On 2006-03-26, Andrew Gwozdziewycz <[EMAIL PROTECTED]> wrote:
> If you want something that won't get in your way, you should really
> use /bin/ed. It's probably simpler to use then searching the archives.
> /bin/ed will also run in cygwin for windows.
>
>>> Can one of you say to me what's the bes
List,
I'd like to do the following with Tkinter's Frame() object:
1. Display a collection of pack()-able objects. Easy. Done. I hold
the objects in a dictionary, mostly so that the owning program can refer
to them uniformly.
2. Whenever the collection is added to or deleted from, re-pack() th
On 2006-02-11, Kenneth Xie <[EMAIL PROTECTED]> wrote:
> att, thx.
A lot of the ideas discussed in Effective C++ et al are things that
Python does for us already. C++ works at a much lower layer of
abstraction and you need to deal explicitly with freestore for any
nontrivial class.
EC++ is mostly
On 2006-02-11, Alex Martelli <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>> Problem:
>>
>> You have a list of unknown length, such as this: list =
>> [X,X,X,O,O,O,O]. You want to extract all and only the X's. You know
>> the X's are all up front and you know that
On 2006-02-08, News <[EMAIL PROTECTED]> wrote:
> I am new in using Python
>
> Anyone know how to implement breadth first search using Python? Can Python
> create list dynamically, I want to implement a program which will read data
> from a file and store each line into a list, is this possible?
>
On 2006-02-08, Ben Wilson <[EMAIL PROTECTED]> wrote:
> "But the point is, the current situation is not newbie-friendly (I can
> tell, I am a newbie)"
>
> I will agree to that, as I consider myself still new. _But_, it's a
> stumbling stone only briefly. Get enough nagging error messages, and
> you
On 2006-01-31, bruno at modulix <[EMAIL PROTECTED]> wrote:
> See other answers in this thread for how to solve the UnboundLocalError
> problem.
>
> Now about your *real* problem - which is nothing new -, you may want to
> read about some known solutions:
>
> http://en.wikipedia.org/wiki/Singleton_p
On 2006-01-31, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
>
> def ExpensiveObject():
> global _expensiveObject
> if _expensiveObject is None:
> _expensiveObject = "A VERY Expensive object"
> print "CREATED VERY EXPENSIVE OBJECT"
> return _expensiveO
On 2006-01-31, Farshid Lashkari <[EMAIL PROTECTED]> wrote:
> You need to declare _expensiveObject as global inside your function.
> Whenever you assign something to a variable that resides in the global
> scope inside a function, you need to declare it as global at the
> beginning of the functio
List:
I've a module that's not doing what I expect. My guess is that I don't
quite understand the scoping rules the way I should.
I have an object that's costly to create. My thought was to create it
at the module level like this:
# expensive Object Module
_expensiveObject = None
def Expensiv
On 2006-01-28, Charles Krug <[EMAIL PROTECTED]> wrote:
> On 2006-01-28, Peter Otten <[EMAIL PROTECTED]> wrote:
>> Charles Krug wrote:
>>
>>> Is there a way to detect that I'm running the the PyWin interpreter so
>>> that I can bypass its
On 2006-01-28, Peter Otten <[EMAIL PROTECTED]> wrote:
> Charles Krug wrote:
>
>> Is there a way to detect that I'm running the the PyWin interpreter so
>> that I can bypass its raw_input behavior?
>
> You could test
>
> if pywin_specific_module in sys.mod
On 2006-01-28, Steven D'Aprano <[EMAIL PROTECTED]> wrote:
>>
>> As the comment says, when I run this under Python Win, I get an (pretty
>> sure) Tkinter interface, not a command line, and I don't get my
>> EOFError when I expect to.
>
> When do you expect to get an EOFError? The only way I get an
Here's the deal:
I've a dead-simple command-line program I'm using to test things that I
can't (for various reasons) test in the IDE.
Here's a do-nothing subset that shows the idea:
# insanely simply command interpreter
import Commands
import sys
myPrompt = '$> '
# Raw Input doesn't QUITE do w
On 2006-01-16, Alex Martelli <[EMAIL PROTECTED]> wrote:
> Charles Krug <[EMAIL PROTECTED]> wrote:
>...
