On Wednesday, October 9, 2013 4:54:03 PM UTC-7, Peter Cacioppi wrote:
> I really like the logic that Pythons "or" is not only short-circuit but
> non-typed.
>
>
>
> So I can say
>
>
>
> y = override or default
>
>
>
> and y won't necc be True or False. If override boolean evaluates to Tru
On 10/09/2013 11:12 PM, Peter Cacioppi wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
possible = foo and foo.allowsit()
if (possible is None) :
print "foo not provided"
if (possible is False) :
print "foo doesn't allow it"
A bit awkward,
On Wed, 09 Oct 2013 22:36:54 -0700, rusi wrote:
> On Thursday, October 10, 2013 6:40:19 AM UTC+5:30, Steven D'Aprano
> wrote:
>>
>> I have no objection to encouraging people to read the fine manual, and
>> I don't intend to be Nikos' (or anyone else's) unpaid full-time help
>> desk and troublesho
On 10/09/2013 06:47 PM, Ned Batchelder wrote:
>>> class B(A):
... def bfoo(*args):
... super().afoo(*args[1:])
...
>>> B().bfoo(1, 2, 3)
Traceback (most recent call last):
File "", line 1, in
File "", line 3, in bfoo
RuntimeError: super(): no arguments
How come?
The no-args s
On Thu, 10 Oct 2013 17:01:25 +1100, Ben Finney wrote:
> There are limits to how much disruption and obstinacy this community
> should tolerate from a given individual.
I think we are in violent agreement :-)
It's possible we disagree about where to draw the line, and whether
persistent clueless
On 10/10/2013 2:45 AM, Chris Angelico wrote:
On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi
wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
A bit awkward, echo-argument or is more naturally useful to me then
echo-argument and.
first_element
On 10/10/2013 00:48, Steven D'Aprano wrote:
> So, for the benefit of anyone, not just Nikos, who wants to learn about
> how browsers connect to web sites and how to run a web server, does
> anyone have any recommendation for tutorials, mailing lists, web forums
> or books which are suitable? Pre
On Thu, Oct 10, 2013 at 6:43 PM, Terry Reedy wrote:
> y = x and 1/x
> One just has to remember that y==0 effectively means y==+-infinity ;-).
Good example. Extremely appropriate to situations where you're showing
a set of figures and their average:
Foo 1
Bar 3
Quux 7
Asdf 9
= 5
Let th
"Steven D'Aprano" wrote in message
news:52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com...
> Just came across this little Javascript gem:
>
> ",,," == Array((null,'cool',false,NaN,4));
>
> => evaluates as true
>
> http://wtfjs.com/2011/02/11/all-your-commas-are-belong-to-Array
>
> I swear, I
Op 10-10-13 03:10, Steven D'Aprano schreef:
> On Thu, 10 Oct 2013 00:31:06 +, Denis McMahon wrote:
>>
>> If Nikos can't even figure out the right queries to feed into a search
>> engine to get started on such matters as looking at the cookie jar in a
>> browser or enabling cookie logging on a s
On 10/10/13 3:22 AM, Marco Buttu wrote:
On 10/09/2013 06:47 PM, Ned Batchelder wrote:
>>> class B(A):
... def bfoo(*args):
... super().afoo(*args[1:])
...
>>> B().bfoo(1, 2, 3)
Traceback (most recent call last):
File "", line 1, in
File "", line 3, in bfoo
RuntimeError: super()
On 10/10/2013 09:23, Frank Millman wrote:
"Steven D'Aprano" wrote in message
news:52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com...
Just came across this little Javascript gem:
",,," == Array((null,'cool',false,NaN,4));
=> evaluates as true
http://wtfjs.com/2011/02/11/all-your-commas-ar
On 2013-10-10 12:10, MRAB wrote:
> Re "==", this page:
>
> http://php.net/manual/en/language.operators.comparison.php
>
> states:
>
> """If you compare a number with a string or the *comparison involves
> numerical strings*, then each string is converted to a number and
> the comparison per
"MRAB" wrote in message
news:52568b30.8040...@mrabarnett.plus.com...
> On 10/10/2013 09:23, Frank Millman wrote:
>>
>> "Steven D'Aprano" wrote in message
>> news:52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com...
