Hi all!
I am pretty new to Python, so please excuse me if I am missing
something. Lately, I've been playing with decorators and I am a bit
confused about some behavior. Here is the code that puzzles me:
in python shell:
def function():
pass
class A(object):
def method(self):
pass
from
On Jul 5, 1:52 am, Alex Popescu <[EMAIL PROTECTED]>
wrote:
> Hi all!
>
> I am pretty new to Python, so please excuse me if I am missing
> something. Lately, I've been playing with decorators and I am a bit
> confused about some behavior. Here is the code that puzzl
On Jul 5, 11:17 am, Michele Simionato <[EMAIL PROTECTED]>
wrote:
> On Jul 5, 3:41 am, [EMAIL PROTECTED] (Alex Martelli) wrote:
>
> >
>
> Alex already explained everything beautifully. I will just add a link
> to
> the definite guide to
> descriptors:http://users.rcn.com/python/download/Descriptor
On Jul 5, 3:32 pm, Steve Holden <[EMAIL PROTECTED]> wrote:
> Alex Popescu wrote:
> > On Jul 5, 11:17 am, Michele Simionato <[EMAIL PROTECTED]>
> > wrote:
> >> On Jul 5, 3:41 am, [EMAIL PROTECTED] (Alex Martelli) wrote:
>
> >>>
> >> Alex
On Jul 6, 12:21 am, Christoph Zwerschke <[EMAIL PROTECTED]> wrote:
> Kay Schluehr wrote:
> > If you are sure that the exception isn't caught on another level just
> > use the following showtraceback() function, manipulate it's output
> > slightly and terminate your program with sys.exit()
>
> That'
On Jul 5, 5:46 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> Kay Schluehr wrote:
> > On Jul 3, 8:12 pm, [EMAIL PROTECTED] (Cameron Laird) wrote:
>
> > > Python is simply easier than C++; you might
> > > well find that a debugger, for example, doesn't feel as essential
> > > as it is for you
On Jul 5, 5:01 pm, Michele Simionato <[EMAIL PROTECTED]>
wrote:
> On Jul 5, 3:17 pm, Alex Popescu <[EMAIL PROTECTED]>
> wrote:
>
> > The true story is that
> > while working on Groovy (I am a committer on this dynlang meant to run
> > on the Java VM:http:
On Jul 6, 4:20 am, Christoph Zwerschke <[EMAIL PROTECTED]> wrote:
> Alex Popescu wrote:
>
--
http://mail.python.org/mailman/listinfo/python-list
On Jul 6, 4:20 am, Christoph Zwerschke <[EMAIL PROTECTED]> wrote:
> Alex Popescu wrote:
> > Probably the simplest solution would be to create a new exception and
> > wrapping the old one and the additional info. Unfortunately, this
> > may have a huge impact on 3rd party
On Jul 6, 6:19 am, [EMAIL PROTECTED] (Alex Martelli) wrote:
> Alex Popescu <[EMAIL PROTECTED]> wrote:
>
>...
>
> > frameworks (TestNG is not a unit testing framework,
> > but a full flavored testing framework that fits perfectly functional
> > testing, integ
On Jul 9, 6:42 pm, Rob Cakebread <[EMAIL PROTECTED]> wrote:
> On Jul 9, 7:54 am, [EMAIL PROTECTED] wrote:
>
>
> >
>
> > mod = modulefinder.ModuleFinder()
> > mod.run_script(path/to/python_script.py)
> > mod.report()
>
> >
>
> > Mike
>
> Nope. All of those tools and the code above show *all* impo
On Jul 9, 6:31 pm, brad <[EMAIL PROTECTED]> wrote:
> When I use idle or a shell to execute a python script, the script
> executes in the directory it is currently in (in this case, my desktop).
> However, when using GNOME and right clicking the py script and selecting
> 'open with python', the exec
On Jul 10, 5:07 pm, "Daniel Nogradi" <[EMAIL PROTECTED]> wrote:
> > I have an issue I think Python could handle. But I do not have the knowledge
> > to do it.
