如何将字符串的二进制表示形式转换回Python中的原始字符串？

Question

I haven't been able to find an answer to the following question: Start with a string, convert it to its binary representation. How do you get back the original string in Python?

Example:

a = 'hi us'
b = ''.join(format(ord(c), '08b') for c in a)

then b = 0110100001101001001000000111010101110011

Now I want to get 'hi us' back in Python 2.x. For example, this website accomplishes the task: http://string-functions.com/binary-string.aspx

I've seen several answers for Java, but haven't had luck implementing to Python. I've also tried b.decode() , but don't know which encoding I should use in this case.

Answer 1

use this code:

import binascii
n = int('0110100001101001001000000111010101110011', 2)
binascii.unhexlify('%x' % n)

Answer 2

>>> print ''.join(chr(int(b[i:i+8], 2)) for i in range(0, len(b), 8))
'hi us'

Split b in chunks of 8, parse to int using radix 2, convert to char, join the resulting list as a string.