Metaclass and __slots__

[Peter Otten]

anabell at sh163.net wrote:

> Do I need to define my own metaclass in order to use __slots__?

Some things ar better tried than asked :-)

>>> class S(object):
...     __slots__ = "slots are bad".split()
...
>>> s = S()
>>> s.bad = "as you can get"
>>> s.good = "to know"
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'S' object has no attribute 'good'
>>>

Peter