Hello,
I've always been using the has_key() method to test if a dictionary
contains a certain key. Recently I tried the same using 'in', e.g.
d = { ... }
if k in d:
...
and found that it seems to perform a lot better when lots of key-tests
are to be performed. I also noticed that has_key() i
Bjoern Schliessmann wrote:
> Peter Otten wrote:
>
>> No, 'k in d' is equivalent to 'd.has_key(k)', only with less
>> (constant) overhead for the function call.
>
> Ah, thx. Thought the "x in d" syntax might search in d.values() too.
I don't think it does
Python 2.4.3 (#1, Nov 19 2006, 13:16:36
[EMAIL PROTECTED] wrote:
> I will try later with python 2.5 under linux, but as far as I can see,
> it's the same problem under my windows python 2.5
> After reading this document :
> http://evanjones.ca/memoryallocator/python-memory.pdf
>
> I think it's because list or dictionnaries are used by t
Hello,
Simon Pickles wrote:
> Can someone help me leave the murky c++ world and enter shiny pythonland?
Welcome!
> I have a problem with importing and global variables, here's my code:
>
> [...]
>
> When run, I come unstuck here:
>
>self.clientSocket, self.clientAddress = network.
Hello,
The python library docs read in section 2.1
(http://docs.python.org/lib/built-in-funcs.html):
"
...
property( [fget[, fset[, fdel[, doc)
Return a property attribute for new-style classes (classes that
derive from object).
...
"
But in 2.4 at least properties also seem
Anthony Irwin wrote:
> Hi All,
>
> I am currently trying to decide between using python or java and have a
> few quick questions about python that you may be able to help with.
>
> #1 Does python have something like javas .jar packages. A jar file
> contains all the program files and you can ex
Paul Melis wrote:
> Hi,
>
> mosscliffe wrote:
>
>> I am looking for a simple split function to create a list of entries
>> from a string which contains quoted elements. Like in 'google'
>> search.
>>
>> eg string = 'bob john "j
Hi,
mosscliffe wrote:
> I am looking for a simple split function to create a list of entries
> from a string which contains quoted elements. Like in 'google'
> search.
>
> eg string = 'bob john "johnny cash" 234 june'
>
> and I want to have a list of ['bob', 'john, 'johnny cash', '234',
> 'jun
Hello,
[EMAIL PROTECTED] wrote:
> I've some troubles getting my memory freed by python, how can I force
> it to release the memory ?
> I've tried del and gc.collect() with no success.
[...]
> The same problem here with a simple file.readlines()
> #Python interpreter memory usage : 1.1 Mb private
On Oct 10, 8:23 am, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> > However, it is not true that += "always leads to a rebinding of a to the
> > result of the operation +". The + operator for lists creates a new list.
> > += for lists does an in-place modification:
>
> It still is true.
>
> a +=
On Oct 17, 10:00 am, Duncan Booth <[EMAIL PROTECTED]>
wrote:
> [EMAIL PROTECTED] wrote:
> > On Oct 10, 8:23 am, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
>
> >> rebinds a. Period. Which is the _essential_ thing in my post, because
> >> this rebinding semantics are what confused the OP.
>
> > D
On Oct 17, 11:08 am, Duncan Booth <[EMAIL PROTECTED]>
wrote:
> [EMAIL PROTECTED] wrote:
> > Curious, do you have the relevant section in the docs that describes
> > this behaviour?
>
> Yes, but mostly by implication. In section 3.4.7 of the docs, the sentence
> before the one you quoted says:
>
>
On Oct 17, 2:39 pm, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote:
>
> > Simply not to introduce special cases I guess. If you write ``x.a +=
> > b`` then `x.a` will be rebound whether an `a.__iadd__()` exists or
> > not. Otherwise one would get inter
On Oct 17, 3:20 pm, Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote:
> On Wed, 17 Oct 2007 05:57:50 -0700, Paul Melis wrote:
> > On Oct 17, 2:39 pm, Duncan Booth <[EMAIL PROTECTED]> wrote:
> >> >>> class C(object):
>
> >>
On Oct 17, 3:41 pm, Paul Melis <[EMAIL PROTECTED]> wrote:
> On Oct 17, 3:20 pm, Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote:
>
>
>
> > On Wed, 17 Oct 2007 05:57:50 -0700, Paul Melis wrote:
> > > On Oct 17, 2:39 pm, Duncan Booth <
[EMAIL PROTECTED] wrote:
Why is the \ backslash character frowned upon? Can I still use it in
Python 3.0 to achieve the same thing it was designed to do?
