On Nov 16, 5:03 pm, Steven D'Aprano <[EMAIL PROTECTED]
cybersource.com.au> wrote:
> On Fri, 16 Nov 2007 18:28:59 +0100, Bruno Desthuilliers wrote:
> >> Question 1:
>
> >> Given that the user of the API can choose to override foo() or not, how
> >> can I control the signature that they use?
>
> > W
Bruza wrote:
> On Nov 16, 4:47 pm, Bruza <[EMAIL PROTECTED]> wrote:
>> On Nov 16, 6:58 am, duncan smith <[EMAIL PROTECTED]>
>> wrote:
>>
>>
>>
>>> Bruza wrote:
I need to implement a "random selection" algorithm which takes a list
of [(obj, prob),...] as input. Each of the (obj, prob) repr
On Fri, 16 Nov 2007 16:47:16 -0800, Bruza wrote:
> I think I need to explain on the probability part: the "prob" is a
> relative likelihood that the object will be included in the output list.
> So, in my example input of
>
> items = [('Mary',30), ('John', 10), ('Tom', 45), ('Jane', 15)]
>
> S
How about this variation on your intial attempt?
# Untested!
def randomPick(n, items):
def pickOne():
index = random.randint(0, 99)
currentP = 0
for (obj, p) in items:
currentP += p
if currentP > index:
return obj
selection = set()
while len(selection) < n:
On Nov 15, 7:55 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> Does anyone know what the state of progress with interfaces for python
> (last I can see ishttp://www.python.org/dev/peps/pep-0245/)
>
> I would argue that interfaces/(similar feature) are necessary in any
> modern languag
>> While technically possible (using inspect.getargspec), trying to make
>> your code idiot-proof is a lost fight and a pure waste of time.
> Worse: it's actually counter-productive!
> The whole idea of being able to subclass a class means that the user
> should be able to override foo() *includi
Very interesting reply. I must ask a few questions, interleaved:
> If you mean that all instances of Class Canvas and Thing will share
> the *same* Stack, I think we can do it kind of like this:
What's the difference between "same Stack" and "same instance of Stack"? I
thought I knew what an insta
> I am curious as to why you want to go through such contortions. What
> do you gain.
for obj in list:
if obj has a foo() method:
a = something
b = figureitout ( )
object.foo ( a, b )
I am accepting objects of any class on a stack. Depending on their nature I
want to call certain methods
On Nov 16, 12:26 am, James Stroud <[EMAIL PROTECTED]> wrote:
> Chris M wrote:
> > On Nov 15, 8:55 pm, "[EMAIL PROTECTED]"
> > <[EMAIL PROTECTED]> wrote:
> >> Hi,
>
> >> Does anyone know what the state of progress with interfaces for python
> >> (last I can see ishttp://www.python.org/dev/peps/pep-0
Might anyone recommend a good code snippet manager to me?
Thank you so much!
--
===
WenSui Liu
(http://spaces.msn.com/statcompute/blog)
===
--
http://mail.python.org/mailman/listinfo/python-list
On Nov 15, 8:55 pm, "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> Does anyone know what the state of progress with interfaces for python
> (last I can see ishttp://www.python.org/dev/peps/pep-0245/)
No progress AFAIK for Python 2.x but Abstract Base Classes (ABCs) are
pretty close to interface
: "Thorsten Kampe" wrote:
> * Cope (Fri, 16 Nov 2007 06:09:31 -0800 (PST))
> > please tell me what is python.This group is so crowded.
>
> A Python is dangerous snake[1]. This group here mainly consists of
> misguided snake worshippers. You'd better run before they come to your
> place...
>
>>> a, b = [], []
>>> a.append(b)
>>> b.append(a)
>>> b in a
True
>>> a in a
Traceback (most recent call last):
File "", line 1, in
RuntimeError: maximum recursion depth exceeded in cmp
>>>
>>> a is a[0]
False
>>> a == a[0]
Traceback (most recent call last):
File "", line 1, in
RuntimeError:
On Nov 16, 2007 10:51 PM, Steven D'Aprano
<[EMAIL PROTECTED]> wrote:
> On Fri, 16 Nov 2007 19:02:25 +0200, Janne Härkönen
> wrote:
>
> >> X is an "old style" class. Most people probably shouldn't use old style
> >> classes, for various reasons. To use new style classes, you inherit
> >> from object
On Nov 16, 3:10�pm, Alan <[EMAIL PROTECTED]> wrote:
> On Nov 16, 8:29 pm, [EMAIL PROTECTED] wrote:
>
> > I still don't get it and I've been haunting this group for months...
>
> > Mike
>
> Go on then �...
>
> What ?
>
> The punchline, do the punchline
Punchline? I don't think there's a punchline
s
On Fri, 16 Nov 2007 21:13:17 -0800, Chris M wrote:
>> > Status:Rejected
>>
>> Thank you for pointing out the obvious. But *truly* helpful would be
>> insight into "While at some point I expect that Python will have
>> interfaces." Look for that sentence under the "rejected" part.
>>
>> James
>
(Mike) wrote:
> On Nov 16, 1:16 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> > On Nov 16, 8:14 am, Thorsten Kampe <[EMAIL PROTECTED]> wrote:
> >
> > > * Cope (Fri, 16 Nov 2007 06:09:31 -0800 (PST))
> >
> > > > please tell me what is python.This group is so crowded.
> >
> > > A Python is da
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