>
> > Suppose I have a class 'myClass' and instance 'var'. There is function
> > 'myFunc(..)'. I have to add (or bind) somehow the function
On Jul 11, 1:25 pm, Stefan Behnel <[EMAIL PROTECTED]> wrote:
> rvr wrote:
> > On Jul 11, 1:28 pm, Steven D'Aprano
> > <[EMAIL PROTECTED]> wrote:
> >> On Wed, 11 Jul 2007 01:06:04 +, rvr wrote:
> >>> Is there a way to edit the file in place? The best I seem to be able to
> >>> do is to use your
On Jul 11, 4:15 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> > Forgive my newbie ignorance, but I am wondering why the other method
> > would not work? I mean it may not be very safe,
> > but I guess it may perform a lot better, than having to read the whole
> > file just to cut out the firs
On Jul 11, 7:45 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> Alex Popescu wrote:
> > On Jul 11, 4:15 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote:
> >> > Forgive my newbie ignorance, but I am wondering why the other method
On Jul 12, 6:23 pm, Jeremy Lynch <[EMAIL PROTECTED]> wrote:
> Hello,
>
> Learning python from a c++ background. Very confused about this:
>
>
> class jeremy:
> list=[]
> def additem(self):
> self.list.append("hi")
> return
>
> te
On Jul 12, 5:24 pm, "Andre Engels" <[EMAIL PROTECTED]> wrote:
> 2007/7/12, Andre Engels <[EMAIL PROTECTED]>:
>
> I forgot to include
>
> import urllib2, re
>
> here
>
> > def textonly(url):
> ># Get the HTML source on url and give only the main text
> >f = urllib2.urlopen(url)
> >text =
On Jul 14, 5:55 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
>
> So, as always, one should measure in each specific case if optimization is
> worth the pain [...].
>
I hope I am somehow misreading the above sentence :-). IMO synonim
language contructs
should result in the same performance
On Jul 13, 6:02 am, Bruno Desthuilliers
<[EMAIL PROTECTED]> wrote:
> Alex Popescu a écrit :
> (snip)
>
>
>
> > You are defining the list in the class context and so it becomes a
> > class field/member.
>
> 'attribute' is the pythonic term.
Thank
I read in this thread lots of different (hopefully personal) opinions
on the question of Java vs Python,
so I thought I will post mines too (with the amendment that I am a
Java guy, spending there more than 10 years).
I don't think you can do a performance comparison upfront (without
having it com
On Jul 14, 6:27 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Fri, 13 Jul 2007 13:24:57 -0300, bvdp <[EMAIL PROTECTED]> escribió:
>
>
>
>
>
> >> Seehttp://effbot.org/zone/import-confusion.htm
> >> Try to move the circular references later in the code (maybe inside a
> >> function, when it
On Jul 15, 3:00 pm, Steve Holden <[EMAIL PROTECTED]> wrote:
> Alex Popescu wrote:
> > On Jul 14, 5:55 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
> > wrote:
> >> So, as always, one should measure in each specific case if optimization is
> >>
On Jul 15, 10:08 pm, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Sun, 15 Jul 2007 08:49:54 -0300, Alex Popescu
> <[EMAIL PROTECTED]> escribió:
>
>
>
> >> > But, I still don't understand how python can access a function in a
> >
On Jul 17, 1:44 am, Stef Mientki <[EMAIL PROTECTED]>
wrote:
> I want to have a (dynamically) list of all classes defined in a py-file.
> Is there a way of getting this list, without manually parsing the file ?
>
> thanks,
> Stef Mientki
I have written something that does something like this, but I
On Jul 17, 4:41 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Mon, 16 Jul 2007 20:13:19 -0300, Alex Popescu
> <[EMAIL PROTECTED]> escribió:
>
> > On Jul 17, 1:44 am, Stef Mientki <[EMAIL PROTECTED]>
> > wrote:
> >> I want to hav
On Jul 17, 4:41 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Mon, 16 Jul 2007 20:13:19 -0300, Alex Popescu
> <[EMAIL PROTECTED]> escribió:
>
> > On Jul 17, 1:44 am, Stef Mientki <[EMAIL PROTECTED]>
> > wrote:
> >> I want to hav
On Jul 17, 4:41 am, "Gabriel Genellina" <[EMAIL PROTECTED]>
wrote:
> En Mon, 16 Jul 2007 20:13:19 -0300, Alex Popescu
> <[EMAIL PROTECTED]> escribió:
>
> > On Jul 17, 1:44 am, Stef Mientki <[EMAIL PROTECTED]>
> > wrote:
> >> I want to hav
Sanjay gmail.com> writes:
>
> Hi All,
>
> I tried posting in this group twice since last week, but the messages
> did not appear in the forum. Don't know why. Trying this message
> again...