Yes, it's still valid to use in a script.
See http://docs.python.org/dev/3.0/whatsnew/3.0.html for the big changes
coming with 3.0
Paul
TheSaint wrote:
On 19:06, lunedì 02 giugno 2008 Chris wrote:
actions= ('print', 'sum', 'divide', 'myfunction')
parameters=(5, 'nothing',5.63, object)
8< 8<
getattr(...)
getattr(object, name[, default]) -> value
8< 8<
for nn in actions:
func = getattr(cp, nn)
if callable(func)
Stodge wrote:
> Yet another SWIG question (YASQ!).
>
> I'm having a problem with using an abstract base class. When
> generating the Python bindings, SWIG thinks that all the concrete
> classes that derive from this abstract class are abstract too and
> won't create the correct constructor.
>
> A
Hi,
Diez B. Roggisch wrote:
Dennis Lee Bieber schrieb:
On Mon, 21 Apr 2008 19:05:46 -0400, [EMAIL PROTECTED] declaimed the
following in comp.lang.python:
I thought one of the major features of Python 2.5 was its embedded
SQLite engine.
No, just the inclusion of the adapter became stand
azrael wrote:
Which big aplications are written in python. I see its development,
But i can't come up with a big name. I know that there are a lot of
companys using python, but is there anythong big written only in
python. I want him to fuck of with his perl once and for all time
Not really "bi
Paul Boddie wrote:
On 25 Apr, 03:05, Alexandre Gillet <[EMAIL PROTECTED]> wrote:
I am trying to build python-2.4.5 on Centos 5.1, which is a virtual
machine running with xen.
I am not able to build python. The compilation crash with the following:
gcc -pthread -c -DNDEBUG -g -O3 -Wall -Wstric
Instead of manually trying to get all the options to gcc correct you
might want to look at using distutils for compiling your extension.
See the SWIG documentation, section 30.2.2
(http://www.swig.org/Doc1.3/Python.html#Python_nn6)
Paul
Soren wrote:
Hi,
I went through the SWIG tutorial for t
Julien wrote:
Hi,
I'm fairly new in Python and I haven't used the regular expressions
enough to be able to achieve what I want.
I'd like to select terms in a string, so I can then do a search in my
database.
query = ' " some words" with and "withoutquotes " '
p = re.compile(magic_reg
On 1 mei, 22:54, Peter Pearson <[EMAIL PROTECTED]> wrote:
> I'm trying to get started with pyvtk, the Python interface
> to the Visualization Toolkit,
It looks like you're using this package:
http://cens.ioc.ee/projects/pyvtk/
These are not the official Python bindings to VTK, but seem to be an
a
Peter Pearson wrote:
On Thu, 01 May 2008 16:45:51 -0500, Robert Kern <[EMAIL PROTECTED]> wrote:
pyvtk is not the Python interface to VTK. It is for the
creation of VTK files. The vtk(1) command is a Tcl shell
with the VTK libraries loaded (I believe). Read the VTK
documentation for information
In (the recently accepted) PEP 370 it says
"Current Python versions don't have a unified way to install packages
into the home directory of a user (except for Mac Framework builds).
Users are either forced to ask the system administrator to install or
update a package for them or to use one of
[EMAIL PROTECTED] wrote:
Here is my code for a letter frequency counter. It seems bloated to
me and any suggestions of what would be a better way (keep in my mind
I'm a beginner) would be greatly appreciated..
Not bad for a beginner I think :)
def valsort(x):
res = []
for key
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