>> I'm trying to create a list of all of C's subclasses:
>
> There's a class method for that very purpose:
>
>>>> class C(obje
List:
I have this:
# classC.py
class C(object): pass
class D(C): pass
class E(C): pass
def CSubclasses():
for name in dir(): pass
I'm trying to create a list of all of C's subclasses:
import classC
print C
aList = []
for name in dir(classC):
print name,
try:
if issubcla
On 2006-01-11, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
> Charles Krug wrote:
>
>> What I'd like is to do something like this:
>>
>> factoryFile = sys.argv[1] # we assume that argv[1] implements a
>> # correct ThingMaker interface.
List:
I have an idea for an abstract factory that parameterizes the factory
with an input module.
The general ideom can be expressed thus:
class ThingFactory(object):
def CreateThisThing() : return ThisThing()
def CreateThatThing() : return ThatThing()
def CreateTheOtherThing() : ret
On Mon, 10 Oct 2005 15:46:34 -0500, Terry Hancock
<[EMAIL PROTECTED]> wrote:
> On Saturday 08 October 2005 04:35 am, Steve Holden wrote:
>> I must have been working at NASA at the time; they are well known for
>> embiggening prices.
>
> Not nearly as much as the DoD, from what I hear.
>
> Truthf
On Mon, 10 Oct 2005 11:21:18 -0700, Donn Cave <[EMAIL PROTECTED]>
wrote:
>> Iron-
>> Python). is it still an interpreter if it generates machine code?
>
> Is what an interpreter?
>
> I am not very well acquainted with these technologies, but it sounds
> like variations on the implementation of a
On 19 Sep 2005 00:02:34 -0700, malv <[EMAIL PROTECTED]> wrote:
> Simple case:
> In this list, how to find all occurences of intervals of n adjacent
> indexes having at least one list-member with a value between given
> limits.
> Visualizing the list as a two-dimensional curve, this is like
> horizo
On Mon, 19 Sep 2005 12:10:04 GMT, Chris <[EMAIL PROTECTED]> wrote:
> Thanks to everyone for your help!
>
> That fit the need perfectly.
>
> In article <[EMAIL PROTECTED]>,
> [EMAIL PROTECTED] says...
>> Is there a way to make python create a list of Mondays for a given year?
>>
>> For example,
On Fri, 08 Jul 2005 22:43:55 +0300, Elmo Mäntynen <[EMAIL PROTECTED]>
wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
>> Import Error: no module named PP2E.launchmodes
>>
>> However if I copy launchmodes.py into my work directory, it imports
>> successfully.
>>
>> Both "Examples" abov
List:
I'm trying to use the example files from Programming Python, 2nd Ed.
I've copied them into c:\Python24\Examples\PP2E.
Launching any of the examples programs by themselves seems to work
spiffily.
Using regedit, I appended "c:\Python24\Examples\PP2E" to Pythonpath
from the immediate window
On Sat, 25 Jun 2005 14:50:48 GMT, Brian <[EMAIL PROTECTED]> wrote:
> Do Re Mi chel La Si Do wrote:
>> rather... super troll
>
> 100% Agreed.
>
> Can anyone say, "This looks like spam... Feels like spam... and is about
> as useful here in the Python forums as spam -- therfore my conclusion is
On Tue, 21 Jun 2005 12:05:25 +0200, Magnus Lycka <[EMAIL PROTECTED]> wrote:
> Remi Villatel wrote:
>> while True:
>> some(code)
>> if final_condition is True:
>> break
>> #
>> #
>>
>> What I don't find so "nice" is to have to build an infinite loop only to
>> break it.
>
> Th
On Mon, 20 Jun 2005 23:42:21 -0800, EP <[EMAIL PROTECTED]> wrote:
> Oren suggested:
>
>> How about using the filesystem as a database? For the number of records
>> you describe it may work surprisingly well. A bonus is that the
>> database is easy to manage manually.
>
> I tried this for one appl
On 20 Jun 2005 15:51:07 GMT, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Peter Hansen wrote:
>
>>> The target of the problems (my daughter) would prefer that the thousands
>>> be delimited. Is there a string function that does this?
