def _parallel_build_estimators(n_estimators, ensemble, X, y, sample_weight,
                               max_samples, seeds, total_n_estimators, verbose):
    """Private function used to build a batch of estimators within a job."""
    # Retrieve settings
    n_samples, n_features = X.shape
    max_features = ensemble.max_features

    if (not isinstance(max_samples, (numbers.Integral, np.integer)) and
            (0.0 < max_samples <= 1.0)):
        max_samples = int(max_samples * n_samples)

    if (not isinstance(max_features, (numbers.Integral, np.integer)) and
            (max_features <= 1.0 < 0.0)):
        max_features = int(max_features * n_features)

    bootstrap = ensemble.bootstrap
    bootstrap_features = ensemble.bootstrap_features
    support_sample_weight = has_fit_parameter(ensemble.base_estimator_,
                                              "sample_weight")
    if not support_sample_weight and sample_weight is not None:
        raise ValueError("The base estimator doesn't support sample weight")

    # Build estimators
    estimators = []
    estimators_samples = []
    estimators_features = []

    for i in range(n_estimators):
        if verbose > 1:
            print("Building estimator %d of %d for this parallel run (total %d)..." %
                  (i + 1, n_estimators, total_n_estimators))

        random_state = check_random_state(seeds[i])
        seed = random_state.randint(MAX_INT)
        estimator = ensemble._make_estimator(append=False)

        try:  # Not all estimator accept a random_state
            estimator.set_params(random_state=seed)
        except ValueError:
            pass

        # Draw features
        if bootstrap_features:
            features = random_state.randint(0, n_features, max_features)
        else:
            features = sample_without_replacement(n_features,
                                                  max_features,
                                                  random_state=random_state)

        # Draw samples, using sample weights, and then fit
        if support_sample_weight:
            if sample_weight is None:
                curr_sample_weight = np.ones((n_samples,))
            else:
                curr_sample_weight = sample_weight.copy()

            if bootstrap:
                indices = random_state.randint(0, n_samples, max_samples)
                sample_counts = bincount(indices, minlength=n_samples)
                curr_sample_weight *= sample_counts

            else:
                not_indices = sample_without_replacement(
                    n_samples,
                    n_samples - max_samples,
                    random_state=random_state)

                curr_sample_weight[not_indices] = 0

            estimator.fit(X[:, features], y, sample_weight=curr_sample_weight)
            samples = curr_sample_weight > 0.

        # Draw samples, using a mask, and then fit
        else:
            if bootstrap:
                indices = random_state.randint(0, n_samples, max_samples)
            else:
                indices = sample_without_replacement(n_samples,
                                                     max_samples,
                                                     random_state=random_state)

            sample_counts = bincount(indices, minlength=n_samples)

            estimator.fit((X[indices])[:, features], y[indices])
            samples = sample_counts > 0.

        estimators.append(estimator)
        estimators_samples.append(samples)
        estimators_features.append(features)

    return estimators, estimators_samples, estimators_features
dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/ensemble/bagging.py/_parallel_build_estimators/swapped operands of `<`