>
> Sanjay
>
Something similar seemed to happen to me too, but when checking with gmane I've
noticed t
Alex Popescu gmail.com> writes:
>
> On Jul 17, 4:41 am, "Gabriel Genellina" yahoo.com.ar>
> wrote:
> > En Mon, 16 Jul 2007 20:13:19 -0300, Alex Popescu
> > gmail.com> escribi
>
I apologize for posting the previous message a couple of time
"Nathan Harmston" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Hi,
>
> I have being thinking about this and was wondering with built in types
> you can do things like
>
> float(1) or str(200)
>
> is there way I can define conversion functions like this:
>
> say i have a class A and
Hi all!
I am pretty sure this has been asked a couple of times, but I don't seem
to find it on the archives (Google seems to have a couple of problems
lately).
I am wondering what is the most pythonic way of dealing with missing
keys and default values.
According to my readings one can take t
Neil Cerutti <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> On 2007-07-20, Alex Popescu <[EMAIL PROTECTED]> wrote:
>> Hi all!
>>
>> I am pretty sure this has been asked a couple of times, but I
>> don't seem to find it on the archives (Google
Jakub Stolarski <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Version 1 and 2 do different thing than version 3. The latter doesn't
> add value to dict.
>
> As it was mentioned before, use:
> 1 - if you expect that there's no key in dict
> 2 - if you expect that there is key in dict
>
[EMAIL PROTECTED] wrote in news:1184970471.146819.86280
@r34g2000hsd.googlegroups.com:
I am not sure about your scenario, but as you discovered the sort() method
is modifying the in place list (and doesn't return a new one).
If you just want to iterate over your dict in an ordered manner than al
Miles <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> On 7/20/07, Alex Popescu <[EMAIL PROTECTED]> wrote:
>> If you just want to iterate over your dict in an ordered manner than
>> all you have to do is:
>>
>> for k in my_dict.keys().sort():
>>
Bruno Desthuilliers <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Alex Popescu a écrit :
>> Jakub Stolarski <[EMAIL PROTECTED]> wrote in
>
>
> [snip...]
>
>
> d = dict()
> answer = d.get('answer', 42)
> answer in d
> =>
"Ryan Ginstrom" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
>> On Behalf Of Paul Rubin
>> I'm wondering how other projects go about this.
>
> I develop an automated build system from the very beginning. Running
> the build script:
> * Creates the API documentation (epydoc)
> * Creates t
Zentrader <[EMAIL PROTECTED]> wrote in news:1185041243.323915.161230
@x40g2000prg.googlegroups.com:
> On Jul 21, 7:48 am, Duncan Booth <[EMAIL PROTECTED]> wrote:
>
> [snip...]
>
>
>>From the 2.6 PEP #361 (looks like dict.has_key is deprecated)
> Python 3.0 compatability: ['compatibility'-->someon
On 7/22/07, Ryan Ginstrom <> wrote:
> Hi Alex:
>
> Do you develop for Windows? Are you looking to automate a build
> process?
>
> The standard library's build module is distutils:
> http://docs.python.org/lib/module-distutils.html
>
> As I mentioned in my post, I use a variety of third-party mo
G <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> --=_Part_187401_13883248.1185238999144
> Hi,
>
> I am trying to subclass int to allow a constructor to accept None.
> I am
> trying the following
>
> class INT(int):
> def __init__(self, x):
> if x is None:
>
Neil Cerutti <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> On 2007-07-24, Alex Popescu <[EMAIL PROTECTED]> wrote:
>> Bruno Desthuilliers <[EMAIL PROTECTED]>
>> wrote in news:[EMAIL PROTECTED]:
>>
>
> [snip...]
