Re: how to remove multiple occurrences of a string within a list?
How about:
list(frozenset(['0024', 'haha', '0024']))
[EMAIL PROTECTED] schrieb:
On Apr 4, 2:20 am, bahoo [EMAIL PROTECTED] wrote:
Hi,
I have a list like ['0024', 'haha', '0024']
and as output I want ['haha']
If I
myList.remove('0024')
then only the first instance of '0024' is removed.
It seems like regular expressions is the rescue, but I couldn't find
the right tool.
Thanks!
bahoo
how about this:
target = 0024
l = [0024, haha, 0024, 0024, sfs]
result = [ item for item in l if item != target]
result
['haha', 'sfs']
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Re: [Python-Dev] Python 3000 PEP: Postfix type declarations
Is this supposed to be a joke? First of April? Likely. -- http://mail.python.org/mailman/listinfo/python-list
How to delete PyGTK ComboBox entries?
Hello list! I need to repopulate PyGTK ComboBox on a regular basis. In order to do so I have to remove all the entries and then add the new ones. I tried to remove all entries like that: def clear_comboboxes(boxreference): try: while True: boxreference.remove_text(0) except: pass And then repopulate by iterating through the list of desired entries and calling ComboBox.append_text(text). It works, but is painfully slw! Is there a faster way to completely change the entries in a ComboBox, by using an all erase method or overwriting the container object? I haven't found anything with google, as the searches are too ambiguous to yield usable results. Thanks, Maël -- http://mail.python.org/mailman/listinfo/python-list
Re: How to delete PyGTK ComboBox entries?
Hej! model = combo_box.get_model() combo_box.set_model(None) model.clear() for entry in desired_entries: model.append([entry]) combo_box.set_model(model) model.append is essentially the same as combo_box.append_text. Setting the model to None before making changes to it speeds things at least in the case of tree views. I'm not sure if it does much with combo boxes. If you experince speed issues with combo boxes you're either doing something very wrong or you have so many entries that you ought to be using a tree view instead. Works like a charm. Thanks a lot! -- http://mail.python.org/mailman/listinfo/python-list
Re: c++ for python programmers
SAMS Teach yourself C in 21 days by Bradley L. Jones and Peter Aitken Learning C++ is not worth is in my opinion, since you can get the OOP power from Python and use C if you need speed... Thomas Nelson schrieb: I realize I'm approaching this backwards from the direction most people go, but does anyone know of a good c/c++ introduction for python programmers? Thanks, Thomas -- http://mail.python.org/mailman/listinfo/python-list
Re: How to access an absolute address through Python?
volcano schrieb: Can it be done, and if yes - how? Define address. Are you talking about URLs? File paths? Postal addresses? Memory addresses? Whatever addresses? I'm afraid the people on this list can't read your thoughts... -- http://mail.python.org/mailman/listinfo/python-list
Re: How to find all the same words in a text?
In order to find all the words in a text, you need to tokenize it first. The rest is a matter of calling the count method on the list of tokenized words. For tokenization look here: http://nltk.sourceforge.net/lite/doc/en/words.html A little bit of warning: depending on what exactly you need to do, the seemingly trivial taks of tokenizing a text can become quite complex. Enjoy, Maël Neil Cerutti schrieb: On 2007-02-10, Johny [EMAIL PROTECTED] wrote: I need to find all the same words in a text . What would be the best idea to do that? I used string.find but it does not work properly for the words. Let suppose I want to find a number 324 in the text '45 324 45324' there is only one occurrence of 324 word but string.find() finds 2 occurrences ( in 45324 too) Must I use regex? Thanks for help The first thing to do is to answer the question: What is a word? The second thing to do is to design some code that can find words in strings. The last thing to do is to search those actual words for the word you're looking for. -- http://mail.python.org/mailman/listinfo/python-list
Re: Best Free and Open Source Python IDE
Srikanth schrieb: Yes, All I need is a good IDE, I can't find something like Eclipse (JDT). Eclipse has a Python IDE plug-in but it's not that great. Please recommend. Thanks, Srikanth http://www.serpia.org/spe http://www.die-offenbachs.de/detlev/eric.html -- http://mail.python.org/mailman/listinfo/python-list
Re: postgres backup script and popen2
Use pexpect: http://pexpect.sourceforge.net/ flupke schrieb: Hi, i made a backup script to backup my postgres database. Problem is that it prompts for a password. It thought i could solve this by using popen2. I tested popen2 with dir (i'm on windows 2000, python 2.4.3) and it works. However when i try popen2 and my pg_dump command, it prompts for a password and I was under the impression that i was going to be able to dynamically communicate with the process. sin, sout = popen2(backup_command) sin.readline() # the password prompt sout.write(password) sin.readlines() How can i catch the password prompt and feed the password from my code? Thanks, Benedict -- http://mail.python.org/mailman/listinfo/python-list
Built-in datatypes speed
Hello Python-List I hope somebody can help me with this. I spent some time googling for an answer, but due to the nature of the problem lots of unrelevant stuff shows up. Anyway, I reimplemented parts of TigerSearch ( http://www.ims.uni-stuttgart.de/projekte/TIGER/TIGERSearch/ ) in Python. I am currently writing the paper that goes along with this reimplementation. Part of the paper deals with the differences/similarities in the original Java implementation and my reimplementation. In order to superficially evaluate differences in speed, I used this paper ( http://www.ubka.uni-karlsruhe.de/cgi-bin/psview?document=ira/2000/5format=1 ) as a reference. Now, this is not about speed differences between Java and Python, mind you, but about the speed built-in datatypes (dictionaries, lists etc.) run at. As far as I understood it from the articles and books I read, any method call from these objects run nearly at C-speed (I use this due to lack of a better term), since these parts are implemented in C. Now the question is: a) Is this true? b) Is there a correct term for C-speed and what is it? I would greatly appreciate an answer to that, since this has some impact on the argumentation in the paper. Thanks, Maël PS: For people interested in this reimplementation project: my code will be published here ( http://www.ling.su.se/dali/downloads/treealigner/index.htm ) as soon as it is integrated with the GUI and properly tested. The whole thing is GPLed... -- http://mail.python.org/mailman/listinfo/python-list
Re: (n)curses or tcl/tk?
As far as I know Windows does not support ncurses natively (using CygWin probably changes that). So go with Tkinter. Looks crappy but at least it should run on all major platforms... Hi All, Just learning Python - my first new language for about 18 years (I'm not a programmer ...). I'm writing a small utility to manipulate some text files (for the game VGA Planets, if you're interested: http:// www.phost.de). It's currently working, but it looks a bit ugly with raw_input and just basic text output. I have plans to expand the functions of the utility, and I want a simple GUI frontend. I assumed I'd end up with something that looks a bit like the Debian installer: a curses-driven thing with simple ascii boxes and buttons. But reading a bit more about Python makes me think that support for tcl/tk is much more developed than support for curses. So my question is, should I go to the trouble of learning how to make boxes and stuff using tcl/tk, or just go with ncurses as I imagined? Which is more portable? The basic idea is that this just runs on the largest possible variety of systems (er, assuming they have Python installed, of course). I use Debian mostly, but of course it needs to run on bog-standard Windows boxes. Does that tilt the balance in favour of curses or tcl/tk? Or should I just stick with ugly text? Thanks for all your help, CC (noob) -- http://mail.python.org/mailman/listinfo/python-list
