[Alex Martelli]
> In your shoes, I would write a class whose instances hold three sets:
> -- the "master set" is what you originally read from the file
> -- the "added set" is the set of things you've added since then
> -- the "deleted set" is the set of things you've deleted since them
FWIW, I've
> I don't see where your SeaSet class is used.
>
Actually that is the point. According to the hotshot profile, the
problem code doesn't use the SeaSet implementation. Yet that same code
was running much faster earlier. I tried multiple time (2-3 times).
>From what I can fathom, nothing else changed
En Mon, 23 Apr 2007 02:17:49 -0300, Prateek <[EMAIL PROTECTED]> escribió:
> Oh dear god, I implemented this and it overall killed performance by
> about 50% - 100%. The same script (entering 3000 items) takes between
> 88 - 109s (it was running in 55s earlier).
>
> Here is the new Set implementati
Oh dear god, I implemented this and it overall killed performance by
about 50% - 100%. The same script (entering 3000 items) takes between
88 - 109s (it was running in 55s earlier).
Here is the new Set implementation:
class SeaSet(set):
__slots__ = ['master', 'added', 'deleted']
de
In article <[EMAIL PROTECTED]>,
Prateek <[EMAIL PROTECTED]> wrote:
>
>Thanks Alex, but we're actually implementing a (non-relational)
>database engine.
Why are you reinventing the wheel? Why not just implement your
functionality on top of an existing database as your backing store?
--
Aahz ([E
> > 2) Maintaining a copy wastes memory
> > 3) I don't have a good solution if I delete items from the set
> > (calculating the difference will return an empty set but I need to
> > actually delete stuff).
>
> (3) is easy -- the difference originalset-finalset is the set of things
> you have to de
On Apr 22, 11:09 am, Steven D'Aprano
<[EMAIL PROTECTED]> wrote:
> On Sat, 21 Apr 2007 20:13:44 -0700, Prateek wrote:
> > I have a bit of a specialized request.
>
> > I'm reading a table of strings (specifically fixed length 36 char
> > uuids generated via uuid.uuid4() in the standard library) from
On Sat, 21 Apr 2007 20:13:44 -0700, Prateek wrote:
> I have a bit of a specialized request.
>
> I'm reading a table of strings (specifically fixed length 36 char
> uuids generated via uuid.uuid4() in the standard library) from a file
> and creating a set out of it.
> Then my program is free to ma
Prateek <[EMAIL PROTECTED]> wrote:
> I have a bit of a specialized request.
>
> I'm reading a table of strings (specifically fixed length 36 char
> uuids generated via uuid.uuid4() in the standard library) from a file
> and creating a set out of it.
> Then my program is free to make whatever modi
