python import lightgbm as lgb from sklearn.datasets import loadiris from sklearn.modelselection import GridSearchCV

iris = load_iris

params = { 'learningrate': , 'nestimators': range, 'maxdepth': range, 'minchildsamples': range, 'numleaves': range, 'max_bin': range }

clf = lgb.LGBMClassifier

cv = 5 n_jobs = -1

gsearch = GridSearchCV

gsearch.fit

print