//  [python]
def test_playground_sklearn():

	# when testing locally, we can set credentials from file
	try:
		set_credentials(credential_file="../../../credentials.txt", type="deploy_model")
	except Exception as e:
		print(e)

	try:
		set_credentials(credential_file="../../credentials.txt", type="deploy_model")
	except Exception as e:
		print(e)

	# mock user input
	inputs = [os.environ.get('USERNAME'),
			  os.environ.get('PASSWORD'),
			  os.environ.get('AWS_ACCESS_KEY_ID'),
			  os.environ.get('AWS_SECRET_ACCESS_KEY'),
			  os.environ.get('AWS_REGION')]

	with patch("getpass.getpass", side_effect=inputs):
		from aimodelshare.aws import configure_credentials
		configure_credentials()

	# set credentials
	set_credentials(credential_file="credentials.txt", type="deploy_model")
	#os.environ["AWS_TOKEN"]=get_aws_token()

	# clean up credentials file
	os.remove("credentials.txt")

	# Get materials for tutorial
	X_train, X_test, y_train, y_test, example_data, y_test_labels = ai.import_quickstart_data("titanic")

	# We create the preprocessing pipelines for both numeric and categorical data.
	numeric_features = ['age', 'fare']
	numeric_transformer = Pipeline(steps=[
	    ('imputer', Imputer(strategy='median')), #'imputer' names the step
	    ('scaler', StandardScaler())])

	categorical_features = ['embarked', 'sex', 'pclass']

	# Replacing missing values with Modal value and then one-hot encoding.
	categorical_transformer = Pipeline(steps=[
	    ('imputer', Imputer(strategy='most_frequent')),
	    ('onehot', OneHotEncoder(handle_unknown='ignore'))])

	# Final preprocessor object set up with ColumnTransformer...
	preprocess = ColumnTransformer(
	    transformers=[
	        ('num', numeric_transformer, numeric_features),
	        ('cat', categorical_transformer, categorical_features)])

	# fit preprocessor to your data
	preprocess = preprocess.fit(X_train)

	# Write function to transform data with preprocessor 
	# In this case we use sklearn's Column transformer in our preprocessor function
	def preprocessor(data):
	    preprocessed_data=preprocess.transform(data)
	    return preprocessed_data

	# check shape of X data after preprocessing it using our new function
	assert preprocessor(X_train).shape == (1047, 10)

	# build model 1
	model = LogisticRegression(C=10, penalty='l1', solver = 'liblinear')
	model.fit(preprocessor(X_train), y_train)
	model.score(preprocessor(X_train), y_train)

	# generate predictions
	prediction_labels = model.predict(preprocessor(X_test))

	# Instantiate ModelPlayground() Class
	myplayground=ModelPlayground(input_type="tabular", task_type="classification", private=True)

	# Create Model Playground page
	myplayground.create(eval_data = y_test_labels)

	# Submit Model to Experiment Leaderboard
	myplayground.submit_model(model = model,
							  preprocessor=preprocessor,
							  prediction_submission=prediction_labels, 
							  input_dict={"description": "", "tags": ""},
							  submission_type="all")

	# build model 2
	model_2 = LogisticRegression(C=.01, penalty='l2')
	model_2.fit(preprocessor(X_train), y_train) # Fitting to the training set.
	model_2.score(preprocessor(X_train), y_train) # Fit score, 0-1 scale.

	# generate predictions
	prediction_labels = model_2.predict(preprocessor(X_test))

	# Submit Model 2 to Experiment
	myplayground.submit_model(model= model_2,
	                          preprocessor=preprocessor,
	                          prediction_submission=prediction_labels,
	                          input_dict={"description": "", "tags": ""},
	                          submission_type="all")

	#submit model through competition
	mycompetition = ai.playground.Competition(myplayground.playground_url)
	mycompetition.submit_model(model=model_2,
							   preprocessor=preprocessor,
							   prediction_submission=prediction_labels,
							   input_dict={"description": "", "tags": ""}
							   )

	#submit model through experiment
	myexperiment = ai.playground.Experiment(myplayground.playground_url)
	myexperiment.submit_model(model=model_2,
							   preprocessor=preprocessor,
							   prediction_submission=prediction_labels,
							  input_dict={"description": "", "tags": ""}
							  )

	# Check Competition Leaderboard
	data = myplayground.get_leaderboard()
	myplayground.stylize_leaderboard(data)
	assert isinstance(data, pd.DataFrame)

	# Compare two or more models
	data = myplayground.compare_models([1,2], verbose=1)
	myplayground.stylize_compare(data)
	assert isinstance(data, (pd.DataFrame, dict))

	# Check structure of evaluation data
	data = myplayground.inspect_eval_data()
	assert isinstance(data, dict)

	# deploy model
	myplayground.deploy_model(model_version=1, example_data=example_data, y_train=y_train)

	# update example data
	myplayground.update_example_data(example_data)

	# swap out runtime model
	myplayground.update_runtime_model(model_version=1)

	# delete
	myplayground.delete_deployment(confirmation=False)

	# local cleanup 
	shutil.rmtree("titanic_competition_data", onerror=redo_with_write)
	shutil.rmtree("titanic_quickstart", onerror=redo_with_write)