Utility classes and functions ============================= .. automodule:: bluesky.utils Msg --- .. autosummary:: :nosignatures: :toctree: generated Msg Persistent metadata ------------------- To maintain a peristent set of meta-data between Python sessions we include a dictionary duck-type based on `zict.Func`. .. autosummary:: :nosignatures: :toctree: generated PersistentDict PersistentDict.directory Internal exceptions ------------------- We define a number of `Exception` sub-classes for internal signaling. .. autosummary:: :nosignatures: :toctree: generated RunEngineControlException RequestAbort RequestStop RunEngineInterrupted NoReplayAllowed IllegalMessageSequence FailedPause FailedStatus InvalidCommand PlanHalt RampFail Progress bars ------------- These are used by the RunEngine to display progress bars and are the clients of the :obj:`~ophyd.status.MoveStatus.watch` API .. autosummary:: :nosignatures: :toctree: generated ProgressBar ProgressBar.update ProgressBar.draw ProgressBar.clear ProgressBarManager During tasks ------------ These objects encapsulate what the RunEngine should do on its thread while waiting for the plan to complete in the background thread .. autosummary:: :nosignatures: :toctree: generated DuringTask DuringTask.block DefaultDuringTask