Explicit is better than implicit ... 
so sure, you could make it more concise:
   
    def __init__(self,a,b,c):
        for k,v in locals().items():
            if k != "self":
                 setattr(self,k,v)


The better question is: should you?

... that said if you want a named tuple I would recommend using a namedtuple (remember tuples have certain conditions attached to them) ... perhaps you want an OrderedDict or even just a dict ...