Re: Python interpreter speed

Tim Roberts wrote: > The Python you're thinking of (CPython) is compiled to an intermediate > language, which is then interpreted by an interpreter loop, somewhat > remeniscent of Forth. It takes more cycles per instruction to run that > interpreter loop than it does to run the machine language, b

Re: sorting two corresponding lists?

Esmail wrote: > I wonder if someone could help me with sorting two corresponding lists. > > For instance the first list contains some items, and the second list > contains their value (higher is better) > > items = [apple, car, town, phone] > values = [5, 2, 7, 1] > > I would like to sort the '

Re: Failure of running a second script in same interactive session

On Mon, 20 Apr 2009 23:52:39 -0500, pdlemper wrote: > When I open python.exe to the console or "interactive window" and > import/run a script I am frustrated trying to import and run another > script in the same session. eg I run the script alphasort once fine : import alphasort

Re: iterate to make multiple variables?

On Apr 19, 11:11 pm, Tairic wrote: > Hi, I'm somewhat new to programming and especially to python. Today I > was attempting to make a sudoku-solver, and I wanted to put numbers > into sets call box1, box2, ... box9, so that I could check new values > against the boxes > > I ended up declaring the

Re: iterate to make multiple variables?

On Apr 19, 11:11 pm, Tairic wrote: > Hi, I'm somewhat new to programming and especially to python. Today I > was attempting to make a sudoku-solver, and I wanted to put numbers > into sets call box1, box2, ... box9, so that I could check new values > against the boxes > > I ended up declaring the

Re: generating random tuples in python

per wrote: > >i am generating a list of random tuples of numbers between 0 and 1 >using the rand() function, as follows: >... >how can i maximize the amount of "numeric distance" between the >elements of this list, but still make sure that all the tuples >have numbers strictly between 0 and 1 (in

Re: Python interpreter speed

Ryniek90 wrote: > >Standard Python interpreter's implementation is written in C language. C >code while compilation, is compilled into machine code (the fastest >code). Python code is compiled into into byte-code which is also some >sort of fast machine code. So why Python interpreter is slower

Re: What is a real name, round 668

> Understood. In this case, I *am* sure (enough to make the assumption > publicly) that the poster is not using their real name in their ‘From’ > field, and was — politely, I hope — requesting that to be rectified. > Oh, how I find this attitude simultaneously absurd and offensive-- the only reas

Failure of running a second script in same interactive session

When I open python.exe to the console or "interactive window" and import/run a script I am frustrated trying to import and run another script in the same session. eg I run the script alphasort once fine : >>> import alphasort < it runs > When its finished I then try to run the same

Re: The Python standard library and PEP8

On Mon, 20 Apr 2009 21:30:20 -0700, Aahz wrote: > In article > <37d39064-b73d-4e47-9e1e-d07c14bfc...@z8g2000prd.googlegroups.com>, > alex23 wrote: >>On Apr 21, 1:18 pm, Tim Wintle wrote: >>> >>> There was some suggestion about introducing synonyms that followed >>> PEP8 and introducing deprecat

Re: The Python standard library and PEP8

In article <37d39064-b73d-4e47-9e1e-d07c14bfc...@z8g2000prd.googlegroups.com>, alex23 wrote: >On Apr 21, 1:18 pm, Tim Wintle wrote: >> >> There was some suggestion about introducing synonyms that followed PEP8 >> and introducing deprecation warnings as you suggested, but I can't >> remember the

Re: generating random tuples in python

On Apr 20, 11:08 pm, Steven D'Aprano wrote: > On Mon, 20 Apr 2009 11:39:35 -0700, per wrote: > > hi all, > > > i am generating a list of random tuples of numbers between 0 and 1 using > > the rand() function, as follows: > > > for i in range(0, n): > >   rand_tuple = (rand(), rand(), rand()) mylis

Re: rectangles, or cavases, or ... ? under Tkinter

On Apr 20, 5:29 pm, Alan G Isaac wrote: I need to display many (e.e., 2000) small squares whose colors are udpated each time a computation is complete. One approach is to put rectangles on a single canvas. Another approach is to put many canvases in a single frame. Another approach is to create

Re: efficiently checking for string.maketrans conflicts?

