On Monday 30 May 2011 23:38:53 Gabriel wrote:
> Thanks a lot to both of you, Chris & Peter!
>
> (I knew the solution would be simple ... ;-) )
import math
length = math.hypot(z, math.hypot(x, y))
One line and fast.
OldAl.
--
Algis
http://akabaila.pcug.org.au/StructuralAnalysis.pdf
--
http://
On Thursday 26 May 2011 14:46:45 Uncle Ben wrote:
> In playing with lists of lists, I found the following:
>
> (In 3.1, but the same happens also in 2.7)
>
> list = [1,2,3]
> list.append ( [4,5,6] )
> x = list
> x ->
> [1,2,3,[4,5,6]]
> as expected.
>
> But the shortcut fails:
>
> list=[1
On Wednesday 25 May 2011 06:27:52 sunrrrise wrote:
> Ok, another time I'd like to thank you for your help. I gave
> up, I'm going to get used to IDLE GUI... at least this one
> works!
With IDLE, after any changes to the program, you are asked to
"save file". IDLE knows that a file in python needs
On Tuesday 17 May 2011 07:23:33 garyr wrote:
> A file can be deleted by opening it with mode os.O_TEMPORARY
> and then closing it. How can a file be moved to the Recycle
> Bin, a la Windows?
Just highlight it, pess the "Del" key and select "move to
Trash". (With minor variation between different
On Friday 13 May 2011 18:47:50 Hans Georg Schaathun wrote:
> On Thu, 12 May 2011 23:20:20 +1000, Chris Angelico
>
>wrote:
> : Writing a program requires expertise both in programming
snip...
>
> And the main difference here, is that the civil engineers
> have a much better language to share
On Sunday 15 May 2011 19:44:29 Daniel Kluev wrote:
> On Sun, May 15, 2011 at 8:15 PM, Algis Kabaila
wrote:
> > Hi All,
> >
> > I would really appreciate any comments and suggestions for
> > the Vectors.py module, which can be downloaded from
>
> - If you intend
Hi All,
I would really appreciate any comments and suggestions for the
Vectors.py module, which can be downloaded from
http://akabaila.pcug.org.au/linalg/vectors.tar.gz
The tar ball is only about 4 KiB, but I gather that this mailing
list does not tolerate attachments.
The module is designed
On Thursday 12 May 2011 22:23:04 Roy Smith wrote:
> I have a vague feeling this may have been discussed a long
> time ago, but I can't find the thread, so I'll bring it up
> again.
>
> I recently observed in the "checking if a list is empty"
> thread that a list and a subclass of list can compare
On Tuesday 10 May 2011 17:44:44 Terry Reedy wrote:
> On 5/10/2011 3:22 AM, Algis Kabaila wrote:
> > On Tuesday 10 May 2011 11:25:59 Terry Reedy wrote:
> > > class listwrap:
> > > def __init__(self, lis):
> > > self._list = lis
> > >
> >
On Tuesday 10 May 2011 17:22:42 Algis Kabaila wrote:
> On Tuesday 10 May 2011 11:25:59 Terry Reedy wrote:
> > On 5/9/2011 8:44 PM, Algis Kabaila wrote:
> > > The method of double indexing in the manner
> > > a[i][j]
> > > for the (i, j) -th element of multi-d
On Tuesday 10 May 2011 11:25:59 Terry Reedy wrote:
> On 5/9/2011 8:44 PM, Algis Kabaila wrote:
> > The method of double indexing in the manner
> > a[i][j]
> > for the (i, j) -th element of multi-dimensional array is
> > well known and widely used. But how to enabl
On Tuesday 10 May 2011 05:24:16 Terry Reedy wrote:
> On 5/9/2011 4:25 AM, Antonio CHESSA wrote:
> > apple =
> > [["a","b","c"],[1,2,3,4,5,6],["antony","max","sandra","seb
> > astian"]]
> >for j in range (len(apple[i])):
> > print apple[i][j]
>
> While this illustrate double indexing, it
On Tuesday 10 May 2011 04:13:55 pb wrote:
> On May 9, 3:34 pm, Robert Kern wrote:
> > On 5/9/11 3:35 AM, pb wrote:
> > > On May 9, 12:29 am, Terry Reedy wrote:
> > >> On 5/8/2011 6:44 AM, pb wrote:
> > >>> Hi,
> > >>> I', having trouble with scipy.
> > >>
> > >> If you do not get an answer here,
On Tuesday 03 May 2011 16:00:05 Terry Reedy wrote:
> On 5/3/2011 1:04 AM, Stefan Behnel wrote:
> > The bad thing about this recipe is that it requires quite a
> > bit of background knowledge in order to infer that the
> > code the developer is looking at is actually correct.
