y_true = [1, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2]  

y_pred = [1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2]  

target_names = [ 'class 1', 'class 2']   

result = metrics.classification_report_imbalanced(y_true, y_pred, target_names=target_names)  

print(result)