nrel.hive.util.tuple_ops

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Classes

TupleOps

class nrel.hive.util.tuple_ops.TupleOps

T

classmethod is_empty(xs: Tuple[T, Ellipsis]) → bool

classmethod non_empty(xs: Tuple[T, Ellipsis]) → bool

classmethod remove(xs: Tuple[T, Ellipsis], value: T) → Tuple[T, Ellipsis]

classmethod head(xs: Tuple[T, Ellipsis]) → T

classmethod head_optional(xs: Tuple[T, Ellipsis]) → T | None

classmethod last(xs: Tuple[T, Ellipsis]) → T

classmethod last_optional(xs: Tuple[T, Ellipsis]) → T | None

classmethod head_tail(tup: Tuple[T, Ellipsis]) → Tuple[T, Tuple[T, Ellipsis]]

classmethod tail(tup: Tuple[T, Ellipsis]) → Tuple[T, Ellipsis]

classmethod partition(predicate: Callable[[T], bool], t: Tuple[T, Ellipsis]) → Tuple[Tuple[T, Ellipsis], Tuple[T, Ellipsis]]

partitions a tuple into two tuples where members of the first tuple match the case where the provided predicate is True

taken from https://docs.python.org/3/library/itertools.html (but result tuples reversed for readability)

Parameters:

• predicate – tests membership in result tuples

• t – the source tuple

Returns:

classmethod flatten(nested_tuple: Tuple[Tuple[T, Ellipsis], Ellipsis]) → Tuple[T, Ellipsis]

flattens a tuple of tuples

taken from https://stackoverflow.com/a/10636583/11087167

Parameters:

nested_tuple – tuple to flatten

Returns:

flattened tuple

classmethod prepend(x: T, xs: Tuple[T, Ellipsis]) → Tuple[T, Ellipsis]

prepends an element to a tuple