Saketh wrote: Hi everyone: I'm using "translation" in the sense of string.maketrans here. I am trying to efficiently compare if two string translations "conflict" -- that is, either they differently translate the same letter, or they translate two different letters to the same one. ... Anoth

Re: and [True,True] --> [True, True]?????

On Apr 20, 6:54 pm, Gerhard Häring wrote: > Peter Otten wrote: > > bdb112 wrote: > > >> Your explanation of Boolean ops on lists was clear. > >> It leads to some intriguing results: > > >> bool([False]) > >> --> True > > >> I wonder if python 3 changes any of this? > > > No. Tests like > > > if it

Re: The Python standard library and PEP8

On Apr 21, 1:18 pm, Tim Wintle wrote: > There was some suggestion about introducing synonyms that followed PEP8 > and introducing deprecation warnings as you suggested, but I can't > remember the outcome. I'd suggest checking the dev archives. What about the possibility of offering an additional,

Re: Removing items from a list simultaneously

On Mon, 20 Apr 2009 20:09:12 -0700, Ross wrote: > Is there a quick way to simultaneously pop multiple items from a list? > For instance if i had the list a = [1,2,3,4,5,6,7] and I wanted to > return every odd index into a new list, my output would be new_list = > [2,4,6] or similarly if I wanted t

Re: The Python standard library and PEP8

On Sun, 2009-04-19 at 18:43 +0200, Emmanuel Surleau wrote: > Hi there, > > Exploring the Python standard library, I was surprised to see that several > packages (ConfigParser, logging...) use mixed case for methods all over the > place. I assume that they were written back when the Python stylin

Re: Passing all extra commandline arguments to python program, Optparse raises exception

On Sun, 19 Apr 2009 14:45:45 +0100, David Stanek wrote: On Thu, Apr 16, 2009 at 10:05 AM, sapsi wrote: Hello, Im using optparse and python 2.6 to parse some options, my commandline looks like prog [options] start|stop extra-args-i-will-pas-on The options are --b --c --d The extra options

Re: The Python standard library and PEP8

On Mon, 20 Apr 2009 06:18:17 -0700, Scott David Daniels wrote: > Steven D'Aprano wrote: >> ... There's an accepted definition for "objected oriented programming >> language": a language which provides "objects", which are constructs >> encapsulating both data and routines to operate on that data i

Re: Python and GMP.

On Apr 20, 11:39 am, Benjamin Peterson wrote: >   gmail.com> writes: > > > > > There are reasons why Python not used the GMP library for implementing > > its long type? > > Basically, GMP only becomes faster when the numbers are huge. Python 3.1 is significantly faster than Python 2.x on 64-bit p

Removing items from a list simultaneously

Is there a quick way to simultaneously pop multiple items from a list? For instance if i had the list a = [1,2,3,4,5,6,7] and I wanted to return every odd index into a new list, my output would be new_list = [2,4,6] or similarly if I wanted to return each index that was one away from the midpoint i

Re: generating random tuples in python

On Mon, 20 Apr 2009 11:39:35 -0700, per wrote: > hi all, > > i am generating a list of random tuples of numbers between 0 and 1 using > the rand() function, as follows: > > for i in range(0, n): > rand_tuple = (rand(), rand(), rand()) mylist.append(rand_tuple) > > when i generate this list, s

Re: and [True,True] --> [True, True]?????

