Python 'bytes' 对象没有属性 'encode'
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'bytes' object has no attribute 'encode'
提问by DEVV911
I'm trying to store salt and hashed password before inserting each document into a collection. But on encoding the salt and password, it shows the following error:
我试图在将每个文档插入集合之前存储盐和散列密码。但是在对盐和密码进行编码时，它显示以下错误：
line 26, in before_insert
document['salt'] = bcrypt.gensalt().encode('utf-8')
AttributeError: 'bytes' object has no attribute 'encode'
This is my code:
这是我的代码：
def before_insert(documents):
for document in documents:
document['salt'] = bcrypt.gensalt().encode('utf-8')
password = document['password'].encode('utf-8')
document['password'] = bcrypt.hashpw(password, document['salt'])
I'm using eve framework in virtualenv with python 3.4
我在 virtualenv 中使用 eve 框架和 python 3.4
回答by Kreu
You're using :
您正在使用：
bcrypt.gensalt()这个方法似乎生成了一个字节对象。这些对象没有任何编码方法，因为它们只适用于 ASCII 兼容数据。所以你可以尝试不.encode('utf-8').encode('utf-8')
回答by MarianD
The saltfrom the .getsalt()method is a bytes object, and all the "salt" parameters in the methods of bcrypt module expect it in this particular form. There is no need to convert it to something else.
该盐从.getsalt()方法是一个字节对象，并且在bcrypt模块的方法的所有的“盐”参数期望它在这一特定形式。无需将其转换为其他内容。
In contrast to it, the "password" parameters in methods of bcrypt module are expected it in the form of the Unicode string- in Python 3 it is simply a string.
与此相反， bcrypt 模块方法中的“密码”参数需要以Unicode 字符串的形式出现- 在 Python 3 中它只是一个string。
So - assuming that your original document['password']is a string, your code should be
所以 - 假设你的原件document['password']是一个字符串，你的代码应该是
def before_insert(documents):
for document in documents:
document['salt'] = bcrypt.gensalt()
password = document['password']
document['password'] = bcrypt.hashpw(password, document['salt'])