>>> Just came across this little Javascript gem:
>>>
>>> ",,," == Array((null,'
Python in Practice - Mark Summerfield
On Wednesday, October 9, 2013 2:55:17 PM UTC+2, Schneider wrote:
> Hi List,
>
>
>
> I'm looking for a good advanced python book. Most books I looked at up
>
> to now are on beginners level.
>
> I don't need a reference (that's online) or a book explainin
On 10/10/2013 01:04 PM, Ned Batchelder wrote:
On 10/10/13 3:22 AM, Marco Buttu wrote:
>>> import inspect
>>> class B(A):
... def bfoo(*args):
... frame = inspect.currentframe()
... for obj, value in frame.f_locals.items():
... print(obj, value, sep=' --> ')
...
In article <52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com>,
Steven D'Aprano wrote:
> Just came across this little Javascript gem:
>
> ",,," == Array((null,'cool',false,NaN,4));
>
> => evaluates as true
>
> http://wtfjs.com/2011/02/11/all-your-commas-are-belong-to-Array
>
> I swear, I am
On 9 October 2013 23:55, Schneider wrote:
>
> I'm looking for a good advanced python book. Most books I looked at up to
> now are on beginners level.
> I don't need a reference (that's online) or a book explaining how to use the
> interpreter or how to use list comprehensions on the one side and s
On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
> BTW, one of the earliest things that turned me on to Python was when I
> discovered that it uses j as the imaginary unit, not i. All
> right-thinking people will agree with me on this.
I've never been well-up on complex numbers; can you elabor
On 10/10/2013 14:25, Chris Angelico wrote:
On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
BTW, one of the earliest things that turned me on to Python was when I
discovered that it uses j as the imaginary unit, not i. All
right-thinking people will agree with me on this.
I've never been w
On Thu, 10 Oct 2013 01:10:19 +, Steven D'Aprano wrote:
>> If Nikos wants to write programs that communicate using internet
>> protocols, Nikos really needs to learn where internet protocols are
>> defined, how to read and interpret those protocol definitions, and how
>> to check that the data
I have a pair of Listboxes, each with ranges of the same text. For example:
ABCABC
DEFDEF
GHIGHI
JKLJKL
(My apologies, I'm sure Gmail is going to butcher that.)
If I select "ABC" from the first list, only the last three values in
the second list are appropriate selections. Is th
I've read a couple of articles about this, but still not sure.
When someone talks about a closure in another language (I'm learning Lua on the
side), is that the same concept as a decorator in Python?
It sure looks like it.
thanks,
--Tim
--
https://mail.python.org/mailman/listinfo/python-list
On Fri, Oct 11, 2013 at 12:51 AM, Tim wrote:
> I've read a couple of articles about this, but still not sure.
> When someone talks about a closure in another language (I'm learning Lua on
> the side), is that the same concept as a decorator in Python?
No, they're quite different. A decorator (le
Hi,
(explaining the title) : my app has functions and methods (and maybe classes in
the future) that are decorated by decorators provided by the standard library
or 3rd party packages.
But I need to test "undecorated" functions and methods in my unit tests,
preferably without adding "special s
Tim writes:
> I've read a couple of articles about this, but still not sure.
>
> When someone talks about a closure in another language (I'm learning
> Lua on the side), is that the same concept as a decorator in Python?
>
> It sure looks like it.
I don't see how. Wikipedia's opening paragraph o
On Fri, Oct 11, 2013 at 12:50 AM, Skip Montanaro wrote:
> Does Tk
> perhaps use a word other than "insensitive" to describe an item which
> you'd normally be able to click?
Other synonyms from GUI toolkits are "inactive" and "disabled". I
don't know if that'll be any help though.
ChrisA
--
http
On 2013-10-10, Chris Angelico wrote:
> On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
>> BTW, one of the earliest things that turned me on to Python was when I
>> discovered that it uses j as the imaginary unit, not i. All
>> right-thinking people will agree with me on this.
>
> I've never b
On Fri, Oct 11, 2013 at 1:12 AM, Grant Edwards wrote:
> Nope. "i" is electical current (though it's more customary to use
> upper case). "j" is the square root of -1.
>
>> and that hypercomplex numbers include i, j, k, and maybe even other
>> terms, and I never understood where j comes from. Why
Chris Angelico writes:
> def outer(x):
> x += 1
> def inner():
> return x
> return inner
...
