# vi diff.py

#!/usr/bin/env python

import difflib

text1 = '''text1:
This mudule provides classes and fuctions for comparing sequences.
including HTML and context and unified diffs.
difflib document v7.4
add string
'''
text1_lines = text1.splitlines()

text2 = '''text2:
This mudule provides classes and fuctions for Comparing sequences.
including HTML and  context and unified diffs.
difflib document v7.5
''' 
text2_lines = text2.splitlines()

#d = difflib.Differ()
#diff = d.compare(text1_lines, text2_lines)

#print '\n'.join(list(diff))

d = difflib.HtmlDiff()
print d.make_file(text1_lines, text2_lines)

运行脚本并重定向为一个html静态页面

# chmod 755 diff.py

# ./diff.py  > diff.html

浏览器打开该页面

如图: