Python Js styled dict

jsdict

# copy from `https://github.com/damonchen/onion/blob/master/onion/utils/_dict.py`
#       and `https://github.com/damonchen/onion/blob/master/onion/utils/tools.py`

class JsDict(dict):

    def __getattr__(self, key):
        try:
            v = self[key]
        except:
            v = None
        return v

    def __setattr__(self, key, value):
        self[key] = value

def list2jsdict(v):
    result = [value2jsdict(t) for t in v]
    
    if isinstance(v, tuple):
        return tuple(result)
    else:
        return result

def dict2jsdict(v):
    j = JsDict()
    for key, value in v.iteritems():
        j[key] = value2jsdict(value) 

    return j

def value2jsdict(v):
    if isinstance(v, (tuple, list)):
        return list2jsdict(v)
    elif isinstance(v, dict):
        return dict2jsdict(v)
    else:
        return v