Python如何在读取二进制文件时删除“b”？

Question

我有以下简单文件：

This Was Actually Written In Binary

By Suraj Vijay

我有以下代码：

file = open("test.dat","rb")
lines=list()
for line in file.readlines():
        lines.append(line.rstrip())
file.close()
print(lines)
print("File Reading Done")

这是我得到的输出：

 [b'This Was Actually Written In Binary', b'By Suraj Vijay']
 File Reading Done

但我不希望每个字符串的开头都有“b”（即，我希望输出如下所示：

  ['This Was Actually Written In Binary', 'By Suraj Vijay']
  File Reading Done

Answer 1

您可以执行以下操作，只需解码“utf-8”中的行：

file = open("test.dat","rb")
lines=list()
for line in file.readlines():
        lines.append(line.rstrip().decode("utf-8"))
file.close()
print(lines)
print("File Reading Done")

得到b是因为您将它编码为utf-8，现在它是一个字节对象

print(type(line))
<class 'bytes'>

Answer 2

在读取bytes后添加.decode()以转换string

file = open("test.dat","rb")
lines=list()
for line in file.readlines():
        lines.append(line.rstrip().decode())
file.close()
print(lines)
print("File Reading Done")

Answer 3

file = open('test.dat',"rb")
lines=list()
for line in file.readlines():
        lines.append(line.decode('utf8').rstrip())
file.close()
print(lines)