如何使用Python从一个文件搜索并替换到另一个文件？

Question

我有一个文件file1.txt：

I Show more flower you can see by link
All is Beautyfull.You Can View Here !
Link View :

http://lincoln.com/view/12432134/flower1.jpg    
http://lincoln.com/view/34645645/flower3456.jpg    
http://lincoln.com/view/75634534/flower56.jpg    
http://lincoln.com/view/86764454/flower2.jpg

还有一个file2.txt：

^{pr2}$

我想要的是：

I Show more flower you can see by link
All is Beautyfull.You Can View Here !
Link View :

http://lincoln.com/view/43645645/flower1.jpg    
http://lincoln.com/view/84344454/flower3456.jpg    
http://lincoln.com/view/43343433/flower56.jpg    
http://lincoln.com/view/13424324/flower2.jpg

More Link VIew:

http://kashi.com/view/343434344/flower1.jpg    
http://kashi.com/view/766454544/flower3456.jpg    
http://kashi.com/view/32634545/flower56.jpg    
http://kashi.com/view/84353453/flower2.jpg    
++++++++++++++++++++++++++++++++++++++++

I Show more candy you can see by link
All is Beautyfull.You Can View Here !
http://photobucket.com

伪代码是：

if filename exists in file1 but not in file2:
    remove filename
else if filename exists in file1 and in file2:
    the version in file2 replaces the line in file1
else if filename exists in file2 but not in file1:
    do nothing

add the links with the domaine name "http://kashi.com" from file2.txt
in a section "More link view"
add "++++++++++++++++++++++++++"

我试过这个算法：

def file_merge(file1name,file2name):
    file1contents = list()
    file2contents = list()
    file1 = open(file1name, 'U')
    for line in file1:
        line = line.replace('\n','')
        line = line.split('/')
        file1contents.append(line)
    file1.close()
    file2 = open(file2name, 'U')
    for line in file2:
        line = line.replace('\n','')
        line = line.split('/')
        file2contents.append(line)
    file2.close()
    file3contents = file1contents
    for x in file2contents:
        for y in file1contents:
            if x[-1] == y[-1]:
                file3contents[file3contents.index(y)] = x

    file3 = open(file1name,'w')
    for line in file3contents:
        file3.write(str('/'.join(line))+'\n')
    file3.close()

file_merge('file1.txt','file2.txt')

谢谢！在

---

简单的是： 将file2.txt中的“filename”替换为file1.txt中的“filename”

并将linkhttp://kashi.com和“filename”追加到关键字“+++++++++++++++++++++++++++++++

作为：

[img]http://photobucket.com/98a267d32b056fb0a5c8c07dd4c35cc5.jpg[/img]

Fomart:IMG 
Quality:High



http://lincoln.com/view/4148476844/flower1.jpg
http://lincoln.com/view/4148476994/flowe2.jpg
http://lincoln.com/view/4148501374/flower3.jpg
http://lincoln.com/view/4148476324/flower4.jpg
http://lincoln.com/view/4148494685/flower5.jpg
http://lincoln.com/view/4148626615/flowew6.jpg

You Can VIEW More Link !



More Link:
http://kashi.com/view/414865/flower1.jpg
http://kashi.com/view/6344353/flower2.jpg
http://kashi.com/view/234234/flower3.jpg
http://kashi.com/view/6543534/flower4.jpg
http://kashi.com/view/2342342/flower5.jpg
http://kashi.com/view/234234/flower6.jpg


++++++++++++++++++++++++++++++++++++
[img]http://phtobucket.com/004_8N9FEWFZD7ECJC6.jpg[/img]
Format:Img
Quality:High


http://lincoln.com/view/4148633524/candy1.jpg
http://lincoln.com/view/4148538064/candy2.jpg
http://lincoln.com/view/4148537824/candy3.jpg
http://lincoln.com/view/4148562565/candy4.jpg
http://lincoln.com/view/4148562035/candy5.jpg




You Can VIEW More Link !




More Link:
http://kashi.com/view/23423423/candy1.jpg
http://kashi.com/view/345345/candy2.jpg
http://kashi.com/view/234234/candy3.jpg
http://kashi.com/view/3434342/candy4.jpg
http://kashi.com/view/234234234/candy5.jpg
+++++++++++++++++++++++++++++++++++++++++++++
...
...
And more content as above

Answer 1

这很管用，但在我看来，首先这个问题很奇怪…对不起。。。在

from urlparse import urlparse
import os.path

def read_links2(f):
    for line in f:
        line = line.strip()
        url = urlparse(line)
        if url.scheme in ('http', 'https'):
            key = (url.netloc, os.path.split(url.path)[1])
            yield (key, url)

links2 = dict(read_links2(open('f2.txt', 'U')))

for line in open('f1.txt', 'U'):
    line = line.rstrip()
    url = urlparse(line)
    if url.scheme in ('http', 'https'):
        key = (url.netloc, os.path.split(url.path)[1])
        if key in links2:
            print links2[key].geturl()
    else:
        print line

print 'More Link VIew:'

for url in links2.values():
    if url.netloc == 'kashi.com':
        print url.geturl()


print '+++++++++++++++++++'