ensure_iterable#

lsst.utils.iteration.ensure_iterable(a: Any) → Iterable[Any]#

Ensure that the input is iterable.

There are multiple cases, when the input is:

  • iterable, but not a str or Mapping -> iterate over elements (e.g. [i for i in a])

  • a str -> return single element iterable (e.g. [a])

  • a Mapping -> return single element iterable

  • not iterable -> return single element iterable (e.g. [a]).

Parameters#

aiterable or str or not iterable

Argument to be converted to an iterable.

Returns#

iIterable

Iterable version of the input value.