> The terminology is that inner() "closes over" x, if I have that
> correct (I've not been all that big in functional programming and
> lambda calculus). Someone will correct me if I'm
On 11 October 2013 00:25, Chris Angelico wrote:
> On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
>
> I've never been well-up on complex numbers; can you elaborate on this,
> please? All I know is that I was taught that the square root of -1 is
> called i, and that hypercomplex numbers include
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi
wrote:
I'm trying to think of a good example usage of echo-argument and. Maybe
something like
A bit awkward, echo-argument or is more naturally useful to
> Other synonyms from GUI toolkits are "inactive" and "disabled". I
> don't know if that'll be any help though.
Thanks. "disabled" did the trick. Turns out you can't disable
individual items. Instead, you have to (hackishly) change the display
of entries somehow to indicate their inappropriateness
On Thursday, October 10, 2013 8:04:00 PM UTC+5:30, David wrote:
> I have never heard the term "hypercomplex" numbers. I guess you
> are referring to vectors with more dimensions than two. A three
A generalization of quaternions :
http://en.wikipedia.org/wiki/Hypercomplex_number
http://en.wikipedia
On Thu, Oct 10, 2013 at 4:37 PM, Skip Montanaro wrote:
> Thanks. "disabled" did the trick. Turns out you can't disable
> individual items. Instead, you have to (hackishly) change the display
> of entries somehow to indicate their inappropriateness...
Removing inappropriate entries is not much of
I have a function that looks like the following:
#-
filename = 'c:\testfile.h5'
f = open(filename,'r')
data = f.read()
q = multiprocessing.Queue()
p = multiprocess.Process(target=myFunction,args=(data,q))
p.start()
result = q.get()
p.join()
q.close()
f.close()
os
Hello,
I'm extending an application that supports customization using the C
language.
I am able to write standalone python applications that use the C API's
using cffi.
This is good, but only a first step.
This application allows me to register code that will run on various events
but it has to b
On 2013-10-10, Roy Smith wrote:
> In article <52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com>,
> Steven D'Aprano wrote:
>
>> Just came across this little Javascript gem:
>>
>> ",,," == Array((null,'cool',false,NaN,4));
>>
>> => evaluates as true
>>
>> http://wtfjs.com/2011/02/11/all-your-
On 10/10/2013 16:51, Neil Cerutti wrote:
[...]
Mixed arithmetic always promotes to the wider type (except in
the case of complex numbers (Ha!)).
r == c is equivalent to r == abs(c), which returns the magintude
of the complex number.
What?
>>> -1 == -1 + 0j
True
>>> -1 == abs(-1 + 0j)
False
>
On 10/10/2013 16:57, Rotwang wrote:
On 10/10/2013 16:51, Neil Cerutti wrote:
[...]
Mixed arithmetic always promotes to the wider type (except in
the case of complex numbers (Ha!)).
r == c is equivalent to r == abs(c), which returns the magintude
of the complex number.
What?
>>> -1 == -1 +
Jussi Piitulainen writes:
> I don't actually know for sure what the most correct terminology is,
> but I like to think that a closure is a procedure (function) closed in
> the environment (namespace) where it was created, so even when it is
> called from another environment, it uses the one where
On Oct 10, 2013, at 10:12 AM, Grant Edwards wrote:
> On 2013-10-10, Chris Angelico wrote:
>> On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
>>> BTW, one of the earliest things that turned me on to Python was when I
>>> discovered that it uses j as the imaginary unit, not i. All
>>> right-t
Isaac Gerg writes:
> I have a function that looks like the following:
That doesn't look like a function
>
> #-
> filename = 'c:\testfile.h5'
Your filename is most probably wrong. It should be something like:
filename = 'c:/testfile.h5'
filename = 'c:\\testfile.
Sorry, I am just providing pseudo code since I the code i have is quite large.
As I mentioned, the code works fine when I remove the multirpcessing stuff so
the filename is not the issue (though you are right in your correction).
Someone with the same problem posted a smaller, more complete exam
On 2013-10-10, Chris Angelico wrote:
> On Fri, Oct 11, 2013 at 1:12 AM, Grant Edwards
> wrote:
>> Nope. "i" is electical current (though it's more customary to use
>> upper case). "j" is the square root of -1.
