Luis M. González wrote:
> This is the closest we got so far to the intended result.
> If there was a way to enter attributes without quotes, it would be
> almost identical.
Ok, below is the Python code so that the following works::
class Person(Struct): "name birthday children"
Note that
* The "Person" name is not repeated
* The attribute names are not individually quoted
* It's two characters shorter than the Ruby code::
Person = Struct.new(:name, :birthday, :children)
Is that good enough? ;-)
STeVe
class InitFromSlots(type):
def __new__(meta, name, bases, bodydict):
slots = bodydict.get('__doc__', '').split()
bodydict.setdefault('__slots__', slots)
if slots and '__init__' not in bodydict:
parts = ['def __init__(self, %s):' % ', '.join(slots)]
for slot in slots:
parts.append(' self.%s = %s' % (slot, slot))
exec '\n'.join(parts) in bodydict
super_new = super(InitFromSlots, meta).__new__
return super_new(meta, name, bases, bodydict)
class Struct(object):
__metaclass__ = InitFromSlots
__slots__ = ()
def _items(self):
for name in self.__slots__:
yield name, getattr(self, name)
def __repr__(self):
args = ', '.join('%s=%r' % tup for tup in self._items())
return '%s(%s)' % (type(self).__name__, args)
def __iter__(self):
for name in self.__slots__:
yield getattr(self, name)
def __getstate__(self):
return dict(self._items())
def __setstate__(self, statedict):
self.__init__(**statedict)
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