我试图用这段代码解决一项任务：
bank_holiday= [1,1,2,2] #gives the list of bank holidays in each month
def bank_holiday(month):
month -= 1#Takes away the numbers from the months,as months start at 1 (January) not at 0. There is no 0 month.
print(bank_holiday[month])
bank_holiday(int(input("Which month would you like to check out: ")))
但是当我运行它时,我收到错误：
TypeError: 'function' object is not subscriptable
我不明白这是从哪里来的……