Python 列表对象属性“追加”是只读的
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Python List object attribute 'append' is read-only
提问by Kraegan Epsilon
as the title says, in python, I'm trying to make it so when someone types in a choice (in this case Choice13) then it deletes the old password from the list passwords and adds the new one instead.
正如标题所说，在python中，我试图做到这一点，当有人输入一个选项（在本例中为Choice13）时，它会从列表密码中删除旧密码并添加新密码。
passwords = ['mrjoebblock' , 'mrjoefblock' , 'mrjoegblock', 'mrmjoeadmin' ]
if choice == '3':
password = raw_input('Welcome admin! I\'m going to need your password ')
if password == 'mrjoeadmin':
print('Welcome Mr. Joe!')
Choice11 = raw_input('What would you like to do? Press 1 for changing your admin password, 2 for viewing a class\'s comments, or 3 for changing a class\'s password')
if Choice11 == '1':
print('You have chosen to change your password! ')
Choice12 = raw_input('You will need to put in your current password to access this feature ')
if Choice12 == 'mrmajoeadmin':
Choice13 = raw_input('What would you like to change your password to? ')
passwords.remove('mrjoeadmin')
passwords.append = Choice13
采纳答案by mgilson
To append something to a list, you need to callthe appendmethod:
要将某些内容附加到列表中，您需要调用该append方法：
passwords.append(Choice13)
As you've seen, assigningto the append method results in an exception as you shouldn't be replacing methods on builtin objects -- (If you want to modify a builtin type, the supported way to do that is via subclassing).
如您所见，分配给 append 方法会导致异常，因为您不应该替换内置对象上的方法——（如果您想修改内置类型，支持的方法是通过子类化）。
回答by eyalsn
or you could modify the same list slot by doing:
或者您可以通过执行以下操作来修改相同的列表插槽：
passwords[passwords.index('mrjoeadmin')] = Choice13
