Python中的二进制到字符串/文本 [英] Binary to String/Text in Python

问题描述

我已经在线搜索了很多次，但找不到一种方法来转换我的二进制字符串变量 X

I have searched many times online and I have not been able to find a way to convert my binary string variable, X

X = "1000100100010110001101000001101010110011001010100"

转换为UTF-8字符串值.

into a UTF-8 string value.

我发现有些人正在使用诸如

I have found that some people are using methods such as

b'message'.decode('utf-8')

但是，这种方法对我不起作用，因为据说不存在"b"，而且我不确定如何用变量替换消息".不仅如此，我还无法理解这种方法的工作原理.有更好的选择吗?

however, this method has not worked for me, as 'b' is said to be nonexistent, and I am not sure how to replace the 'message' with a variable. Not only, but I have not been able to comprehend how this method works. Is there a better alternative?

那么如何将二进制字符串转换为文本字符串?

So how could I convert a binary string into a text string?

我也不介意ASCII解码

I also do not mind ASCII decoding

澄清:这就是我想发生的事情.

CLARIFICATION: Here is specifically what I would like to happen.

def binaryToText(z):
    # Some code to convert binary to text
    return (something here);
X="0110100001101001"
print binaryToText(X)

然后将产生字符串...

This would then yield the string...

hi

推荐答案

您似乎正在尝试从每个字符的二进制字符串表示形式(位字符串)中解码ASCII字符.

It looks like you are trying to decode ASCII characters from a binary string representation (bit string) of each character.

您可以将每个块包含八个字符(一个字节)，将其转换为整数，然后使用chr()将其转换为字符:

You can take each block of eight characters (a byte), convert that to an integer, and then convert that to a character with chr():

>>> X = "0110100001101001"
>>> print(chr(int(X[:8], 2)))
h
>>> print(chr(int(X[8:], 2)))
i

假设字符串中编码的值是ASCII，这将为您提供字符.您可以将其概括如下:

Assuming that the values encoded in the string are ASCII this will give you the characters. You can generalise it like this:

def decode_binary_string(s):
    return ''.join(chr(int(s[i*8:i*8+8],2)) for i in range(len(s)//8))

>>> decode_binary_string(X)
hi

如果您想将其保留为原始编码，则无需进一步解码.通常，您会将输入的字符串转换成Python的 unicode 字符串，可以这样做(Python 2):

If you want to keep it in the original encoding you don't need to decode any further. Usually you would convert the incoming string into a Python unicode string and that can be done like this (Python 2):

def decode_binary_string(s, encoding='UTF-8'):
    byte_string = ''.join(chr(int(s[i*8:i*8+8],2)) for i in range(len(s)//8))
    return byte_string.decode(encoding)

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