在Python 3中删除字符串文字前面的'b'字符do [英] Remove 'b' character do in front of a string literal in Python 3

问题描述

我是python编程的新手，我有点困惑.我尝试从字符串中获取字节以进行哈希和加密，但是我得到了

I am new in python programming and i am a bit confused. I try to get the bytes from a string to hash and encrypt but i got

b'...'

像下面的示例一样，字符串前面的

b字符.有什么办法可以避免这种情况吗?有人可以提供解决方案吗?很抱歉这个愚蠢的问题

b character in front of string just like the below example. Is any way avoid this?.Can anyone give a solution? Sorry for this silly question

import hashlib

text = "my secret data"
pw_bytes = text.encode('utf-8')
print('print',pw_bytes)
m = hashlib.md5()
m.update(pw_bytes)

输出:

 print b'my secret data'

推荐答案

解码是多余的

由于对发生的事情有误解，所以您只遇到了这个错误".

You only had this "error" in the first place, because of a misunderstanding of what's happening.

之所以会得到b，是因为您已将其编码为utf-8，现在它是一个字节对象.

You get the b because you encoded to utf-8 and now it's a bytes object.

 >> type("text".encode("utf-8"))
 >> <class 'bytes'>

修复:

1. 您可以先打印字符串
2. 编码后冗余解码

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