python读取log文件_Python读取log文件报错“UnicodeDecodeError”

问题描述：

写了一个读取log文件的Python脚本：

# -*- coding:utf-8 -*-

import os

import numpy as np

file = 'D:\pythonfile\test.log'

for line in open("test.log","r"):

print(line)

但是在执行时报错：

执行代码报错：

Traceback (most recent call last):

File "D:/pythonfile/my-test225.py", line 8, in

for line in open("test.log","r"):

UnicodeDecodeError: 'gbk' codec can't decode byte 0x80 in position 6946: illegal multibyte sequence

Process finished with exit code 1

报错如图：

问题原因：

这是因为日志编码格式和读取日志的解码格式不一致导致的

问题解决：

方法一，读取文件指定“encoding='UTF-8'：

# -*- coding:utf-8 -*-

import os

import numpy as np

file = 'D:\pythonfile\test.log'

for line in open("test.log","r",encoding='UTF-8'):

print(line)

方法二，读取文件指定rb(rb 以二进制读模式打开)：

# -*- coding:utf-8 -*-

import os

import numpy as np

file = 'D:\pythonfile\test.log'

# for line in open("test.log","rb"):

print(line)