> For example, if I have x=[ [1,2], [3,4] ]
>
> What I want is a new list of list that has four sub-lists:
>
> [[1,2], [f(1), f(2)], [3,4], [f(3), f(4)]]
[[a, [f(b) for b in a]] for a in x]
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On 9/2/07, llothar <[EMAIL PROTECTED]> wrote:
> I'm afraid that the GIL is killing the usefullness of python for some
> types of applications now where 4,8 oder 64 threads on a chip are here
> or comming soon.
>
> What is the status about that for the future of python?
>
> I know that at the moment
> No. http://www.artima.com/weblogs/viewpost.jsp?thread=211430
Ops, I meant:
http://www.artima.com/forums/threaded.jsp?forum=106&thread=211200
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Bookmarks: http://del.icio.us/edcrypt
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On 9/13/07, Wildemar Wildenburger <[EMAIL PROTECTED]> wrote:
> because I'm trained to interpret the underscore as a synonym for one
> space. It's not particularly beautiful, but that is probably a matter of
> habituation. And that exact word is probably the reason why I'd still
> use self or s (exp
On 9/14/07, Steven D'Aprano <[EMAIL PROTECTED]> wrote:
> I thought that overflow errors would be a thing of the past now that
> Python automatically converts ints to longs as needed. Unfortunately,
> that is not the case.
>
> >>> class MyInt(int):
> ... pass
> ...
> >>> MyInt(sys.maxint)
> 2147
On 14 Sep 2007 18:08:00 -0700, Paul Rubin
<"http://phr.cx"@nospam.invalid> wrote:
> "Eduardo O. Padoan" <[EMAIL PROTECTED]> writes:
> > Not totally unrelated, but in Py3k, as it seems, overflows are really
> > things of the past:
> >
&g
On 9/15/07, Carl Banks <[EMAIL PROTECTED]> wrote:
> On Fri, 14 Sep 2007 22:59:13 -0300, Eduardo O. Padoan wrote:
>
> > On 14 Sep 2007 18:08:00 -0700, Paul Rubin
> > <"http://phr.cx"@nospam.invalid> wrote:
> >> "Eduardo O. Padoan" <[
> > It's nice people have invented so many ways to spell the
> > builting "map" ;)
> >
> ",".join(map(str,[1,2,3]))
> > '1,2,3'
>
> IIRC, map's status as a builtin is going away.
Actually, py3k built-in map == itertools.imap
>>> map(str, [])
--
http://www.advogato.org/person/eopadoan/
Boo
On 9/15/07, J. Cliff Dyer <[EMAIL PROTECTED]> wrote:
> And I'd hate to have to remember all of the rules for what can go
> together and what can't, especially when it comes time to debug. No.
> I don't think it should be forced, but maybe put it in PEP8 or PEP3008.
It is: see "Whitespace in Expre
On 9/27/07, TheFlyingDutchman <[EMAIL PROTECTED]> wrote:
> It seems that Python 3 is more significant for what it removes than
> what it adds.
>
> What are the additions that people find the most compelling?
- dict.items(), .values() and .keys() returns "dict views", and the
.iter*() removal
h
> What's the equivalent of unittest's "assertRaises"?
> In certain situations it is also useful to test wether an exception
> (along its type) is raised or not.
> Does py.test support such thing?
import py.test
py.test.raises(NameError, "blablabla")
--
http://www.advogato.org/person/eopadoan/
B
On 10/11/07, Luis Zarrabeitia <[EMAIL PROTECTED]> wrote:
>
> Hi there.
>
> I just tried this test:
>
>
> def f(**kwds):
> print kwds
>
> import UserDict
> d = UserDict.UserDict(hello="world")
> f(**d)
>
>
> And it fails with a TypeError exception ("f() argument after ** must be a
> di
On 10/18/07, danfolkes <[EMAIL PROTECTED]> wrote:
> I thought I would post the source to a program that I made that will
> download the http://ubuntu.media.mit.edu/ubuntu-releases/gutsy/
> as soon as its posted.
>
> It checks the site every 10 min time.sleep(600)
>
> This is mostly untested so I wo
On 10/29/07, brad <[EMAIL PROTECTED]> wrote:
> Will len(a_string) become a_string.len()? I was just reading
>
> http://docs.python.org/dev/3.0/whatsnew/3.0.html
>
> One of the criticisms of Python compared to other OO languages is that
> it isn't OO enough or as OO as others or that it is inconsist
On Nov 30, 2007 11:36 AM, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:
> "Eduardo O. Padoan" <[EMAIL PROTECTED]> writes:
>
> > No, writing this way will confound the 2to3 tool.