>>
>>> and that hypercomplex numbers include i, j, k, and maybe even other
>>> terms
On 2013-10-10, MRAB wrote:
> On 10/10/2013 16:57, Rotwang wrote:
>> On 10/10/2013 16:51, Neil Cerutti wrote:
>>> [...]
>>>
>>> Mixed arithmetic always promotes to the wider type (except in
>>> the case of complex numbers (Ha!)).
>>>
>>> r == c is equivalent to r == abs(c), which returns the magint
On 10/10/2013 07:20 AM, Chris Angelico wrote:
On Fri, Oct 11, 2013 at 1:12 AM, Grant Edwards wrote:
Nope. "i" is electical current (though it's more customary to use
upper case). "j" is the square root of -1.
and that hypercomplex numbers include i, j, k, and maybe even other
terms, and I n
> Removing inappropriate entries is not much of a hack.
True, but then I have to go through the trouble of adding them back in
should they become valid again. :-)
Skip
--
https://mail.python.org/mailman/listinfo/python-list
On Thu, Oct 10, 2013 at 11:48 AM, Neil Cerutti wrote:
> On 2013-10-10, MRAB wrote:
>> On 10/10/2013 16:57, Rotwang wrote:
>>> On 10/10/2013 16:51, Neil Cerutti wrote:
[...]
Mixed arithmetic always promotes to the wider type (except in
the case of complex numbers (Ha!)).
>
kolmapäev, 9. oktoober 2013 2:55.28 UTC+3 kirjutas Cameron Simpson:
> On 08Oct2013 01:20, wrote:
>
> > I cant just subclassing doesent work. It seem the init method of the source
> > class also calls out another class. And the problem is, i can subclass the
> > other class to with the required
On 10/10/13 12:44 PM, Isaac Gerg wrote:
Sorry, I am just providing pseudo code since I the code i have is quite large.
As I mentioned, the code works fine when I remove the multirpcessing stuff so
the filename is not the issue (though you are right in your correction).
Someone with the same pr
On 2013-10-10, Ian Kelly wrote:
> On Thu, Oct 10, 2013 at 11:48 AM, Neil Cerutti wrote:
>> Woah. I thought I was going by what the docs say:
>>
>> Python fully supports mixed arithmetic: when a binary
>> arithmetic operator has operands of different numeric types,
>> the operand with the ?n
On Thu, Oct 10, 2013 at 2:41 PM, Ned Batchelder wrote:
> On 10/10/13 12:44 PM, Isaac Gerg wrote:
>
>> Sorry, I am just providing pseudo code since I the code i have is quite
>> large.
>>
>> As I mentioned, the code works fine when I remove the multirpcessing
>> stuff so the filename is not the iss
On Thu, Oct 10, 2013 at 2:49 PM, Isaac Gerg wrote:
>
>
>
> On Thu, Oct 10, 2013 at 2:41 PM, Ned Batchelder wrote:
>
>> On 10/10/13 12:44 PM, Isaac Gerg wrote:
>>
>>> Sorry, I am just providing pseudo code since I the code i have is quite
>>> large.
>>>
>>> As I mentioned, the code works fine when
Am 10.10.13 18:54, schrieb Grant Edwards:
On 2013-10-10, Chris Angelico wrote:
On Fri, Oct 11, 2013 at 1:12 AM, Grant Edwards wrote:
Nope. "i" is electical current (though it's more customary to use
upper case). "j" is the square root of -1.
and that hypercomplex numbers include i, j, k,
On 10 October 2013 15:34, David wrote:
> On 11 October 2013 00:25, Chris Angelico wrote:
>> On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
>>
>> I've never been well-up on complex numbers; can you elaborate on this,
>> please? All I know is that I was taught that the square root of -1 is
>>
Isaac Gerg writes:
> Sorry, I am just providing pseudo code since I the code i have is quite large.
>
> As I mentioned, the code works fine when I remove the multirpcessing stuff so
> the filename is not the issue (though you are right in your correction).
>
> Someone with the same problem poste
On 10 October 2013 18:48, Neil Cerutti wrote:
> I guess the "if appropriate" part eluded my eye. When *is* it
> appropriate? Apparently not during an equal test.
>
5.0 == abs(3 + 4j)
> False
If the above is genuine output then it's most likely floating point
error. I wouldn't expect any erro
On 2013-10-10, Oscar Benjamin wrote:
> On 10 October 2013 18:48, Neil Cerutti wrote:
>> I guess the "if appropriate" part eluded my eye. When *is* it
>> appropriate? Apparently not during an equal test.