On Mon, 20 Apr 2009 15:53:41 +, Peter Pearson wrote: > Like Gerhard, I prefer the construction that explicitly says, "This is a > list, and this is what I'll do if it's not empty." To me, and I suspect > to a great many programmers, "if x:" does *not* mean "if x is not > empty", it means "if

Re: is PyCodec_Encode() API returns New reference or Borrowed reference

rahul gmail.com> writes: > > Is PyCodec_Encode(PyObject *object,char *encoding,char *errors ) > returns New reference or Borrowed reference New -- http://mail.python.org/mailman/listinfo/python-list

Re: and [True,True] --> [True, True]?????

On Tue, 21 Apr 2009 00:32:44 +0200, Gerhard Häring wrote: > The reason I preferred len(), btw., was only that len() make it clear > that the argument is a sequence. > > Maybe I was just too annoyed by lots of Python code I read that looked > like this: > > def foo(x, y, z): > if x: >

Re: Is there a programming language that is combination of PythonandBasic?

On Sun, 19 Apr 2009 19:25:25 +0100, Scott David Daniels wrote: Chris Jones wrote: ... Intellectually, assembler programming is the less demanding since its level of abstraction does not go any further than mapping a few binary numbers to a small set of usually well-chosen mnemonics. Unless

Re: and [True,True] --> [True, True]?????

On Mon, 20 Apr 2009 15:13:15 -0500, Grant Edwards wrote: > I fail to see the difference between "length greater than 0" and "list > is not empty". They are, by definition, the same thing, aren't they? For built-in lists, but not necessarily for arbitrary list-like sequences. There's also the p

Re: getter and setter and list appends

On Mon, 20 Apr 2009 18:18:39 +0100, dasacc22 wrote: Ah thank you for clarifying, I did confuse instance and class attributes from creating the list in the class def. I actually just spiffed up that class to represent a portion of a much larger class that needs getter and setter for children. Do

Re: Python and GMP.

Benjamin Peterson writes: > Basically, GMP only becomes faster when the numbers are huge. In my experience GMP is about 4x faster than Python longs with 1024 bit numbers, a very common cryptographic size. -- http://mail.python.org/mailman/listinfo/python-list

Re: What is a real name, round 668

a...@pythoncraft.com (Aahz) writes: > In article <87hc0iltal@benfinney.id.au>, > Ben Finney wrote: > >A rough working definition [of “real name”]: The name you would use > >to introduce yourself if you met me for the first time in a similar > >context but face to face. > > That's fine by me

Re: Self-intro and possible offtopic: creation of group integrating translators and experts in the fields they translate

In article <44db189a-8e34-4c6f-bc4a-4843d2329...@z9g2000yqi.googlegroups.com>, vocabulo wrote: > >PS: I've also created a yahoo group by the name texchange, with the >same purpose. The reason I created one group at google's and another >at yahoo's is because people tend to polarize between these

is PyCodec_Encode() API returns New reference or Borrowed reference

Is PyCodec_Encode(PyObject *object,char *encoding,char *errors ) returns New reference or Borrowed reference -- http://mail.python.org/mailman/listinfo/python-list

Re: What is a real name, round 668

In article <87hc0iltal@benfinney.id.au>, Ben Finney wrote: >a...@pythoncraft.com (Aahz) writes: >> In article <87tz4jl66c@benfinney.id.au>, >> Ben Finney wrote: >>> >>>(Is there hope that you could set your From field using your real >>>name so we can discuss with a real person instead

Re: What is a real name, round 668

a...@pythoncraft.com (Aahz) writes: > In article <87tz4jl66c@benfinney.id.au>, > Ben Finney wrote: > > > >(Is there hope that you could set your From field using your real > >name so we can discuss with a real person instead of a pseudonym?) > > Could you define what a "real name" is? > >

Re: the correct way to install python packages as non root user in non default path

On Apr 21, 8:32 am, News123 wrote: > I'm having an Ubuntu host, but want to (experimentally) > install some modules, which are newer than the Ubuntu ones > (distros lag always a little behind and some tools need newer versions.) > > What would be a clean way to do this? I think virtualenv will he

A Special Thanks

I'm one of those that tries to get an outline of the project and then puts in code as things become clear. Once the basics are working reasonably I go back and organize the thing for maintainability. Then finish flushing it out. It is the one stage I dread the most. Why not organize it up fr

Re: rectangles, or cavases, or ... ?

