On 2006-08-27, Jacob Hallen [EMAIL PROTECTED] wrote:
In article [EMAIL PROTECTED],
Patrick Maupin [EMAIL PROTECTED] wrote:
Unfortunately there is a side effect to slots. They change the behaviour of
the objects that have slots in a way that can be abused by control freaks
and static typing
Patrick Maupin [EMAIL PROTECTED] writes on 26 Aug 2006 12:51:44 -0700:
...
The only
problem I personally know of is that the __slots__ aren't inherited,
__slots__ *ARE* inherited, although the rules may be a bit
complex.
class B(object):
... __slots__ = ('f1', 'f2',)
...
class C(B): pass
Dieter Maurer wrote:
Patrick Maupin [EMAIL PROTECTED] writes on 26 Aug 2006 12:51:44 -0700:
...
The only
problem I personally know of is that the __slots__ aren't inherited,
__slots__ *ARE* inherited, although the rules may be a bit
complex.
Yes, I didn't write that correctly. What's
In article [EMAIL PROTECTED],
Patrick Maupin [EMAIL PROTECTED] wrote:
I didn't actually sense any dander on your part, so it was probably a
bit unfortunate that I chose to respond to that particular message. I
do (rightly or wrongly) sense some dander on Aahz's part, and this was
the second or
Jacob Hallen wrote:
Patrick Maupin [EMAIL PROTECTED] wrote:
Also, as I noted, I _do_ use them on occasion, so if there really _are_
potential pitfalls there, I would like to understand exactly what they
are, so my ears perk up whenever I notice a __slots__ discussion, but
so far I have been
[EMAIL PROTECTED] wrote:
Aahz Taking a look at __slots__ is fine as long as you don't actually
Aahz use them.
Gabriel Why?
http://groups.google.com/group/comp.lang.python/browse_thread/thread/451ad25f9c648404/f4ac2dfde32b16fd?lnk=stq=Python+__slots__+aahzrnum=2#f4ac2dfde32b16fd
Skip
Aahz Taking a look at __slots__ is fine as long as you don't actually
Aahz use them.
Gabriel Why?
Skip
http://groups.google.com/group/comp.lang.python/browse_thread/thread/451ad25f9c648404/f4ac2dfde32b16fd?lnk=stq=Python+__slots__+aahzrnum=2#f4ac2dfde32b16fd
Patrick The
[EMAIL PROTECTED] napisał(a):
That said, It's not mentioned on the Python3.0 page of the wiki:
http://wiki.python.org/moin/Python3.0
or in PEP 3000:
http://www.python.org/dev/peps/pep-3000/
and I see no discussion about it in the Python 3000 mailing list archives:
[EMAIL PROTECTED] wrote:
Aahz Taking a look at __slots__ is fine as long as you don't actually
Aahz use them.
Gabriel Why?
Skip
Jarek Zgoda wrote:
Having that said, should we hope __slots__ would disappear in (some)
future (tomorrow?!, in next 10 microseconds?!)? Please, don't left us
hopeless.
Are you saying you _do_ hope that __slots__ disappear? Why?
Regards,
Pat
--
Patrick Maupin wrote:
The only assertion that was made explicitly enough to be testable came
about in a followup to Aahz's original post, only AFTER someone asked
what the side-effects associated with __slots__ were. Aahz responded:
The main one is that inheritance becomes difficult to
In article [EMAIL PROTECTED],
[EMAIL PROTECTED] wrote:
Andre Meyer:
Is the test meaningful and are you surprised by the results?
I am, actually, because I would have assumed that attribute access
with an object should be faster because lookup can be precompiled.
The results seem okay. Python
At Friday 25/8/2006 11:34, Aahz wrote:
The results seem okay. Python is a dynamic language, object attributes
(and methods, etc) are kept inside a dict, where you can add and remove
them when you like. So using a dict is faster.
You can also take a look at __slots__
Taking a look at __slots__
Aahz Taking a look at __slots__ is fine as long as you don't actually
Aahz use them.
Gabriel Why?
http://groups.google.com/group/comp.lang.python/browse_thread/thread/451ad25f9c648404/f4ac2dfde32b16fd?lnk=stq=Python+__slots__+aahzrnum=2#f4ac2dfde32b16fd
Skip
--
Aahz wrote:
Taking a look at __slots__ is fine as long as you don't actually use them.
I remember the recent discussion about such matters... but I don't
understand its dangers fully still.
I assume __slots__ may be removed in Python 3.0, but maybe experts
need it now an then. Or maybe a experts
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