>>
> 5.0 == abs(3 + 4j)
>> False
>
> If the above is genuine output then it's most likely
On Thu, 10 Oct 2013 01:47:52 +, Steven D'Aprano wrote:
> On Wed, 09 Oct 2013 14:41:53 +, Walter Hurry wrote:
>
>> Many thanks to those prepared to forgive my transgression in the
>> 'Goodbye' thread. I mentioned there that I was puzzled by a
>> UnicodeEncodeError, and said I would rise it
Hi Piet,
Here is a real code example:
http://stackoverflow.com/questions/948119/preventing-file-handle-inheritance-in-multiprocessing-lib
As I said before, I had provide pseudocode.
I cannot close the file after reading because it is part of a class and other
threads may be calling member func
On Thu, Oct 10, 2013 at 2:29 PM, Skip Montanaro wrote:
> > Removing inappropriate entries is not much of a hack.
>
> True, but then I have to go through the trouble of adding them back in
> should they become valid again. :-)
>
It seems that this could be handled fairly straight-forwardly by
sub
On 10Oct2013 11:34, markot...@gmail.com wrote:
> OK so I did a took time of and read the pykkar code through. abd
> I found that there is a third class i have to implement.
> This Is the pykkar sourcecode
[... lots and lots of docstring and code ...]
[... and finally a little more messgae ...]
> I
On 10Oct2013 17:48, Neil Cerutti wrote:
> On 2013-10-10, MRAB wrote:
> > If r is real (float) and c is complex:
> > r == c means r == c.real and c.imag == 0.0
>
> Woah. I thought I was going by what the docs say:
>
> Python fully supports mixed arithmetic: when a binary
> arithmetic op
On 10Oct2013 07:00, Gilles Lenfant wrote:
> (explaining the title) : my app has functions and methods (and
> maybe classes in the future) that are decorated by decorators
> provided by the standard library or 3rd party packages.
>
> But I need to test "undecorated" functions and methods in my uni
On 11 October 2013 06:29, Oscar Benjamin wrote:
>
> I learned to use i for sqrt(-1) while studying theoretical physics.
> When I later found myself teaching maths to engineers I asked why j
> was used and was given this explanation. I'm still unconvinced by it
> though.
Please don't be. We need d
On Thu, 10 Oct 2013 08:31:21 -0700, Isaac Gerg wrote:
> I have a function that looks like the following:
>
> #-
> filename = 'c:\testfile.h5'
> f = open(filename,'r')
> data = f.read()
it seems kind of obvious from your sample:
add: f.close()
> q = multiprocessin
On Thu, 10 Oct 2013 18:16:07 -0500, mapoe wrote:
> On Thu, 10 Oct 2013 08:31:21 -0700, Isaac Gerg wrote:
>
>> I have a function that looks like the following:
>>
>> #-
>> filename = 'c:\testfile.h5'
>> f = open(filename,'r')
>> data = f.read()
>
> it seems kind o
markot...@gmail.com writes:
>
> OK so I did a took time of and read the pykkar code through. abd I found that
> there is a third class i have to implement.
[...]
> So I have come up with this code
> from pykkar import *
>
> create_world("""
>
> # #
> # v#
> # #
> #
On 10/10/13 6:12 PM, Cameron Simpson wrote:
On 10Oct2013 07:00, Gilles Lenfant wrote:
(explaining the title) : my app has functions and methods (and
maybe classes in the future) that are decorated by decorators
provided by the standard library or 3rd party packages.
But I need to test "undecor
Piet van Oostrum writes:
> from import * is considered bad practice anyway. It is better just to import
> the things you need.
>
> from pykkar import World, Pykkar, _WorldProper
Or, even better, be explicit:
import pykkar
…
foo = pykkar.World()
--
\ “Computer perspect
In article ,
Piet van Oostrum wrote:
> I usually say that a closure is a package, containing a function with
> some additional data it needs. The data usually is in the form of name
> bindings.
That's pretty close to the way I think about it. The way it was
originally described to me is, "A c
In article ,
Neil Cerutti wrote:
> >>> 5.0 == abs(3 + 4j)
> False
I'd like an argument, please.
