I am trying to create a function in python 3 that builds a dataframe from a csv file. However, I keep getting a syntax error when I call

```
y = (data_df["Status"].replace("underperform",0).replace("outperform",1).values.tolist())

```

This line of code is not running, because I never actually call the function. Here is all of my code. 

```
def Build_Data_Set(features = ["DE Ratio","Trailing P/E"]):
    data_df = pd.read_csv("key_stats.csv") #created in other file

    X = np.array(data_df[features].values#.tolist())

    y = (data_df["Status"].replace("underperform",0).replace("outperform",1).values.tolist())

    return X,y

```

How should I go about fixing this error?