Re: Pytania początkującego cz. 1

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#28284

From: merlin
Date: Sun, 13 Nov 2011 18:49

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On 10 Lis, 17:48, hubert depesz lubaczewski <dep...@depesz.com> wrote:
> On 2011-11-10, Jordan Szubert <use...@joru.us.to> wrote:
>
> > d1=dict()
> > d1["a"]=dict()
> > di["a"]["b"]="123"
>
> hmm .. a nie ma jakiegoś shortcuta, gdybym na przykład uznał, że muszę
> koniecznie mieć 10 poziomów wgłąb?

Tak od kopa nie ma, ale zawsze możesz coś zrobić swojego:

>>> class ddict(dict):
...     def __getitem__(self, name):
...         if name not in self.__dict__:
...             self.__dict__[name] = ddict()
...         return self.__dict__[name]
...     def __setitem__(self, name, value):
...         self.__dict__[name] = value
...
>>> if __name__ == '__main__':
...     di = ddict()
...     di["a"]["b"]="123"
...     di["a"]["e"]["f"]="123f"
...     print di["a"]["b"]
...     print di["a"]["e"]["f"]
...
123
123f

metody __getitem__, __setitem__ to do dictow, list ... . Czyli jak
wkładasz coś do dicta/listy to wołana jest metoda __setitem__ itd

sa jeszcze metody __getattr__ / __getattribute__ , __setattr__ to do
atrybutów "depesz.attrybut" itp (opcjonalnie getattr(obiekt, attr,
default) i setattr(obiekt, attr, value).

--
Paweł Socha

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From: merlin <pawel.socha@gmail.com>
Newsgroups: pl.comp.lang.python
Subject: Re: Pytania początkującego cz. 1
Date: Sun, 13 Nov 2011 10:49:57 -0800 (PST)
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