En Wed, 24 Jun 2009 23:42:03 -0300, Carl Banks <pavlovevide...@gmail.com>
escribió:
On Jun 24, 2:39 am, Norberto Lopes <shelika.v...@gmail.com> wrote:
What do you think of dictionaries having a self lookup in their
declaration?
Be able to do this:
a = {"foo" : "foo1", "bar" : a["foo"]} # or with another syntax
instead of:
a = { "foo" : "foo1" }
a["bar"] = a["foo"]
If you don't mind abusing Python syntax, you can do it using something
like this:
def DictMaker(name,bases,dct):
dct.pop('__metaclass__',None)
return dct
class a:
__metaclass__ = DictMaker
home = "/home/test"
user1 = home + "/user1"
user2 = home + "/user2"
python_dev = user1 + "/py-dev"
Certainly an abuse of syntax, but it's a nice trick!
--
Gabriel Genellina
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