Method from_file

pyvrp/solve.py:113–136

Loads the solver parameters from a TOML file.

(cls, loc: str | pathlib.Path)

    @classmethod
    def from_file(cls, loc: str | pathlib.Path):
        """
        Loads the solver parameters from a TOML file.
        """
        with open(loc, "rb") as fh:
            data = tomllib.load(fh)

        node_ops = NODE_OPERATORS
        if "node_ops" in data:
            node_ops = [getattr(pyvrp.search, op) for op in data["node_ops"]]

        route_ops = ROUTE_OPERATORS
        if "route_ops" in data:
            route_ops = [getattr(pyvrp.search, op) for op in data["route_ops"]]

        return cls(
            IteratedLocalSearchParams(**data.get("ils", {})),
            PenaltyParams(**data.get("penalty", {})),
            NeighbourhoodParams(**data.get("neighbourhood", {})),
            node_ops,
            route_ops,
            data.get("display_interval", 5.0),
            PerturbationParams(**data.get("perturbation", {})),
        )


def solve(