file-diff.py――文件对比，输出HTML文档

#!/usr/bin/env python

#coding:utf-8

import difflib

import sys

try:

    textfile1 = sys.argv[1]    # 第一个配置文件路径参数

    textfile2 = sys.argv[2]    # 第二个配置文件路径参数

except Exception, e:

    print "Error: "+str(e)

    print "Usage: file-diff.py filename1 filename2"

    sys.exit()

def readfile(filename):    # 文件读取分隔函数

    try:

        fileHandle = open(filename, 'rb')

        text = fileHandle.read().splitlines()    # 读取后以行进行分隔

        fileHandle.close()

        return text

    except IOError as error:

        print("Read file Error: "+str(error))

        sys.exit()

if textfile1 == "" or textfile2 == "":

    print "Usage: file-diff.py filename1 filename2"

    sys.exit()

text1_lines = readfile(textfile1)    # 调用readfile函数，获取分隔后的字符串

text2_lines = readfile(textfile2)

d = difflib.HtmlDiff()    # 创建HtmlDiff对象

print d.make_file(text1_lines, text2_lines)    # 通过make_file方法输出HTML格式的对比结果