关于Python大括号添加问题，急！！！

运行时两处错误
第14行，inventory.append("pocket")

inventory是一个dict对象，没有append方法，想增加新的key可以直接：

inventory['pocket'] = []

第20行，inventory['gold'].append(50)

不知道你想干啥，"gold"对应的value是一个int型对象，也没有append方法：

如果希望”gold“对应一个list 的话，第2行应该为：

‘gold’:[50],

代码存在以下问题：

• 字典类型`inventory`没有`append`方法，使用`append`方法会抛出`AttributeError`异常；

• inventory['pocket']`和`inventory['gold']是不存在的，需要先在字典中添加一个新的键值对。

修正后的代码如下：

inventory = {

'gold' : 500,

'pouch' : ['flint', 'twine', 'gemstone'], # Assigned a new list to 'pouch' key

'backpack' : ['xylophone','dagger', 'bedroll','bread loaf']

}

# Adding a key 'burlap bag' and assigning a list to it

inventory['burlap bag'] = ['apple', 'small ruby', 'three-toed sloth']

# Sorting the list found under the key 'pouch'

inventory['pouch'].sort()

# Add new key 'pocket' and assign a list to it

inventory['pocket'] = []

inventory['pocket'].append("seashell")

inventory['pocket'].append("strange berry")

inventory['pocket'].append("lint")

inventory['pocket'].sort()

# Remove 'dagger' from the list found under the key 'backpack'

inventory['backpack'].remove('dagger')

# Increase the value of the key 'gold' by 50

inventory['gold'] += 50

修正后的代码通过了之前的错误，inventory字典中添加了新的键值对，并对列表进行了排序、删除和增加。

希望我的回答对您有所帮助！

inventory = {
'gold' : 500,
'pouch' : ['flint', 'twine', 'gemstone'], # Assigned a new list to 'pouch' key
'backpack' : ['xylophone','dagger', 'bedroll','bread loaf']
}
# Adding a key 'burlap bag' and assigning a list to it
inventory['burlap bag'] = ['apple', 'small ruby', 'three-toed sloth']
# Sorting the list found under the key 'pouch'
inventory['pouch'].sort()
# Your code here
inventory['pocket']=['seashell','strange berry','lint']
inventory['backpack'].sort()
inventory['backpack'].remove('dagger')
inventory['gold']=550