>
>>
>> cla
"Steven D'Aprano" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> On Tue, 24 Jul 2007 21:35:58 +, Alex Popescu wrote:
>
>> Neil Cerutti <[EMAIL PROTECTED]> wrote in
>> news:[EMAIL PROTECTED]:
>>
>>> On 2007-07-24, Alex
Neil Cerutti <[EMAIL PROTECTED]> wrote in news:eRwpi.36813$G23.28496
@newsreading01.news.tds.net:
> On 2007-07-25, Alex Popescu <[EMAIL PROTECTED]> wrote:
>> As a matter of style, how do you figure out that class_list is
>> a class attribute and not an instance attr
Hi all!
I was reading through Python Cookbook the Singleton recipe. At this moment
I am a bit puzzled as the example in the book is not working resulting in:
TypeError: type.__new__(SingleSpam): SingleSpam is not a subtype of type
(I haven't presented the original code as I am not sure about co
"Diez B. Roggisch" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Alex Popescu schrieb:
>> Hi all!
>>
>> I was reading through Python Cookbook the Singleton recipe. At this
>> moment I am a bit puzzled as the example in the book is not worki
Alex Popescu <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote in
> news:[EMAIL PROTECTED]:
>
>> Alex Popescu schrieb:
>>> Hi all!
>>>
>>> I was reading through Python Cookbook th
Stef Mientki <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> hello,
>
> I want to remove some items from a dictionary,
> so I would expect this should work:
>
>Nets = {}
>... fill the dictionary Nets
>
>for net in Nets:
> if net.upper() in Eagle_Power_Nets :
>de
Steve Holden <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Alex Popescu wrote:
>> Alex Popescu <[EMAIL PROTECTED]> wrote in
>> news:[EMAIL PROTECTED]:
>>
>>> "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote in
>>> news:[
Alex Popescu <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Hi all!
>
> I am trying to use the os.path.walk function, but I am getting a weird
> error:
>
> def _walk(dir_name):
> def selector(arg, dirname, fnames):
> print "selector"
>
Alex Popescu <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Hi all!
>
> I am trying to use the os.path.walk function, but I am getting a weird
> error:
>
> def _walk(dir_name):
> def selector(arg, dirname, fnames):
> print "selector"
>
Hi all!
I am trying to use the os.path.walk function, but I am getting a weird
error:
def _walk(dir_name):
def selector(arg, dirname, fnames):
print "selector"
os.path.walk(dir_name, selector, None)
File "C:\zengarden\python\python25\lib\ntpath.py", line 325, in walk
names = os.list
Bruno Desthuilliers <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Alex Popescu a écrit :
>
> [snip...]
>
>
> I don't have the book, so if you don't post the code, I just give up
> trying to guess what the problem can be.
I've sent the ori
"Kevin T. Ryan" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Hi All -
>
> I'm having a problem and I hope you can help. I can't seem to import
> packages from within the package substructure as I think I should be
> able to. For example, I create a directory structure as follows:
>
Neal Becker <[EMAIL PROTECTED]> wrote in news:[EMAIL PROTECTED]:
> import exceptions
>
> class nothing (exceptions.Exception):
> def __init__ (self, args=None):
> self.args = args
>
> if __name__ == "__main__":
> raise nothing
>
> Traceback (most recent call last):
> File "",
Ben Finney <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> [EMAIL PROTECTED] writes:
>
>> from . import *
>> from .sibiling import *
>> from .. import *
>> from ..parent_sibling import *
>>
>> ...and so on. The same error occurs:
>> SyntaxError: 'import *' not allowed
Neal Becker <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Alex Popescu wrote:
>
>> Neal Becker <[EMAIL PROTECTED]> wrote in
>> news:[EMAIL PROTECTED]:
>>
>
> [snip...]
>
>>>
>>
>> You can pass to the exception:
>&g
[EMAIL PROTECTED] (John J. Lee) wrote in news:[EMAIL PROTECTED]:
> Alex Popescu <[EMAIL PROTECTED]> writes:
>
>> Zentrader <[EMAIL PROTECTED]> wrote in
>> news:1185041243.323915.161230 @x40g2000prg.googlegroups.com:
>>
>>> On Jul 21, 7:48 a
Hi all!
>From another thread (and the pointed PEP) I have found that execfile will
not be present in Py3k. So, I am wondering what will be its replacement?
Considering that most probably Py3k will keep eval and exec, this will
still be possible (indeed requiring manual loading of the file strin
"Steven D'Aprano" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> On Sat, 28 Jul 2007 15:17:56 +, Alex Popescu wrote:
>
>> Hi all!
