python实现比较文件内容异同

本文实例为大家分享了python实现比较文件内容异同的具体代码，供大家参考，具体内容如下

import sys
import difflib
import time
import os
"""
创作时间：2017-10-08 23:30 09
版本： 1.0.0
"""
def main():
 """主函数"""
 try:
   f1 = sys.argv[1]#获取文件名
   f2 = sys.argv[2]
 except Exception as e:
   print("Error: "+ str(e))
   print("Usage : python compareFile.py filename1 filename2")
   sys.exit()

if f1 == "" or f2 == "":#参数不够
   print("Usage : python compareFile.py filename1 filename2")
   sys.exit()

tf1 = readFile(f1)
 tf2 = readFile(f2)

d = difflib.HtmlDiff()#创建一个实例difflib.HtmlDiff
 writeFile(d.make_file(tf1,tf2))#生成一个比较后的报告文件，格式为html

def readFile(filename):
 """读取文件，并处理"""
 try:
   fileHandle = open(filename, "r")
   text = fileHandle.read().splitlines()
   fileHandle.close()
   return text
 except IOError as e:
   print("Read file error: "+ str(e))
   sys.exit()

def writeFile(file):
 """写入文件"""
 diffFile = open('diff_{}_.html'.format(time.strftime("％Y_％m_％d_％H_％M_％S",time.localtime())), "w")
 diffFile.write("<meta charset='UTF-8'>")
 diffFile.write(file)
 print("The file on {}".format(os.path.abspath(str(diffFile.name))))#提示文件生成在什么地方
 diffFile.close()

if __name__ == "__main__":
 main()

来源：https://blog.csdn.net/Sino_Crazy_Snail/article/details/78185667