Function get_signatures_using_jedi

src/ptpython/signatures.py:163–195

(
    document: Document, locals: dict[str, Any], globals: dict[str, Any]
)

def get_signatures_using_jedi(
    document: Document, locals: dict[str, Any], globals: dict[str, Any]
) -> list[Signature]:
    script = get_jedi_script_from_document(document, locals, globals)

    # Show signatures in help text.
    if not script:
        return []

    try:
        signatures = script.get_signatures()
    except ValueError:
        # e.g. in case of an invalid \\x escape.
        signatures = []
    except Exception:
        # Sometimes we still get an exception (TypeError), because
        # of probably bugs in jedi. We can silence them.
        # See: https://github.com/davidhalter/jedi/issues/492
        signatures = []
    else:
        # Try to access the params attribute just once. For Jedi
        # signatures containing the keyword-only argument star,
        # this will crash when retrieving it the first time with
        # AttributeError. Every following time it works.
        # See: https://github.com/jonathanslenders/ptpython/issues/47
        #      https://github.com/davidhalter/jedi/issues/598
        try:
            if signatures:
                signatures[0].params
        except AttributeError:
            pass

    return [Signature.from_jedi_signature(sig) for sig in signatures]


def get_signatures_using_eval(