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Thu Apr 19 18:11:07 EDT 2001 · http://mail.python.org/pipermail/python-list/2001-April/074713.html

In article <vQpD6.47756$J%5.15806884 at news2.rdc2.tx.home.com>, "Rainer
Deyke" <root at rainerdeyke.com> wrote:

> "Alex Martelli" <aleaxit at yahoo.com> wrote in message
> news:9bkvi30uf8 at news1.newsguy.com...
>> "Rainer Deyke" <root at rainerdeyke.com> wrote in message
>> news:OLlD6.46125$J%5.15304817 at news2.rdc2.tx.home.com... How do you stop
>> a class from having subclasses in Python?
> 
> def f():
>   class C:
>     pass
>   C()

>>> from klass import klass
>>> def get_atuple(self):
	return self.atuple

>>> def init(self, tup):
	self.atuple = tup

>>> def set_atuple(self, tup):
	self.atuple = tup

>>> TupleHaver = klass({}, {'__init__':init, 'get_atuple':get_atuple,
       'set_atuple':set_atuple}) t = TupleHaver((1,2,'hi'))
>>> t.get_atuple()
(1, 2, 'hi')
>>> t.set_atuple(('la la', 'la'))
>>> t.get_atuple()
('la la', 'la')

### part of klass.py

def klass(static_var_dict, methdict):
    def make(*initv, **initk):
        inst = lambda: None
        m = {}
        for k in methdict.keys():
            m[k] = fako(methdict[k], inst)
        inst.func_dict = m
        inst.func_dict.update(static_var_dict) m.get('__init__', lambda\
               *a, **k: None)(*initv, **initk) 
        return inst
    return make

def fako(func, inst):
    return lambda *a, **k: func( *((inst,)+a), **k)

-- 
Barnabas T. Rumjuggler
Thou hast been called, O Sleep!  The friend of woe,
But 'tis the happy who have called thee so.
 -- Robert Southey

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Deprecate self