difflib 如何把比较结果输出到文件

[syhhl123]

#-*- coding:utf-8 -*-
import os,difflib
from difflib import *

if __name__=='__main__':

d1=open(r"d:\py\1.py").read().splitlines()
d2=open(r"d:\py2\1.py").read().splitlines()
diff=difflib.unified_diff(d1,d2,lineterm='')
print '\n'.join(list(diff))
newb=open(r'logoutput.txt','w')
newb.write(diff) #这么写不行，应该怎么写呢？
newb.close()

[ImN1]

你都懂print '\n'.join(list(diff)) 不晓得把它改为 write 么？

[chenhaiou553166961]

newb.write(str(diff))#只能写str类型的

[syhhl123]

newb.write(str(diff))这种也不行，我试过了。 写进去是下面这种东西。 <generator object unified_diff at 0x013FAF80> print '\n'.join(list(diff))改成write也不行，什么都没有。

[ImN1]

generator不能二次使用 你要先list赋值给一个变量，然后print/write各自调用这个变量

[syhhl123]

是这样吗？但是输出是空的。还是不行。 ss = list(diff) newb.write(ss)

[ImN1]

唉，点不通…… print '\n'.join(list(diff)) 你这样写就意味着你明白diff不是个字符串，就算list后也不是字符串，怎呢直接write呢？ newb.write('\n'.join(ss))

[syhhl123]

是这样吗？但是输出还是空的。麻烦再指点下。 print '\n'.join(list(diff)) newbook=open(r'logoutput.txt','w') ss = list(diff) newn.write('\n'.join(ss)) newb.close()

[ImN1]

看#4 然后理解一下汉语里面“二次”“各自”是什么意思 很晕

[SFinx]

引用 7 楼 syhhl123 的回复:

是这样吗？但是输出还是空的。麻烦再指点下。 print '\n'.join(list(diff)) newbook=open(r'logoutput.txt','w') ss = list(diff) newn.write('\n'.join(ss)) newb.close()

diff是generator,你是不是在上面的运行结果下面直接跟着运行了？ 重新

diff=difflib.unified_diff(d1,d2,lineterm='')

[wangyangkobe]

#!/bin/python

import difflib

def main():
    text1 = """http://www.vpsee.com is a website which is dedicated for 
building scalable websites on cloud platforms. The keywords are: Linux, Mac,
Cloud Computing, C, Python, MySQL, Nginx, VPS, Performance, Scalability,
Architecture, ..., etc. Have fun!"""
    text1_lines = text1.splitlines()

    text2 = """http://VPSee.com is a website which is dedicated for 
building scalable websites on cloud platforms. The keywords are: Linux, Mac,
Cloud Computing, C, Python, MySQL, Nginx, VPS, Performance, Scalability,
Programming, Optimisation, Architecture, ... , etc. Have fun !"""
    text2_lines = text2.splitlines()

    d = difflib.HtmlDiff()
    with open("result.html", "w") as f:
        for line in d.make_file(text1_lines, text2_lines):
            f.write(line)


if __name__ == '__main__':
    main()

[wangyangkobe]

引用 10 楼 wangyangkobe 的回复:

#!/bin/python

import difflib

def main():
    text1 = """http://www.vpsee.com is a website which is dedicated for 
building scalable websites on cloud platforms. The keywords are: Linux, Mac,
Cloud Computing, C, Python, MySQL, Nginx, VPS, Performance, Scalability,
Architecture, ..., etc. Have fun!"""
    text1_lines = text1.splitlines()

    text2 = """http://VPSee.com is a website which is dedicated for 
building scalable websites on cloud platforms. The keywords are: Linux, Mac,
Cloud Computing, C, Python, MySQL, Nginx, VPS, Performance, Scalability,
Programming, Optimisation, Architecture, ... , etc. Have fun !"""
    text2_lines = text2.splitlines()

    d = difflib.HtmlDiff()
    with open("result.html", "w") as f:
        for line in d.make_file(text1_lines, text2_lines):
            f.write(line)


if __name__ == '__main__':
    main()

可以使用make_file 或者 make_table