Patrick Rutkowski wrote:
> I couldn't help but make an even better list in reference to this thread:
>
I'll go you one better :<))
I found the source of what I pulled that table from:
http://jaynes.colorado.edu/PythonGuidelines.html
Lee C
--
http://mail.python.org/mailman/listinfo/python-l
Chinook wrote whilst his head was elsewhere:
>>
>>So, where might I have found this construct.
>>
>>>>>ta = [5, 15, 12, 10, 9]
>>>>>nta = [tai+[10,-10][tai>=10]for tai in ta]
>>>>>nta
>>
>>[15, 5, 2, 0, 19]
&g
Thank you all for taking the time to consider and respond.
I had received the answer OL and responded with:
> Thank you, and your elaboration is well taken. I was just exploring here
> and the construct you noted is IMHO intuitively readable - at least for a
> simple expression and cond
I'm probably just getting languages mixed up, but I thought in my Python
readings over the last couple months that I had noticed an either/or
expression (as opposed to a bitwise or, or truth test). Being a curious
sort, I tried several variations of how a list comprehension *might* be
construc
On Wed, 29 Jun 2005 08:11:43 -0400, phil wrote
(in article <[EMAIL PROTECTED]>):
>
> Comes down to preference. Isn't it absolutely amazing how many
> choices we have. Remember the 70's - Cobol, ASM, C, Basic.CICS(shudder)
>
And please, no eulogies (especially for CICS) - being reminded of them
On Wed, 29 Jun 2005 00:18:24 -0400, Paul McGuire wrote
(in article <[EMAIL PROTECTED]>):
> Lee -
>
> Bruce Eckel's observation:
>
> "the above scaffolding of Obstacle, Player and GameElementFactory
> (which was translated from the Java version of this example) is
> unnecessary - it's only requir
On Tue, 28 Jun 2005 23:23:43 -0400, Kamilche wrote
(in article <[EMAIL PROTECTED]>):
> '''
> You might find this interesting. Note that the object creation in
> main() below could easily be read in from a text file instead,
> thus meeting your requirement of not knowing an item's class
> until run
Paul,
Going back over various material led to another question regarding your
comments.
> - I'm not keen on the coupling of forcing your A,B,etc. classes to
> inherit from MF. Especially in a duck-typing language like Python, it
> adds no value, the subclasses receive no default behavior from
Never mind.
>
> BTW: Is duck-typing a variation on duct-taping?
>
http://www.rubygarden.org/ruby?DuckTyping
http://en.wikipedia.org/wiki/Duck_typing
Lee C
--
http://mail.python.org/mailman/listinfo/python-list
On Tue, 28 Jun 2005 14:39:47 -0400, Nathan Pinno wrote
(in article <[EMAIL PROTECTED]>):
> Hi all,
>
> I need help figuring out how to fix my code. I'm using Python 2.2.3, and
> it keeps telling me invalid syntax in the if name == "Nathan" line. Here
is
> the code if you need it.
>
> #Thi
On Tue, 28 Jun 2005 10:22:59 -0400, Paul McGuire wrote
(in article <[EMAIL PROTECTED]>):
> Lee,
>
> Interesting idea, but I think the technique of "inherit from MF to
> automatically add class to the test chain" is a gimmick that wont
> scale.
>
> Here are some things to consider:
>
> - I'm not
On Tue, 28 Jun 2005 07:31:43 -0400, Chinook wrote
(in article <[EMAIL PROTECTED]>):
> [[ This message was both posted and mailed: see
>the 'To' and 'Newsgroups' headers for details. ]]
>
Sorry for the duplication. I'm trying Hogwasher on OS X and
Clarifications:
1) Truth test simplified after a %) by Peter Otten - thanks. In reality the
"testit" methods will all be quite different as you might imagine (as will
the "doit" methods).
2) A final subclass will always return True, so there will always be a valid
result.
[[ This message was both posted and mailed: see
the 'To' and 'Newsgroups' headers for details. ]]
Clarifications:
1) Truth test simplified after a %) by Peter Otten - thanks. In reality the
"testit" methods will all be quite different as you might imagine (as will
the "doit" methods).
