Method _sample_from_island_random

data/database.py:1488–1517

Sample a completely random parent from a specific island (uniform distribution) Args: island_id: The island to sample from Returns: Parent program selected uniformly at random

(self, island_id: int)

        return parent

    def _sample_from_island_random(self, island_id: int) -> Program:
        """
        Sample a completely random parent from a specific island (uniform distribution)

        Args:
            island_id: The island to sample from

        Returns:
            Parent program selected uniformly at random
        """
        island_id = island_id % len(self.islands)
        island_programs = list(self.islands[island_id])

        if not island_programs:
            # Island is empty, fall back to any available program
            logger.debug(f"Island {island_id} is empty, sampling from all programs")
            return self._sample_random_parent()

        # Clean up stale references
        valid_programs = [pid for pid in island_programs if pid in self.programs]

        if not valid_programs:
            logger.warning(
                f"Island {island_id} has no valid programs, falling back to random sampling"
            )
            return self._sample_random_parent()

        # Uniform random selection
        parent_id = random.choice(valid_programs)
        return self.programs[parent_id]

    def _sample_from_archive_for_island(self, island_id: int) -> Program:
        """