Function p

Lib/inspect.py:2239–2247

(name_node, default_node, default=empty)

            raise ValueError

    def p(name_node, default_node, default=empty):
        name = parse_name(name_node)
        if default_node and default_node is not _empty:
            try:
                default_node = RewriteSymbolics().visit(default_node)
                default = ast.literal_eval(default_node)
            except ValueError:
                raise ValueError("{!r} builtin has invalid signature".format(obj)) from None
        parameters.append(Parameter(name, kind, default=default, annotation=empty))

    # non-keyword-only parameters
    total_non_kw_args = len(f.args.posonlyargs) + len(f.args.args)