which "dictionary with attribute-style access"?
Aahz
aahz at pythoncraft.com
Sat Oct 17 18:32:45 EDT 2009
In article <mailman.1614.1255818306.2807.python-list at python.org>,
Terry Reedy <tjreedy at udel.edu> wrote:
>Aahz wrote:
>> In article <hb01po$s5v$1 at news.eternal-september.org>,
>> Andreas Balogh <baloand at gmail.com> wrote:
>>>
>>> My question to the Python specialists: which one is the most correct?
>>> Are there restrictions with regards to pickling or copy()?
>>> Which one should I choose?
>>
>> What's your goal? I'd probably do the dirt simple myself:
>>
>> class AttrDict(dict):
>> def __getattr__(self, attr):
>> if attr in self:
>> return self[attr]
>> else:
>> raise AttributeError
>
>Why the double lookup? Harking to another thread on using exceptions,
>
>try:
> return self[attr]
>except KeyError:
> raise AttributeError(attr)
For this purpose, it's almost entirely a stylistic difference; I happen
to prefer using the test, but the other way is fine, too.
--
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
"To me vi is Zen. To use vi is to practice zen. Every command is a
koan. Profound to the user, unintelligible to the uninitiated. You
discover truth everytime you use it." --reddy at lion.austin.ibm.com
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