On 4/20/2009 7:43 PM John McMonagle apparently wrote: Approach 1: put many rectangles on a single canvas This is the most flexible approach. It allows you to take advantage of Tkinter canvas tag bindings to interact with individual or groups of canvas items. It also allows you to use some pre

Re: Handling NameError in a list gracefully

Jesse Aldridge wrote: from my_paths import * def get_selected_paths(): return [home, desktop, project1, project2] --- So I have a function like this which returns a list containing a bunch of variables. The real list has around 50 entries. Occasionally I'll remove a variable from my_

Re: and [True,True] --> [True, True]?????

Gerhard Häring wrote: Martin v. Löwis wrote: Are they widespread? I haven't noticed, yet. I prefer to write it explicitly: if len(lst) > 0: I prefer to test explicitly for the truth value of the list. I don't want to test whether the length of the list is greater than 0 (in fact, I don't care

Re: rectangles, or cavases, or ... ?

Alan G Isaac wrote: > I need to display many (e.e., 2000) small squares whose colors are udpated > each time a computation is complete. > > One approach is to put rectangles on a single canvas. > Another approach is to put many canvases in a single frame. > Another approach is to create an image e

Re: rectangles, or cavases, or ... ?

On 4/20/2009 5:59 PM Scott David Daniels apparently wrote: You should have said, but I'll guess you are using Tkinter. Yes, I should have, sorry. You are right, I'm using Tkinter. I'd put the rectangles on a canvas, myself. That's my current choice, but I'm not seeing into what the trade-

Re: and [True,True] --> [True, True]?????

> > No. Tests like > > > if items: > >    ... > > > to verify that items is a non-empty list are a widespread idiom in Python. > > They rely on the behaviour you observe. > > Are they widespread? I haven't noticed, yet. It's the preferred form (as recommended by PEP 8). Raymond -- http://mail.py

the correct way to install python packages as non root user in non default path

Hi, I'm having an Ubuntu host, but want to (experimentally) install some modules, which are newer than the Ubuntu ones (distros lag always a little behind and some tools need newer versions.) What would be a clean way to do this? I want to be sure, that any 'special hacks' on my host are cleanly

Re: and [True,True] --> [True, True]?????

Martin v. Löwis wrote: >> Are they widespread? I haven't noticed, yet. >> >> I prefer to write it explicitly: >> >> if len(lst) > 0: > > I prefer to test explicitly for the truth value of the > list. I don't want to test whether the length of the list > is greater than 0 (in fact, I don't care abo

Re: Programming in Python with a view to extending in C at a later date.

dug.armad...@googlemail.com wrote: Hi, Say you set out to program in Python knowing that you will be converting parts of it into C ( or maybe C++) at a later date, but you do not know which parts. I presume because you intend to wait for profile results. Good. Of course, you might even find y

Re: Programming in Python with a view to extending in C at a later date.

Lawson English wrote: Daniel Stutzbach wrote: On Mon, Apr 20, 2009 at 1:57 PM, dug.armad...@googlemail.com > wrote: Say you set out to program in Python knowing that you will be converting parts of it into C ( or

Re: Programming in Python with a view to extending in C at a later date.

Daniel Stutzbach wrote: On Mon, Apr 20, 2009 at 1:57 PM, dug.armad...@googlemail.com > wrote: Say you set out to program in Python knowing that you will be converting parts of it into C ( or maybe C++) at a later d

Re: Python and GMP.

On Apr 20, 10:36 pm, Mark Dickinson wrote: > The other major issue is licensing:  as far as I recall, the > various discussions never came to a conclusion about the legal > implications of using GMP. It took me a while to find it... See the thread starting at http://mail.python.org/pipermail/py

Re: rectangles, or cavases, or ... ?