--
https://mail.python.org/mailman/listinfo/python-list
> It seems that this could be handled fairly straight-forwardly by
subclassing either Listbox or Frame to implement your own, custom widget.
I will freely admit that I am far from facile with Tk widgets. I've been
using GTK for most GUI apps for a long while (when I need to write such
things), but
On 10/10/2013 10:00 AM, Gilles Lenfant wrote:
To add to the other two responses so far...
(explaining the title) : my app has functions and methods (and maybe classes in
the future) that are decorated by decorators provided by the standard library
or 3rd party packages.
But I need to test "u
On Fri, 11 Oct 2013 00:25:27 +1100, Chris Angelico wrote:
> On Fri, Oct 11, 2013 at 12:09 AM, Roy Smith wrote:
>> BTW, one of the earliest things that turned me on to Python was when I
>> discovered that it uses j as the imaginary unit, not i. All
>> right-thinking people will agree with me on t
On 10/10/2013 9:33 AM, Ethan Furman wrote:
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
first_element = some_list[0]# Oops, may crash
some_list[0:1] always works, and sometimes is usable, but you still
cannot index the slice.
Not if some_l
On 10/10/2013 2:49 PM, Isaac Gerg wrote:
Additionally, is there a place on the web to view this conversation and
reply? Currently, I am only able to access this list through email.
news.gmane.org newsgroup gmane.lang.python.general
Look at the headers for this message.
The site also has a sea
On Thu, 10 Oct 2013 09:09:42 -0400, Roy Smith wrote:
> BTW, here's a Python equality oddity:
>
r = 0.0
c = 0 + 0j
r == c
> True
Mathematically, this is only to be expected.
int(r) == int(c)
> Traceback (most recent call last):
> File "", line 1, in
> TypeError: can't con
On Thu, 10 Oct 2013 07:04:38 -0400, Ned Batchelder wrote:
> super() with no args is a kind of hack to begin with. It involves a
> special case in the compiler (so that using the name "super" as a
> function call will act as if you had accessed the name "__class__" so
> that super can find it late
On Thu, 10 Oct 2013 17:48:16 +, Neil Cerutti wrote:
> >>> 5.0 == abs(3 + 4j)
> False
Did you maybe accidentally rebind abs? If not, what version of Python are
you using?
[steve@ando ~]$ for a in 2.4 2.5 2.6 2.7 3.2 3.3 ; do
> python$a -c "print( 5.0 == abs(3 + 4j) )" ;
> done
True
True
Tr
On Thu, Oct 10, 2013 at 8:11 PM, Steven D'Aprano
wrote:
> One of the side-effects of this being a hack is that this doesn't work:
>
> class X(Y):
> def method(self, arg):
> f = super
> f().method(arg)
Actually, that works just fine. The compiler sees that super is
accessed wi
On 10Oct2013 19:44, Ned Batchelder wrote:
> On 10/10/13 6:12 PM, Cameron Simpson wrote:
> >Speaking for myself, I would be include to recast this code:
> >
> > @absolutize
> > def addition(a, b):
> > return a + b
> >
> >into:
> >
> > def _addition(a, b):
> > return a + b
> >
> >
On 10/10/2013 06:41 PM, Terry Reedy wrote:
On 10/10/2013 9:33 AM, Ethan Furman wrote:
On 10/10/2013 12:43 AM, Terry Reedy wrote:
On 10/10/2013 2:45 AM, Chris Angelico wrote:
first_element = some_list[0]# Oops, may crash
some_list[0:1] always works, and sometimes is usable, but you st
On Fri, 11 Oct 2013 09:12:38 +1100, Cameron Simpson wrote:
> On 10Oct2013 07:00, Gilles Lenfant wrote:
>> (explaining the title) : my app has functions and methods (and maybe
>> classes in the future) that are decorated by decorators provided by the
>> standard library or 3rd party packages.
>>
On Thu, 10 Oct 2013 20:33:37 -0600, Ian Kelly wrote:
> On Thu, Oct 10, 2013 at 8:11 PM, Steven D'Aprano
> wrote:
>> One of the side-effects of this being a hack is that this doesn't work:
>>
>> class X(Y):
>> def method(self, arg):
>> f = super
>> f().method(arg)
>
> Actually
On 10Oct2013 19:44, Ned Batchelder wrote:
> > I have to admit I'm having a hard time understanding why you'd need
> > to test the undecorated functions. After all, the undecorated
> > functions aren't available to anyone. All that matters is how they
> > behave with the decorators.
