bluesky.plans.count#

bluesky.plans.count(detectors: Sequence[Readable], num: int | None = 1, delay: float | Iterable[float] = 0.0, *, per_shot: Callable[[Sequence[Readable], Callable[[Sequence[Readable]], Generator[Msg, Any, Mapping[str, Reading]]] | None], Generator[Msg, Any, P]] | None = None, md: dict[str, Any] | None = None) → Generator[Msg, Any, str][source]#

Take one or more readings from detectors.

Parameters:
detectorslist or tuple

list of ‘readable’ objects

numinteger, optional

number of readings to take; default is 1

If None, capture data until canceled

delayiterable or scalar, optional

Time delay in seconds between successive readings; default is 0.

per_shotcallable, optional

hook for customizing action of inner loop (messages per step) Expected signature

def f(detectors: Iterable[OphydObj]) -> Generator[Msg]:
    ...
mddict, optional

metadata

Notes

If delay is an iterable, it must have at least num - 1 entries or the plan will raise a ValueError during iteration.