Alan G Isaac wrote: I need to display many (e.e., 2000) small squares whose colors are udpated each time a computation is complete. One approach is to put rectangles on a single canvas. Another approach is to put many canvases in a single frame. Another approach is to create an image each iterat

Re: rectangles, or cavases, or ... ?

On Apr 20, 5:29 pm, Alan G Isaac wrote: > I need to display many (e.e., 2000) small squares whose colors are udpated > each time a computation is complete. > > One approach is to put rectangles on a single canvas. > Another approach is to put many canvases in a single frame. > Another approach is

Re: Programming in Python with a view to extending in C at a later date.

dug.armad...@googlemail.com wrote: Say you set out to program in Python knowing that you will be converting parts of it into C ( or maybe C++) at a later date, but you do not know which parts. Can you give any general Python structure / syntax advice that if implemented from the start, will make

Re: Python and GMP.

On Apr 20, 7:39 pm, Benjamin Peterson wrote: >   gmail.com> writes: > > > > > There are reasons why Python not used the GMP library for implementing > > its long type? > > Basically, GMP only becomes faster when the numbers are huge. That was true for one particular attempt in this direction (by

Re: Programming in Python with a view to extending in C at a later date.

On Mon, Apr 20, 2009 at 1:57 PM, dug.armad...@googlemail.com < dug.armad...@googlemail.com> wrote: > Say you set out to program in Python knowing that you will be > converting parts of it into C ( or maybe C++) at a later date, but you > do not know which parts. > I often use Python for rapid pro

rectangles, or cavases, or ... ?

I need to display many (e.e., 2000) small squares whose colors are udpated each time a computation is complete. One approach is to put rectangles on a single canvas. Another approach is to put many canvases in a single frame. Another approach is to create an image each iteration, which is placed

Re: Handling NameError in a list gracefully

On Apr 20, 3:46 pm, Chris Rebert wrote: > On Mon, Apr 20, 2009 at 1:36 PM, Jesse Aldridge > wrote: > > from my_paths import * > > > def get_selected_paths(): > >    return [home, desktop, project1, project2] > > > --- > > > So I have a function like this which returns a list containing a bun

Re: Handling NameError in a list gracefully

Nevermind, I figured it out right after I clicked the send button :\ from my_paths import * def get_selected_paths(): return [globals()[s] for s in ["home", "desktop", "project1", "project2"] if s in globals()] -- http://mail.python.org/mailman/listinfo/python-list

Re: Handling NameError in a list gracefully

On Mon, Apr 20, 2009 at 1:36 PM, Jesse Aldridge wrote: > from my_paths import * > > def get_selected_paths(): >    return [home, desktop, project1, project2] > > --- > > So I have a function like this which returns a list containing a bunch > of variables.  The real list has around 50 entries.

Re: color propagation in tkinter

Alan G Isaac wrote: On Apr 20, 12:35 pm, Alan G Isaac wrote: If I want to propagate changes to a font, I can just use a named font. What if I want to propagate color changes? (E.g., a change in background color for a number of widgets.) On 4/20/2009 1:59 PM Mike Driscoll apparently wrote:

Handling NameError in a list gracefully

from my_paths import * def get_selected_paths(): return [home, desktop, project1, project2] --- So I have a function like this which returns a list containing a bunch of variables. The real list has around 50 entries. Occasionally I'll remove a variable from my_paths and cause get_sele

Re: and [True,True] --> [True, True]?????

>> I prefer to write it explicitly: >> >> if len(lst) > 0: >>... > > At the very least, IMO you should write this as > > if len(lst): > ... > > There's no reason to be explicit about the numeric comparison. I think in the mind-set that dislikes relying on boolean conversion of lists, re

Re: and [True,True] --> [True, True]?????

