python二进制dat数据怎么转成txt文本

import os

import binascii

from functools import partial

i = 0

f = open('c.txt', 'rb')

f2 = open('f.txt', 'w')

records = iter(partial(f.read,1), b'')

for r in records:

    r_int = int.from_bytes(r, byteorder='big')  #将 byte转化为 int

    str_bin = bin(r_int).lstrip('0b')  #将int转化为二进制字符

    if r_int.bit_length() < 8 :  #以8bit为单位，不足8bit的补零

        str_bin = (8 - r_int.bit_length()) * '0' + str_bin

    f2.write(str_bin)

    i += 1

    if i == 4 :              #以32bit为单位分行

        f2.write('\n')

        i = 0

f.close

f2.close