Error in code while using all features in knn

Screen Link:
https://app.dataquest.io/m/140/multivariate-k-nearest-neighbors/10/using-all-features

My Code:

from sklearn.neighbors import KNeighborsRegressor
knn = KNeighborsRegressor(n_neighbors=5, algorithm=‘brute’, metric=‘euclidean’)
knn.fit(train_df.drop([“price”],axis=1), train_df[‘price’])
all_features_predictions= knn.predict(test_df.drop(columns=[“price”],axis=1)
all_features_mse=mean_squared_error(test_df[‘price’],all_features_predictions)
all_features_rmse=numpy.sqrt(all_features_mse)

Replace this line with your code

What I expected to happen:

What actually happened:
it is showing an error . i can’t understand what is the mistake here ?

Replace this line with the output/error

Please make sure to share the actual error (traceback) you get as well.

Parenthesis missing sir.