>> I don't want to test whether the length of the list >> is greater than 0 [...] - I want to know whether the >> list is empty (or not empty). > > I fail to see the difference between "length greater than 0" > and "list is not empty". They are, by definition, the same > thing, aren't they? Yes,

Re: polar plots, clockwise, north

enric...@gmail.com wrote: Thanks, I had tried this earlier but by rotating the data in this fashion, it has problems connecting the endpoints between 0 and 360 and tries to go counter clockwise around. I am then left with an extra circle in all my plots where it attempts to connect the points be

Re: and [True,True] --> [True, True]?????

On 2009-04-20, Martin v. L?wis wrote: > I don't want to test whether the length of the list > is greater than 0 [...] - I want to know whether the > list is empty (or not empty). I fail to see the difference between "length greater than 0" and "list is not empty". They are, by definition, the s

Re: and [True,True] --> [True, True]?????

In article , =?ISO-8859-1?Q?Gerhard_H=E4ring?= wrote: > >I prefer to write it explicitly: > >if len(lst) > 0: >... At the very least, IMO you should write this as if len(lst): ... There's no reason to be explicit about the numeric comparison. -- Aahz (a...@pythoncraft.com) <

Re: and [True,True] --> [True, True]?????

> Are they widespread? I haven't noticed, yet. > > I prefer to write it explicitly: > > if len(lst) > 0: I prefer to test explicitly for the truth value of the list. I don't want to test whether the length of the list is greater than 0 (in fact, I don't care about the length property of the list

Re: Interest in generational GC for Python

> I'm lost there. Isn't CPython using reference counting (i.e updating the > object's state at each reference creation/deletion, and deleting the > objects as soon as they have no more references to them) ? It seemed to > me that generational GC only applied to periodic GCs, like tracing > garbage

Re: generating random tuples in python

per writes: > hi all, > > i am generating a list of random tuples of numbers between 0 and 1 > using the rand() function, as follows: > > for i in range(0, n): > rand_tuple = (rand(), rand(), rand()) > mylist.append(rand_tuple) > > when i generate this list, some of the random tuples might be

Re: Python interpreter speed

On Mon, 2009-04-20 at 20:12 +0100, Tim Wintle wrote: > > I can't remember Java properly, but... > > Firstly, speed will depend on what you're writing. I dont' actually know > how much slower python is, but I'm sure there are some things that run > faster in python. > I know many instences which

Re: sorting two corresponding lists?

Esmail writes: > Hello all, > > I wonder if someone could help me with sorting two corresponding lists. > > For instance the first list contains some items, and the second list > contains their value (higher is better) > > items = [apple, car, town, phone] > values = [5, 2, 7, 1] > > I would like

Re: QT , Wxwidgets are not just UI framework ?

On Apr 20, 12:54 am, Phil Thompson wrote: > On Sun, 19 Apr 2009 20:32:23 -0700 (PDT), Old Listener > > > > wrote: > > On Apr 17, 10:20 am, Phil Thompson > > wrote: > >> On Fri, 17 Apr 2009 07:04:40 -0700 (PDT), Deep_Feelings > > >> wrote: > >> > On Apr 17, 1:52 pm, "Diez B. Roggisch" wrote: >

Re: generating random tuples in python

per: > in other words i want the list of random numbers to be arbitrarily > different (which is why i am using rand()) but as different from other > tuples in the list as possible. This is more or less the problem of packing n equal spheres in a cube. There is a lot of literature on this. You can

Re: color propagation in tkinter

On Apr 20, 12:35 pm, Alan G Isaac wrote: If I want to propagate changes to a font, I can just use a named font. What if I want to propagate color changes? (E.g., a change in background color for a number of widgets.) On 4/20/2009 1:59 PM Mike Driscoll apparently wrote: One way would be to

Re: Python interpreter speed

On Sun, 2009-04-19 at 18:11 +0200, Ryniek90 wrote: > Hi. > > Standard Python interpreter's implementation is written in C language. C > code while compilation, is compilled into machine code (the fastest > code). Python code is compiled into into byte-code which is also some > sort of fast mach

