Python 2.7 如何拆分和删除url中不需要的字符串？

我有以下代码：

import urllib
from bs4 import BeautifulSoup

f = open('log1.txt', 'w')

url ='http://www.brothersoft.com/tamil-font-513607.html'
pageUrl = urllib.urlopen(url)
soup = BeautifulSoup(pageUrl)

for a in soup.select("div.class1.coLeft a[href]"):
    try:
        suburl = ('http://www.brothersoft.com'+a['href']).encode('utf-8','replace')
        f.write ('http://www.brothersoft.com'+a['href']+'\n')
    except:
        print 'cannot read'
        f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n')

        pass

    content = urllib.urlopen(suburl)
    soup = BeautifulSoup(content)
    for a in soup.select("div.Sever1.coLeft a[href]"):
        try:
            suburl2 = ('http://www.brothersoft.com'+a['href']).encode('utf-8','replace')
            f.write ('http://www.brothersoft.com'+a['href']+'\n')
        except:
            print 'cannot read'
            f.write('cannot read:'+'http://www.brothersoft.com'+a['href']+'\n')

            pass

        content = urllib.urlopen(suburl2)
        soup = BeautifulSoup(content)
        try:
            suburl3 = soup.find('body')['onload'][10:-2]
            print suburl3.replace("&" + url.split('&')[-1],"")
            #f.write (soup.find('body')['onload'][10:-2]+'\n')
        except:
            print 'cannot read'
            f.write(soup.find('body')['onload'][10:-2]+'\n')

            pass
f.close()

我希望输出应如下所示：

试试这个：

url = "http://www.brothersoft.com/d.php?soft_id=159403&url=http%3A%2F%2Ffiles.brothersoft.com%2Fmp3_audio%2Fmidi_tools%2FSynthFontSetup.exe&name=SynthFont"
print url.replace("&" + url.split('&')[-1],"")

输出：

http://www.brothersoft.com/d.php?soft_id=159403&url=http%3A%2F%2Ffiles.brothersoft.com%2Fmp3_audio%2Fmidi_tools%2FSynthFontSetup.exe

http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Fusfiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Fusfiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe

---

您的代码（有更改）：

输出：

http://www.brothersoft.com/d.php?soft_id=159403&url=http%3A%2F%2Ffiles.brothersoft.com%2Fmp3_audio%2Fmidi_tools%2FSynthFontSetup.exe

http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Ffiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Fusfiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe&name=Tamil%20Font
http://www.brothersoft.com/d.php?soft_id=513607&url=http%3A%2F%2Fusfiles.brothersoft.com%2Fphotograph_graphics%2Ffont_tools%2Fkeyman.exe

---

这就是你想要的吗？

我编辑了我的问题。我尝试了你的代码，但没有改变。你的代码输出的URL字符串与你想要的完全不同。换一下，让我看看你需要什么是的，这就是我想要的。你在哪里换的？我看不到。您必须将

url

更改为

suburl3

两次（替换之前和之后），您上次尝试时的意思是：？