Python＆＃39; builtin_function_or_method＆＃39;对象没有属性＆＃39; __ getitem __＆＃39;

Question

我试图测试一些东西，所以我可以进行python文本冒险，但它不起作用。这是代码：

calories = [3]

fooland= ("fooland")
area=fooland
joint= ("joint")

while area=="fooland":
talk=raw_input("Where to go?")

if talk==joint:
    area=joint

else:
    print "You cant do that!"


while area=="joint":
order=raw_input("What to order?")

if order=="fries":
    print "You eat like a BAWS"
    calories.append[2]

else:
    print "You cant eat that, but here is some grease!"
    calories.append[6]

 if [calories < 10]:
print "YOU ARE FAT"

但是我收到了这个错误：

'builtin_function_or_method' object has no attribute '__getitem__'

我做错了什么，我该如何解决？

Answer 1

要调用方法（如append），请将参数包装在（）而不是[]。

Answer 2

I also met this problem ever, and I found that the reason is that I wrote []after function invoke wrongly:

 f.pop[para1]   // wrong 
 f.pop(para1)   // correct    

Just change [] into () and program can work.

Answer 3

你必须这样做：

    if (int(calories) < 10):
      print "YOU ARE FAT"