Tom Garrigus เขียนบทหมายเลขตอนใดของซีซันและมีผู้ชม 2.31 ล้านคน
What episode number of the season was written by Tom Garrigus and had 2.31 million u.s. viewers?
df = pd.DataFrame(columns=['season__number', 'us_viewers__million_', 'written_by'])
df[(df['us_viewers__million_'] == '2.31') & (df['written_by'] == 'Tom Garrigus')]['season__number'].max()