>>
>> You refer to something like putting a comma between groups
List:
First, I'm reading that aString.split() is depreciated. What's the
current best practice for this?
Or am I mistaking that:
myWords = split(aString, aChar)
is depreciated but
myWords = aString.split(aChgar)
is not?
Second question, I've written a script that generates a LaTeX source
c
On Mon, 20 Jun 2005 06:36:42 GMT, Ron Adam <[EMAIL PROTECTED]> wrote:
> Ron Adam wrote:
>
>> You might be able to use a dictionary of tuples.
>>
>> call_obj = {(type_obj1,0):obj1a,
>> (type_obj1,0):obj1b,
>> (type_boj2,1):obj2a,
>> (type_obj2,1):obj2b,
>>
On 20 May 2005 15:35:10 -0700, [EMAIL PROTECTED] <[EMAIL PROTECTED]>
wrote:
> Is there a better way to code nested for loops as far as performance is
> concerned.
>
> what better way can we write to improve the speed.
> for example:
> N=1
> for i in range(N):
>for j in range(N):
>d
On 5 May 2005 10:37:00 -0700, mrstephengross <[EMAIL PROTECTED]> wrote:
> Hi all... How can I find out the number of significant digits (to the
> right of the decimal place, that is) in a double? At least, I *think*
> that's what I'm asking for. For instance:
>
> 0.103 --> 3
> 0.0103 --> 4
> 0.001
List:
I'm playing with some image algorithms and one of the examples discusses
fingerprint comparison.
The NIST has fingerprint sample files for download, in NIST IHead
format. Has anyone built a reader for that format?
Thanks
Charles
--
http://mail.python.org/mailman/listinfo/python-list
"Anthra Norell" <[EMAIL PROTECTED]> writes:
>
>> Hi,
>>
> The following are differences of solar declinations from one day to
> the next, (never mind the unit). Considering the inertia of a
> planet, any progress of (apparent) celestial motion over regular
> time intervals has to be highly regula
On 28 Apr 2005 10:34:44 -0700, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
> Hey yall,
> I'm new to Python and I love it. Now I can get most of the topics
> covered with the Python tutorials I've read but the one thats just
> stumping me is Object Orientation. I can't get the grasp of it. Does
> a
On Wed, 27 Apr 2005 20:56:07 -0500, John Hunter
<[EMAIL PROTECTED]> wrote:
>>>>>> "Charles" == Charles Krug <[EMAIL PROTECTED]> writes:
>
>Charles> List: I'm trying to us pylab to see what I'm doing with
>Charles> some DSP
List:
I'm trying to us pylab to see what I'm doing with some DSP algorithms,
in case my posts about convolution and ffts weren't giving it away.
I've been using pylab's plot function, but I'm finding it a bit
cumbersome.
It works, but if I switch from the interactive window to the plot window
an
On Mon, 25 Apr 2005 21:30:18 -0500, Jaime Wyant
<[EMAIL PROTECTED]> wrote:
> Well, if you're a c++ programmer,
Well, my forte is embedded systems and device controls . . .
> then you've probably ran into
> `functors' at one time or another. You can emulate it by making a
> python object that is
I've a function that needs to maintain an ordered sequence between
calls.
In C or C++, I'd declare the pointer (or collection object) static at
the function scope.
What's the Pythonic way to do this?
Is there a better solution than putting the sequence at module scope?
Thanks.
--
http://mai
On Thu, 21 Apr 2005 13:13:17 -0400, David M. Cooke
<[EMAIL PROTECTED]> wrote:
> Charles Krug <[EMAIL PROTECTED]> writes:
>
>> List:
>>
>> Is there a Python package with Convolution and related methods?
>>
>> I'm working on modeling some DSP p
List:
I'm working on some methods that operate on (mathematical) vectors as
in:
def Convolution(x, y)
"""Returns a list containing the convolution of vectors x and y"""
Is there any way to determine at runtime that x and y are iterible
collections?
Do I *coughs* simply *coughs* trap the excepti
List:
Is there a Python package with Convolution and related methods?
I'm working on modeling some DSP processes in Python. I've rolled one
up, but don't feel much like reinventing the wheel, especially if
there's already something like "Insanely Efficient FFT for Python"
already.
Thanks
Char
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