unknown.
- .. data:: STARTED
- Task has been started.
- .. data:: SUCCESS
- Task has been successfully executed.
- .. data:: FAILURE
- Task execution resulted in failure.
- .. data:: RETRY
- Task is being retried.
- .. data:: REVOKED
- Task has been revoked.
- """
- PENDING = "PENDING"
- STARTED = "STARTED"
- SUCCESS = "SUCCESS"
- FAILURE = "FAILURE"
- REVOKED = "REVOKED"
- RETRY = "RETRY"
- """
- .. data:: READY_STATES
- Set of states meaning the task result is ready (has been executed).
- .. data:: UNREADY_STATES
- Set of states meaning the task result is not ready (has not been executed).
- .. data:: EXCEPTION_STATES
- Set of states meaning the task returned an exception.
- .. data:: PROPAGATE_STATES
- Set of exception states that should propagate exceptions to the user.
- .. data:: ALL_STATES
- Set of all possible states.
- """
- READY_STATES = frozenset([SUCCESS, FAILURE, REVOKED])
- UNREADY_STATES = frozenset([PENDING, STARTED, RETRY])
- EXCEPTION_STATES = frozenset([RETRY, FAILURE, REVOKED])
- PROPAGATE_STATES = frozenset([FAILURE, REVOKED])
- ALL_STATES = frozenset([PENDING, STARTED, SUCCESS, FAILURE, RETRY, REVOKED])
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