Python-сообщество

Dirs = ['dir1',['subdir1','subdir2'],'dir2','dir3',['subdir3',['subsubdir1',...]]]

<ul>
    <li>dir1</li>
    <li>
        <ul>
            <li>subdir1</li>
            <li>subdir2</li>
        </ul>
    </li>
    <li>dir2</li>........
</ul>

dirs = ['dir1', ['subdir1','subdir2'], 'dir2', 'dir3', ['subdir3', ['subsubdir1', 'subsubdir3', 'subsubdir3']]]

def walk(tree):
    print "<ul>"
    for i in tree:
        print "<li>"
        if type(i) is str:
            print i
        else:
            walk(i)
        print "</li>"
    print "</ul>"
    
    
walk(dirs)

class EvalDict:
    """usage: "___%(ech(a,'asd'))s _____" % evaldict.EvalDict() - interpolate strings"""
    def __init__(self, globals=None, locals=None):
        if globals is None:
            globals = sys._getframe(1).f_globals
        self.globals = globals
        if locals is None:
            locals = sys._getframe(1).f_locals
        self.locals = locals

    def __getitem__(self, key):
        key = key % self
        return eval(key, self.globals, self.locals)

def seprp(arg,sep=","):
    "make string from arg separated by sep and pepend sep"
    return reduce(lambda x, y: str(x)+sep+str(y), arg,"")

def sepr(arg,sep=","):
    "make string from arg separated by sep"
    if len(arg)==0:
    	return ""
    else:
        return reduce(lambda x, y: str(x)+sep+str(y), arg)

def seprnl(arg):
    return sepr(arg,"\n")

def ToText(ex):
       if type(ex) is type(""):
            return "<li>"+ ex+"</li>"
       else:
          return """
<ul>
%(seprnl(map(ToText,ex)))s
</ul>

""" %EvalDict()

data=['dir1',['subdir1','subdir2'],'dir2','dir3',['subdir3',['subsubdir1','asd']]]

print ToText(data)