Re: getter and setter and list appends

dasacc22 wrote: Hi, I seem to be having a problem with a list being share across multiple instantiations of it and dont quite understand why this is happening. Class attributes are shared by all instances. My class looks like this, class Widget(object): _parent = None _children = []

Re: The Python standard library and PEP8

On Mon, Apr 20, 2009 at 9:31 AM, George Sakkis wrote: > On Apr 19, 6:01 pm, "Martin P. Hellwig" > > > Besides, calling Python Object-Orientated is a bit of an insult :-). I > > would say that Python is Ego-Orientated, it allows me to do what I want. > > +1 QOTW > So true. +1 QOTW -- -Brandon S

Re: and [True,True] --> [True, True]?????

AggieDan04 a écrit : On Apr 20, 2:03 am, bdb112 wrote: Is there any obvious reason why [False,True] and [True,True] gives [True, True] Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] X and Y == (Y if X else X) X or Y == (X if X else Y) [False, True] is t

Programming in Python with a view to extending in C at a later date.

Hi, Say you set out to program in Python knowing that you will be converting parts of it into C ( or maybe C++) at a later date, but you do not know which parts. Can you give any general Python structure / syntax advice that if implemented from the start, will make this future task less painful.

generating random tuples in python

hi all, i am generating a list of random tuples of numbers between 0 and 1 using the rand() function, as follows: for i in range(0, n): rand_tuple = (rand(), rand(), rand()) mylist.append(rand_tuple) when i generate this list, some of the random tuples might be very close to each other, nume

Re: Python and GMP.

gmail.com> writes: > > There are reasons why Python not used the GMP library for implementing > its long type? Basically, GMP only becomes faster when the numbers are huge. -- http://mail.python.org/mailman/listinfo/python-list

Re: Interest in generational GC for Python

Martin v. Löwis a écrit : Is there any interest in generational garbage collection in Python these days ? Anyone working on it ? This is the time machine at work: the garbage collector in CPython *is* generational (with three generations). Regards, Martin -- http://mail.python.org/mailma

Re: iterate to make multiple variables?

Mark Tolonen a écrit : "Tairic" wrote in message news:95ea7bdf-2ae8-4e5e-a613-37169bb36...@w35g2000prg.googlegroups.com... Hi, I'm somewhat new to programming and especially to python. Today I was attempting to make a sudoku-solver, and I wanted to put numbers into sets call box1, box2, ...

Re: efficiently checking for string.maketrans conflicts?

Saketh wrote: > Hi everyone: > > I'm using "translation" in the sense of string.maketrans here. > > I am trying to efficiently compare if two string translations > "conflict" -- that is, either they differently translate the same > letter, or they translate two different letters to the same one.

Re: best "void" return of a member function

Andreas Otto wrote: Hi, I'm writing a native language binding for a library. http://libmsgque.sourceforge.net/ Every native method called by PYTHON have to return a PyObject* even if the function itself does not return anything. I have 2 possibilities for return a PyObject*

Re: color propagation in tkinter

On Apr 20, 12:35 pm, Alan G Isaac wrote: > I'm a tkinter novice. > > If I want to propagate changes to a font, > I can just use a named font. > > What if I want to propagate color changes? > (E.g., a change in background color for > a number of widgets.) > > Thanks, > Alan Isaac One way would be

color propagation in tkinter

I'm a tkinter novice. If I want to propagate changes to a font, I can just use a named font. What if I want to propagate color changes? (E.g., a change in background color for a number of widgets.) Thanks, Alan Isaac -- http://mail.python.org/mailman/listinfo/python-list

Re: getter and setter and list appends

Ah thank you for clarifying, I did confuse instance and class attributes from creating the list in the class def. I actually just spiffed up that class to represent a portion of a much larger class that needs getter and setter for children. Doing as you said fixed my problem, heres the code as refe

Re: getter and setter and list appends

dasacc22 wrote: > Hi, > > I seem to be having a problem with a list being share across multiple > instantiations of it and dont quite understand why this is happening. > > My class looks like this, > > class Widget(object): > _parent = None > _children = [] > > def __init__(self, p

Re: sorting two corresponding lists?

