Python脚本解析BitTorrent种子文件内容

有很多种子文件，有时候记不清里面都是什么东西，又不想一个一个的拖放到迅雷或BT软件里头看，

上网查了一下Python的脚本，自己也稍微修改了一下，代码如下，粘贴到文本编辑器中：

保存成py后缀的，直接运行

import re
def tokenize(text, match=re.compile("([idel])|(/d+):|(-?/d+)").match):
    i = 0
    while i < len(text):
        m = match(text, i)
        s = m.group(m.lastindex)
        i = m.end()
        if m.lastindex == 2:
            yield "s"
            yield text[i:i+int(s)]
            i = i + int(s)
        else:
            yield s
def decode_item(next, token):
    if token == "i":
        # integer: "i" value "e"
        data = int(next())
        if next() != "e":
            raise ValueError
    elif token == "s":
        # string: "s" value (virtual tokens)
        data = next()
    elif token == "l" or token == "d":
        # container: "l" (or "d") values "e"
        data = []
        tok = next()
        while tok != "e":
            data.append(decode_item(next, tok))
            tok = next()
        if token == "d":
            data = dict(zip(data[0::2], data[1::2]))
    else:
        raise ValueError
    return data
def decode(text):
    try:
        src = tokenize(text)
        data = decode_item(src.next, src.next())
        for token in src: # look for more tokens
            raise SyntaxError("trailing junk")
    except (AttributeError, ValueError, StopIteration):
        raise SyntaxError("syntax error")
    return data
if __name__ == "__main__":
#需要读取的文件名称放到这里
    data = open("Riko.Tachibana.torrent", "rb").read()
    torrent = decode(data)
    myfile = file("testit.txt", 'w')
    a = u'文件名称'.encode('gbk')
    b = u'文件大小'.encode('gbk')
    print "%s /t %s /n" % (a,b)
    for file in torrent["info"]["files"]:
        print "%s /t %d Mb " % ("/".join(file["path"]), file["length"]/1024/1024) 
        print "-----------------------------------------------------------------"

注意要保存成Utf-8格式的文件，不能使用ASCII编码格式保存，否则中文会乱码或无法编译

评论

1 楼 372029002 2015-11-04  

Traceback (most recent call last):
  File "analysis_torrent.py", line 55, in <module>
    torrent = decode(data)
  File "analysis_torrent.py", line 49, in decode
    raise SyntaxError("syntax error")
SyntaxError: syntax error

呃这是什么问题，是不是不适合现在的python 版本了