>
> Why? print("foo") is a perfectly valid Python 2 statement. Maybe
&
On Nov 30, 2007 11:18 AM, Peter Decker <[EMAIL PROTECTED]> wrote:
> On Nov 30, 2007 1:19 AM, Tim Roberts <[EMAIL PROTECTED]> wrote:
>
> > You also have a couple of instances of:
> > print("Error Squeezing %s...")
> >
> > The parentheses serve no purpose here, and are unidiomatic.
>
> I thought
On Jan 18, 2008 3:09 PM, Zbigniew Braniecki
<[EMAIL PROTECTED]> wrote:
> I found a bug in my code today, and spent an hour trying to locate it
> and then minimize the testcase.
>
> Once I did it, I'm still confused about the behavior and I could not
> find any reference to this behavior in docs.
>
On Jan 23, 2008 9:55 AM, Steven D'Aprano
<[EMAIL PROTECTED]> wrote:
> For that to work, you need to give your class an __eq__ method, and have
> it match by name:
>
> # put this in MyClass
> def __eq__(self, other):
> return self.name == self.other
Do you mean:
# put this in M
On Feb 1, 2008 5:19 AM, Arnaud Delobelle <[EMAIL PROTECTED]> wrote:
>
> On Feb 1, 5:08 am, Paddy <[EMAIL PROTECTED]> wrote:
> > On Feb 1, 1:26 am, "Blubaugh, David A." <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > > To Everyone on the planet Earth,
> >
> > > Please accept my apologies for
> >
> > > Wh
On Jan 29, 2008 2:43 PM, John Nagle <[EMAIL PROTECTED]> wrote:
>Submitting Python 2.5 to ISO/ANSI might be a good idea.
>From GvR himself:
"""
- Does a specification (ISO, ECMA, ..) is planned for Python and when ?
No, never. I don't see the point.
"""
http://blogs.nuxeo.com/sections/blogs/ta
On Feb 4, 2008 1:36 AM, 7stud <[EMAIL PROTECTED]> wrote:
> print dir(type) #__mro__ attribute is in here
> print dir(object) #no __mro__ attribute
>
>
> class Mammals(object):
> pass
> class Dog(Mammals):
> pass
>
> print issubclass(Dog, type) #False
> print Dog.__mro__
>
> --outpu
On Feb 5, 2008 1:30 PM, Nick Craig-Wood <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> > Ruby has a neat little convenience when writing loops where you don't
> > care about the loop index: you just do n.times do { ... some
> > code ... } where n is an integer repres
On Feb 19, 2008 3:15 AM, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
> Does this have to be true? Beneath the more complex syntax are there
> a few core design principles/objects/relationships to help in grokking
> the whole thing? Got any related links?
Take a look at a simpler implementation,
On Thu, Jan 22, 2009 at 7:10 AM, wrote:
> I use the Python shell daily, plus of course normal editors to edit
> python scripts. They both are very useful for different purposes. But
> the default interactive shell isn't much handy if you want to modify
> the past code to run it again, or you want
On Thu, Jan 22, 2009 at 5:01 PM, wrote:
> Eduardo O. Padoan:
>> You are almost *describing* reinteract:
>
> - Thank you for the link and the software, I have not tried it yet,
> but from the screencast it looks quite nice.
> - I am glad that there are people that don&
On Mon, Dec 1, 2008 at 9:16 AM, Michele Simionato
<[EMAIL PROTECTED]> wrote:
> I am thinking about releasing a new version of the decorator module,
> [...]
Just FYI, the module being discussed here is
http://www.phyast.pitt.edu/~micheles/python/documentation.html
I dont use it myself, but given h
On Thu, Dec 4, 2008 at 7:44 AM, James Stroud <[EMAIL PROTECTED]> wrote:
> alex23 wrote:
>>
>> On Dec 4, 3:42 pm, "Warren DeLano" <[EMAIL PROTECTED]> wrote:
>>>
>>> So you prefer broken code to broken rules, eh? Your customers must love
>>> that! This is exactly the kind of ivory-tower thinking I
On Mon, Nov 17, 2008 at 7:30 AM, Johannes Bauer <[EMAIL PROTECTED]> wrote:
> Hello list,
>
> since I've read so much about Python 3 and ran into some trouble which
> was supposed to be fixed with 3k, I yesterday came around to compile it
> and try it out.