In article ,
On 11Oct2013 02:55, Steven D'Aprano
wrote:
> On Fri, 11 Oct 2013 09:12:38 +1100, Cameron Simpson wrote:
> > Speaking for myself, I would be include to recast this code:
> >
> > @absolutize
> > def addition(a, b):
> > return a + b
> >
> > into:
> >
> > def _addition(a, b):
> >
Cameron Simpson writes:
> On 11Oct2013 02:55, Steven D'Aprano
> wrote:
> > def undecorate(f):
> > """Return the undecorated inner function from function f."""
> > return f.func_closure[0].cell_contents
>
> Whereas this feels like black magic. Is this portable to any decorated
> function
On Thursday, October 10, 2013 5:07:11 PM UTC-7, Roy Smith wrote:
> I'd like an argument, please.
'Receptionist' (Rita Davies) - Yes, sir?
'Man' (Michael Palin) - I'd like to have an argument please.
'Receptionist' - Certainly sir, have you been here before...?
'Man' - No, this is my first time.
'R
On 11Oct2013 14:42, Ben Finney wrote:
> Cameron Simpson writes:
> > On 11Oct2013 02:55, Steven D'Aprano
> > wrote:
> > > def undecorate(f):
> > > """Return the undecorated inner function from function f."""
> > > return f.func_closure[0].cell_contents
> >
> > Whereas this feels like bla
On Fri, 11 Oct 2013 14:13:19 +1100, Cameron Simpson wrote:
> On 11Oct2013 02:55, Steven D'Aprano
> wrote:
>> On Fri, 11 Oct 2013 09:12:38 +1100, Cameron Simpson wrote:
>> > Speaking for myself, I would be include to recast this code:
>> >
>> > @absolutize
>> > def addition(a, b):
>> >
On Fri, 11 Oct 2013 15:36:29 +1100, Cameron Simpson wrote:
> But is it reliable? Will it work on any decorated function?
*Any* decorated function? No, of course not, since decorators can do
anything they like:
def decorate(func):
return lambda *args: "Surprise!"
@decorate
def something_use
On Fri, Oct 11, 2013 at 11:13 AM, Dennis Lee Bieber
wrote:
> On Fri, 11 Oct 2013 01:20:01 +1100, Chris Angelico
> declaimed the following:
>
>>
>>This belongs in the Izzet League, I think.
>>
> Was that an MtG reference?
It most assuredly was. The Ravnican guild known as the Izzet League
Could someone give me a brief thumbnail sketch of the difference between
multi-threaded programming in Java.
I have a fairly sophisticated algorithm that I developed as both a single
threaded and multi-threaded Java application. The multi-threading port was
fairly simple, partly because Java ha
On Fri, Oct 11, 2013 at 2:00 PM, Steven D'Aprano
wrote:
> I'll now go and write "I will always test my code snippets before
> posting" on the blackboard one hundred times.
print("I will always test my code snippets before posting\n"*100)
ChrisA
PS. Irony would be having a bug in that because I
Eric Frederich writes:
> I'm extending an application that supports customization using the C
> language.
> I am able to write standalone python applications that use the C API's
> using cffi.
> This is good, but only a first step.
>
> This application allows me to register code that will run on
On 10/11/2013 04:33 AM, Ian Kelly wrote:
On Thu, Oct 10, 2013 at 8:11 PM, Steven D'Aprano
>One of the side-effects of this being a hack is that this doesn't work:
>
>class X(Y):
> def method(self, arg):
> f = super
> f().method(arg)
Actually, that works just fine. The
On 10/11/2013 04:11 AM, Steven D'Aprano wrote:
super() with no arguments is*completely* a hack[1], and one where GvR
has said "Never again!" if I remember correctly. I don't think he regrets
allowing the super compile-time magic, just that it really is magic and
he doesn't want to make a habit
This is the code I m trying to run:
from sympy import *
import numpy as np
from sympy import symbols
def deriv(x,t):
a = array(x)
for i in range(0,len(x)):
temp = x[i]
a[i] = temp[0].diff(t)
return a
def matrixmult (A, B):
C = [[0 for row in range(len(A))] for col
1 - 100 of 103 matches
Mail list logo
