ค่า To par ของ St Andrews ก่อนปี 1888 คืออะไร?
What's the To par of St Andrews before the year 1888?
df = pd.DataFrame(columns=['to_par_', 'a_', 'course', 'year'])
df[(df['course'] == 'st andrews') & (df['year'] < 1888)]['to_par_'][df['a_']]