class factory question

[Tim]

I am extending a parser and need to create many classes that are all subclassed from the same object (defined in an external library).  When my module is loaded I need all the classes to be created with a particular name but the behavior is all the same. Currently I have a bunch of lines like this:

    class Vspace(Base.Command): pass
    class Boldpath(Base.Command): pass

There are a bunch of lines like that.
Is there a better way? Something like
  
    newclasses = ['Vspace', 'Boldpath', ... ]
    for name in newclasses:
        tmp = type(name, (Base.Command,) {})
        tmp.__name__ = name

Is there a more pythonic way?
thanks,
--Tim