>
> To sum it up: It's awesome. All the pro
On Sun, Apr 12, 2009 at 8:53 AM, Tim Chase
wrote:
>>> From the docs:
>>
>> all(iterable)
>> Return True if all elements of the iterable are true.
>> Equivalent
>> to:
>> def all(iterable):
>> for element in iterable:
>> if not element:
On Wed, May 14, 2008 at 12:20 PM, Blubaugh, David A.
<[EMAIL PROTECTED]> wrote:
> To Whom It May Concern,
>
> I was wondering if anyone has ever worked with hash tables within the Python
> Programming language? I will need to utilize this ability for quick
> numerical calculations.
http://docs.py
On Fri, May 16, 2008 at 6:40 PM, Gary Herron <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
>>
>> On 16 mai, 23:28, Hans Nowak <[EMAIL PROTECTED]> wrote:
>>
>>>
>>> Dan Upton wrote:
>>>
for pid in procs_dict:
if procs_dict[pid].poll() != None
# do the counter updates
>
On Tue, May 20, 2008 at 8:24 PM, Gabriel Genellina
<[EMAIL PROTECTED]> wrote:
> En Tue, 20 May 2008 10:28:51 -0300, castironpi <[EMAIL PROTECTED]>
> escribió:
>
>> You meant 'thd1.start( )' and 'thd2.start( )'.
>
> Wow! A message with a high S/N ratio coming from you!
> And it's not the first I've
On Thu, May 29, 2008 at 3:06 PM, Jason <[EMAIL PROTECTED]> wrote:
> I've got Python 3.0 alpha 2. In this version, it looks like you can
> define classes in either the old style or new style. (I snipped the
> top line a bit in the following example):
Wrong. Py3k Classes are always new-style. They
On Thu, Jun 5, 2008 at 10:29 AM, Hans Nowak
<[EMAIL PROTECTED]> wrote:
> Helmut Jarausch wrote:
>>
>> Hi,
>> just to let you know ...
>>
>> Today I've got an email from Amazon recommending me
>> Harry Potter and the Deathly Hallows
>>
>> and they told me why they recommended this book,
>> because I
On Wed, Jun 11, 2008 at 10:28 AM, Kless <[EMAIL PROTECTED]> wrote:
> I understand very well that a service is a software which is accessed
> through a network.
>
> And the description given on Wikipedia [1] is "A 'Web service' (also
> Web Service) is defined by the W3C as "a software system designe
On Fri, Jul 18, 2008 at 4:21 PM, mark floyd <[EMAIL PROTECTED]> wrote:
> I'm new to Python and have been doing work converting a few apps from Perl
> to Python. I can not figure out the comparable Python structures for
> multi-variable for loop control.
>
> Examples:
>
> # In Perl
> for($i = 0, j
On Tue, Apr 1, 2008 at 3:57 PM, <[EMAIL PROTECTED]> wrote:
> On Apr 1, 12:47 pm, "Gabriel Genellina" <[EMAIL PROTECTED]>
> wrote:
> > En Tue, 01 Apr 2008 13:57:55 -0300, <[EMAIL PROTECTED]> escribió:
>
> >
> > > On Mar 31, 1:36 pm, "Gabriel Genellina" <[EMAIL PROTECTED]>
> > > wrote:
> >
> >
On Tue, Apr 1, 2008 at 4:20 PM, <[EMAIL PROTECTED]> wrote:
> > > > Please explain how the existence of Python 3.0 would break your
> production
> > > > code.
> >
> > > The existence of battery acid won't hurt me either, unless I come into
> > > contact with it. If one eventually upgrades
On Thu, May 8, 2008 at 7:25 AM, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> i was reading/learning some hello world program in python.
> I think its very simillar to Java/C++/C#. What's different (except
> syntax) ?
>
> what can i do easily with python which is not easy in c++/java !
On Sat, Sep 20, 2008 at 11:26 AM, Kay Schluehr <[EMAIL PROTECTED]> wrote:
> On 20 Sep., 12:14, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
>> Kay Schluehr wrote:
>> > Answer: if you want to define an entity it has to be defined inside a
>> > class. If you want to access an entity you have to use the d
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