如何在python中以二进制形式写入字节字符串？

要将使用二进制数字写入为文本“01”的位转换为字节：

>>> bits = '00000110001110001'
>>> int(bits, 2).to_bytes((len(bits.lstrip('0')) + 7) // 8, 'big')
b'\x0cq'

如果前导零很重要，则删除lstrip.

def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
    bits = bin(int.from_bytes(text.encode(encoding, errors), 'big'))[2:]
    return bits.zfill(8 * ((len(bits) + 7) // 8))


def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'):
    n = int(bits, 2)
    return n.to_bytes((n.bit_length() + 7) // 8, 'big').decode(encoding, errors) or '\0'


print(text_to_bits('kolya'))        

print(text_from_bits('0110101101101111011011000111100101100001'))