Error on Prediction

Q&A DQ Courses
#1

from sklearn.linear_model import LogisticRegression
from sklearn.neighbors import KNeighborsClassifier
from sklearn.model_selection import GridSearchCV

def select_model(df, features):
all_X = df[features]
all_y = df[“Survived”]

models = [
{
"name": "LogisticRegression",
"estimator": LogisticRegression(),
"hyperparameters":
    {
        "solver": ['newton-cg','lbfgs','liblinear']
    }
},
{
"name": "KNeighborsClassifier",
"estimator": KNeighborsClassifier(),
"hyperparameters":
    {
        "n_neighbors": range(1,20,2),
        "weights": ["distance", "uniform"],
        "algorithm": ["ball_tree", "kd_tree", "brute"],
        "p": [1,2]
    }
},
{
"name": "RandomForestClassifier",
"estimator": RandomForestClassifier(),
"hyperparameters":
    {
        "n_estimators": [4,6,9],
        "criterion": ["entropy", "gini"],
        "max_depth": [2,5,10],
        "max_features": ['log2','sqrt'],
        "min_samples_leaf": [1,5,8],
        'min_samples_split': [2,3,5]
    }
}
]

for model in models:
    print(model['name'])
    
    grid = GridSearchCV(model['estimator'], 
                        param_grid = model['hyperparameters'],
                        cv=10)
    grid.fit(all_X, all_y)
    model['best_params'] = grid.best_params_
    model['best_score'] = grid.best_score_
    model['best_estimator'] = grid.best_estimator_
    
    print('Best Score: {}'.format(model['best_score']))
    print('Best Parameters: {}'.format(model['best_params']))
    
return models

def save_submission_file(model,cols,filename=‘submission.csv’):
holdout_data = holdout[cols]
predictions = model.predict(holdout_data)

submission = pd.DataFrame({'PassengerId': holdout['PassengerId'],
                           'Survived': predictions})
submission.to_csv(filename, index=False)

model = select_model(train, cols)

submission = save_submission_file(model[2], cols)

I expected the model to make predictions on the holdout data.

Instead, I received the error:

'dict' object has no attribute 'predict'

How can I fix this error?

#2

I would first recommend going through my answer here - Stuck on Step 1, Course 2, Lesson 6 - #3 by the_doctor to a different question, but one which focuses on trying to break down the problem to resolve the error yourself first.