keep_predicates

keep_predicates(triples: Iterable[TripleType], predicates: Reference | Collection[Reference], *, progress: bool = False) → Iterable[TripleType][source]

Keep triples whose predicate appear in the given references.

Parameters:

  • triples – An iterable of triples

  • predicates – A collection of references

  • progress – Should a progress bar be shown?

Returns:

A sub-iterable of triples whose predicate appear in the given references.

>>> from curies import Reference, Triple
>>> from curies.vocabulary import exact_match, subclass_of
>>> c1, c2, c3 = "DOID:0050577", "mesh:C562966", "DOID:225"
>>> r1, r2, r3 = (Reference.from_curie(c) for c in (c1, c2, c3))
>>> m1 = Triple.from_curies(c1, exact_match.curie, c2)
>>> m2 = Triple.from_curies(c2, exact_match.curie, c3)
>>> m3 = Triple.from_curies(c1, subclass_of.curie, c3)
>>> assert list(keep_predicates([m1, m2, m3], exact_match)) == [m1, m2]