Thanks Luis, more code for me to study and learn from. Esmail Luis Alberto Zarrabeitia Gomez wrote: I've used this sometimes: -- http://mail.python.org/mailman/listinfo/python-list

getter and setter and list appends

Hi, I seem to be having a problem with a list being share across multiple instantiations of it and dont quite understand why this is happening. My class looks like this, class Widget(object): _parent = None _children = [] def __init__(self, parent=None): self.parent = parent

Re: sorting two corresponding lists?

Saketh wrote: Why not use a dictionary instead of two lists? Then you can sort the dictionary by value -- e.g. thanks for the suggestion. I am not sure this is quite suitable for my application (the example I provided was extremely simplified), but this is a useful technique to know and has b

Re: sorting two corresponding lists?

Hi Diez, Thanks for this, I had seen zip() before but had no idea really what it does, this will serve as good motivation to find out more. I'm amazed at what this language can do (and the helpfulness of the people on the list here). Best, Esmail Diez B. Roggisch wrote: items = zip(*sorted(z

Re: The Python standard library and PEP8

On Monday 20 April 2009 10:55:19 Steven D'Aprano wrote: > On Mon, 20 Apr 2009 08:05:01 +0200, Emmanuel Surleau wrote: > > On Monday 20 April 2009 01:48:04 Steven D'Aprano wrote: > >> It also depends on whether you see the length of a data structure as a > >> property of the data, or the result of a

Re: print as a function in 2.5 ?

Hi, On Sun, Apr 19, 2009 at 7:13 PM, Stef Mientki wrote: > hello, > > For several reasons I still use Python version 2.5. > I understand that the print-statement will be replaced in Python version > 3.0. > > At the moment I want to extend the print statement with an optional > traceback. > So I'v

Re: Python and GMP.

On Mon, 20 Apr 2009 18:24:07 +0200, "Diez B. Roggisch" wrote: alessiogiovanni.bar...@gmail.com wrote: There are reasons why Python not used the GMP library for implementing its long type? Any reason it should? I don't know GMP (only that it exists), but adding binary dependencies is always

Re: sorting two corresponding lists?

Quoting Esmail : > items = [apple, car, town, phone] > values = [5, 2, 7, 1] > > I would like to sort the 'items' list based on the 'values' list so > that I end up with the following two list: > > items = [town, apple, car, phone] > values = [7, 5, 2, 1] I've used this sometimes: === [unte

efficiently checking for string.maketrans conflicts?

Hi everyone: I'm using "translation" in the sense of string.maketrans here. I am trying to efficiently compare if two string translations "conflict" -- that is, either they differently translate the same letter, or they translate two different letters to the same one. Here are some examples:

Re: out of memory with processing module

On Apr 20, 9:18 am, alessiogiovanni.bar...@gmail.com wrote: > On 20 Apr, 17:03, Brian wrote: > > > > > I'm using the third-party "processing" module in Python 2.5, which may > > have become the "multiprocessing" module in Python 2.6, to speed up > > the execution of a computation that takes over a

Re: out of memory with processing module

On Apr 20, 9:18 am, alessiogiovanni.bar...@gmail.com wrote: > On 20 Apr, 17:03, Brian wrote: > > > > > I'm using the third-party "processing" module in Python 2.5, which may > > have become the "multiprocessing" module in Python 2.6, to speed up > > the execution of a computation that takes over a

Re: [ANN] pyxser-0.2r --- Python XML Serialization

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Stefan Behnel wrote: > Daniel Molina Wegener wrote: >> Sorry, it appears that I've misunderstand your question. By /unicode >> objects/ I mean /python unicode objects/ aka /python unicode strings/. > > Yes, that's exactly what I'm talking about. Ma

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