5.3 Janus class Term

Class janus.Term() encapsulates a Prolog term. Similarly to the Python object reference (see py_is_object/1), the class allows Python to represent arbitrary Prolog data, typically with the intend to pass it back to Prolog.

Term janus.Term(...)

Instances are never created explicitly by the user. An instance is created by handling a term prolog(Term) tho the data conversion processes. As a result, we can do

?- py_call(janus:echo(prolog(hello(world))), Obj,
           [py_object(true)]).
Obj = <py_Term>(0x7f7a14512050).
?- py_call(print($Obj)).
hello(world)
Obj = <py_Term>(0x7f7a14512050).

Term janus.Term.__str__()

Return the output of print/1 on the term. This is what is used by the Python function print().

Term janus.Term.__repr__()

Return the output of write_canonical/1 on the term.