Regression task — PyCaret 4.0.
PyCaret 4.0 is OOP-only; the 3.x module-level functional API was removed.
from pycaret.regression import RegressionExperiment
exp = RegressionExperiment(target="medv", session_id=42).fit(df)
best = exp.compare_models().best
preds = exp.predict_model(best).predictions