2) A
On Tue, 28 Jun 2005 02:22:13 -0400, Peter Otten wrote
(in article <[EMAIL PROTECTED]>):
> Chinook wrote:
>
>> 3) Any other comments you might offer
>
>> if tv == 'relates to A':
>> return True
>> else:
>> return False
>
> Make that
&
OO refactoring trial
Following is a simple trial structure of a refactoring (top-down to OO)
learning exercise I'm doing. Whether you call it a Factory pattern, COR
pattern, or some hinze 57, I don't know what class to use till run time and
I'm trying to avoid a lengthy "if
On Sun, 26 Jun 2005 17:58:11 -0400, George Sakkis wrote
(in article <[EMAIL PROTECTED]>):
> "Paul McGuire" <[EMAIL PROTECTED]> wrote:
>
>> Lee C -
>>
>> Here is a technique for avoiding the if-elseif-elseif...-else method
>> for building objects. It is a modified form of ChainOfResponsibility
>
On Sun, 26 Jun 2005 01:06:08 -0400, Matt Hollingsworth wrote
(in article <[EMAIL PROTECTED]>):
> Hello,
>
> Very new to python, so a noob question. When I've written stuff in
> JavaScript or MEL in the past, I've always adopted the variable naming
> convention of using a $ as the first charact
On Sun, 26 Jun 2005 00:54:42 -0400, Bengt Richter wrote
(in article <[EMAIL PROTECTED]>):
> On Sat, 18 Jun 2005 03:52:28 -0400, Brian van den Broek
> <[EMAIL PROTECTED]> wrote:
> [...]
>>
>> Now, the same sort of behaviour where the "if type" testing has been
>> replaced with code more in keepi
On Sat, 25 Jun 2005 15:36:06 -0400, Philippe C. Martin wrote
(in article <[EMAIL PROTECTED]>):
> Hi,
>
> Not being from anglo-saxon heritage, I keep wondering why spammers always
> (or very often) get called 'trolls' ?
>
> I mean fantasy fiction has brought us many hugly beasts (goblin, warlock,
On Tue, 21 Jun 2005 09:56:27 -0400, Konstantin Veretennicov wrote
(in message <[EMAIL PROTECTED]>):
> On 6/21/05, Chinook <[EMAIL PROTECTED]> wrote:
>>
>> When I create the code objects though, it seems a couple different ways work
>> and I'm wondering which
Using code objects?
===
As an OO exercise I have a factory pattern that returns class objects that
each have an "action" method. ClassObj.action() in turn returns a code
object in my recursive process loop.
I create the code objects as a one time step outside my factory pattern
Xah said unto the world:
>oops... it is in the tutorial... sorry.
>
>though, where would one find it in the python reference?
i>.e. the function def with variable/default parameters.
>
>This is not a rhetorical question, but where would one start to look
>for it in the python ref?
>
>a language is
On Sat, 18 Jun 2005 14:00:35 -0400, Steven D'Aprano wrote
(in article <[EMAIL PROTECTED]>):
> On Sat, 18 Jun 2005 12:05:59 -0400, Peter Hansen wrote:
>
>> Furthermore, protecting you from someone else making money off a copy of
>> your program is basically what licenses are for, and if you have
On Sat, 18 Jun 2005 09:10:25 -0400, George Sakkis wrote
(in article <[EMAIL PROTECTED]>):
> "Chinook" wrote:
>
>> I understand what you are saying. The point I'm messing up my head with
>> though, is when the entity (tree node in my case or variable
On Sat, 18 Jun 2005 03:26:23 -0400, [EMAIL PROTECTED] wrote
(in article <[EMAIL PROTECTED]>):
> Hello, fellow programmers!
>
> I am sitting in front of a nice new PowerBook portable which has OS
> 10.4 installed. The Python.org web site says that Apple has shipped OS
> 10.4 with Python 2.3.5 ins
On Sat, 18 Jun 2005 03:52:28 -0400, Brian van den Broek wrote
(in article <[EMAIL PROTECTED]>):
> Chinook said unto the world upon 18/06/2005 02:17:
>> OO approach to decision sequence?
>> -
>>
>> In a recent thread (Cause for usi
OO approach to decision sequence?
-
In a recent thread (Cause for using objects?), Chris Smith replied with (in
part):
>If your table of photo data has several types of photos, and you find
>yourself saying
>
>if is_mugshot:
>#something
>
On Tue, 14 Jun 2005 12:39:09 -0400, Vero wrote
(in article <[EMAIL PROTECTED]>):
> Hi. My name is Veronica, I am a master student at UNAM. I am working on
> something related to Artificial Inteligence and I have been looking for the
> most appropriated programming language to implement my algo
On Mon, 13 Jun 2005 20:52:43 -0400, Gary Herron wrote
(in article <[EMAIL PROTECTED]>):
> Jan Danielsson wrote:
>
>> Hello all,
>>
>> I'm 100% sure that I saw an example which looked something like this
>> recently:
>>
>>
>>
> a=(1, 2, 3, 4, 5, 6)
> b=(2, 3, 6)
> a - b
>
On Sun, 12 Jun 2005 17:19:06 -0400, Peter Hansen wrote
(in article <[EMAIL PROTECTED]>):
> Steven D'Aprano wrote:
>> On Sat, 11 Jun 2005 19:47:58 -0500, Skip Montanaro wrote:
>>> If the case values are constants known to the compiler, it can generate
>>> O(1)
>>> code to take the correct branch.
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