def validate()

in hiplot/experiment.py [0:0]

• 20 lines of code
• 9 McCabe index (conditional complexity)

    def validate(self) -> "Experiment":
        """
        Makes sure that this object is valid. Raises a :class:`hiplot.ExperimentValidationError` otherwise.
        Experiments with circular references, non-existent parents, or without datapoints are invalid.
        """
        seen: tp.Set[str] = set()
        dp_lookup: tp.Dict[str, Datapoint] = {dp.uid: dp for dp in self.datapoints}
        for p in self.datapoints:
            if p.uid not in seen:
                seen_now: tp.Set[str] = {p.uid}
                dp = p
                while dp.from_uid is not None and dp.from_uid not in seen:
                    if dp.from_uid in seen_now:
                        raise ExperimentValidationCircularRef(f"Circular reference in {p} parents ({len(seen_now)}-th parent)")
                    seen_now.add(dp.from_uid)
                    if dp.from_uid not in dp_lookup:
                        raise ExperimentValidationMissingParent(f"Datapoint ({dp.uid}) parent ({dp.from_uid}) not found")
                    dp = dp_lookup[dp.from_uid]
                seen |= seen_now
            p.validate()
        if not self.datapoints:
            raise ExperimentValidationError('Not a single datapoint')
        validate_colormap(self.colormap)
        return self