>>
>> From another thread (and the pointed PEP) I have found that execfile
>> will not be p
"Gabor Urban" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> --=_Part_36089_18686793.1185871599583
> Hullo,
>
> I have started to use Python's logging, and got a problem. I have
> created some loggers and wrote some lines in the log. The problem is,
> that most of the lines appear do
Wingware <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Hi,
>
> I'm happy to announce the first beta release of Wing IDE 3.0. It is
> available from http://wingware.com/wingide/beta
>
>
> [snip...]
>
>
There is one feature that I would like to suggest: open module in project.
Currentl
[EMAIL PROTECTED] (Alex Martelli) wrote in news:1i23wyk.avc945i4dwsiN%
[EMAIL PROTECTED]:
> NicolasG <[EMAIL PROTECTED]> wrote:
>...
>> The problem is that I would like to work as a Python programmer but
>> all the job vacancies I can find requires a couple of years of
>> professional experien
"Robert Dailey" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> --=_Part_51775_19953536.1185988361742
> Hi,
>
> I'm currently interested in creating an __add__() operator for one of
> my classes. This class handles both integers and objects its own type,
> however I don't know how I c
[EMAIL PROTECTED] (Alex Martelli) wrote in news:1i25pjo.1mo5uqc1yxqsjkN%
[EMAIL PROTECTED]:
> Alex Popescu <[EMAIL PROTECTED]> wrote:
>...
>> > and you will both learn a lot _and_ acquire "professional
experience"
>> > that any enlightened employer wil
james_027 <[EMAIL PROTECTED]> wrote in news:1186036331.304916.304020
@e9g2000prf.googlegroups.com:
> hi
>
> for example I have this dictionary
>
> dict = {'name':'james', 'language':'english'}
>
> value = 'sex' in dict and dict['sex'] or 'unknown'
>
> is a right pythonic of doing this one? I a
[EMAIL PROTECTED] (Alex Martelli) wrote in news:1i26u6o.pthuan2j7nufN%
[EMAIL PROTECTED]:
> Alex Popescu <[EMAIL PROTECTED]> wrote:
>...
>> Have you seen/heard of Jim lately? Cause I haven't. By the time he
was
>> the lead of the AspectJ team his charismatic
Bruno Desthuilliers <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Steven D'Aprano a écrit :
> (snip)
>
>> Instead of doing:
>
>> if callable(function): function()
>>
>> you should do:
>>
>> try:
>> function()
>> except TypeError:
>> pass
>
> There are time where you may want
[EMAIL PROTECTED] (Alex Martelli) wrote in news:1i27mku.1sc8l3x1dda3crN%
[EMAIL PROTECTED]:
> Bruno Desthuilliers <[EMAIL PROTECTED]>
> wrote:
>
>> Alex Popescu a écrit :
>
> [... snip ...]
>
>
> The mere check of whether an object possesses some important s
"Robert Rawlins - Think Blue" <[EMAIL PROTECTED]>
wrote in news:[EMAIL PROTECTED]:
> This is a multipart message in MIME format.
>
> --=_NextPart_000_00B0_01C7D5B0.02EB8BA0
> Hello Guys,
>
>
>
> I'm looking for some advice on how best to handle file read/write
> errors with try/except as
"Robert Rawlins - Think Blue" <[EMAIL PROTECTED]>
wrote in news:[EMAIL PROTECTED]:
> Thanks for your ideas guys,
>
> I'm unfortunately tied to 2.4 so don't have the full try except
> status, but I'm now working with the following code:
>
> def addApp(self, event):
> try:
>
Steve Holden <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> Sonu wrote:
>> hello all ,
>>
> I want to watch my TV, but it's not working. Can you tell me how to
> fix it? ...
>
I can help you... but only with a couple of channels :-).
>> i need to run psql from my py file,,
>> for that
Stargaming <[EMAIL PROTECTED]> wrote in news:46b6df49$0$26165
[EMAIL PROTECTED]:
> On Sun, 05 Aug 2007 23:50:24 -0700, Lee Fleming wrote:
>
>> Hello,
>> I have a simple question. Say you have the following function:
>>
>> def f(x, y = []):
>> y.append(x)
>> return y
>>
>> print f(23) #
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