>
> The main math know
On Monday 02 May 2011 19:09:38 jacek2v wrote:
> On May 2, 9:48 am, Algis Kabaila wrote:
> > On Monday 02 May 2011 17:19:57 rusi wrote:
> > > On May 2, 12:08 pm, Algis Kabaila
> >
> > wrote:
> > > > Actually, Bazaar is more convenient than rcs for a
>
On Monday 02 May 2011 17:19:57 rusi wrote:
> On May 2, 12:08 pm, Algis Kabaila
wrote:
> > Actually, Bazaar is more convenient than rcs for a single
> > user, as the repository can be the working directory (with
> > a "hidden" .bzr directory that stores diffs
On Monday 02 May 2011 13:22:44 Ben Finney wrote:
> rusi writes:
> > You may want to look at rcs if you are in the space where
>
> But today, Bazaar or Mercurial fill that role just as well:
> quick simple set up, good tool support (yes, even in Emacs
> using VC mode), and easy to use for easy thi
On Thursday 28 April 2011 11:23:51 Thomas 'PointedEars' Lahn
wrote:
> Chris Angelico wrote:
> > Rusty Scalf wrote:
> >> list1 = ['pig', 'horse', 'moose']
> >> list2 = ['62327', '49123', '79115']
> >> n = 2
> >> s2 = "list" + `n`
>>> "list" + 'n'
'listn'
>>>
And IMHO you did not want that, did yo
On Thursday 28 April 2011 01:53:18 Kruptein wrote:
> Hey,
>
> I released a new version (0.2.5) of my pythonic text-editor
> called Deditor.
>snip...
> ( only a .deb is available for download now, if you would
> like another format (.tar.gz) please comment )
Congratulations! Though I am happy wi
On Wednesday 27 April 2011 20:56:20 John Pinner wrote:
> On Apr 26, 4:28 am, Gnarlodious wrote:
> > I have an SQLite query that returns a list of tuples:
> >
> > [('0A',), ('1B',), ('2C',), ('3D',),...
> >
> > What is the most Pythonic way to loop through the list
> > returning a list like this?
On Wednesday 27 April 2011 09:41:53 Ben Finney wrote:
> Chris Angelico writes:
> > As other people have said, version control is very handy. I
> > use git myself, but imho the choice of _which_ VCS you use
> > is far less important than the choice of _whether_ to use
> > one.
>
> True enough. But
On Wednesday 27 April 2011 04:31:19 CM wrote:
> > I guess it depends on your project, but that sounds
> > needlessly complex and way too tough with a VCS. I'd say
> > just don't go there.
>
> (Whoops, I meant way too tough *without* a VCS, not with)
And read your own emails *before* sending them
On Wednesday 27 April 2011 03:59:25 Thomas Rachel wrote:
> Am 26.04.2011 16:39, schrieb snorble:
> > When I write a Python app, I have several unorganized
> I don't see how these tools will help to get up to date the
> way you describe it - but all other issues are well coped
> with using a VCS. I
On Tuesday 26 April 2011 22:19:08 Gnarlodious wrote:
> On Apr 25, 10:59 pm, Steven D'Aprano wrote:
> > In Python 3, map becomes lazy and returns an iterator
> > instead of a list, so you have to wrap it in a call to
> > list().
>
> Ah, thanks for that tip. Also works for outputting a tuple:
> list
On Wednesday 27 April 2011 02:33:00 Ariel wrote:
> with commands.getoutput(one_comand.encode('utf-8')) it works
> !!!
>
> On Tue, Apr 26, 2011 at 6:22 PM, Ariel
wrote:
> > And what about if after the string is concat I want it to
> > pass is to the command line to do anything else, for
> > ins
On Monday 25 April 2011 20:49:34 Jonathan Hartley wrote:
> On Apr 20, 2:43 pm, Andreas Tawn
wrote:
> > > Algis Kabaila writes:
> > > > Are there any modules for vector algebra (three
> > > > dimensional vectors, vector addition, subtraction,
> > > &g
On Monday 25 April 2011 12:59:38 rusi wrote:
> On Apr 25, 4:49 am, Robert Kern wrote:
> > On 4/22/11 7:32 PM, Algis Kabaila wrote:
> > > On Saturday 23 April 2011 06:57:23 sturlamolden wrote:
> > >> On Apr 20, 9:47 am, Algis Kabaila
> > >
> > >
On Saturday 23 April 2011 14:13:31 sturlamolden wrote:
> On Apr 23, 2:32 am, Algis Kabaila
wrote:
> > Thanks for that. Last time I looked at numpy (for Python3)
> > it was available in source only. I know, real men do
> > compile, but I am an old man... I will compile if
On Saturday 23 April 2011 06:57:23 sturlamolden wrote:
> On Apr 20, 9:47 am, Algis Kabaila
wrote:
> > Are there any modules for vector algebra (three dimensional
> > vectors, vector addition, subtraction, multiplication
> > [scalar and vector]. Could you give me a referen
On Friday 22 April 2011 11:43:26 Gregory Ewing wrote:
> Algis Kabaila wrote:
> > the Vector3 class
> > is available without any prefix euclid:
> >
> > import euclid
> > v = Vector3(111.., 222.2, 333.3)
>
> Doesn't work that way for me:
>
> Py
On Thursday 21 April 2011 01:49:57 Andreas Tawn wrote:
> > On Apr 20, 6:43 am, Andreas Tawn
wrote:
> > > > Algis Kabaila writes:
> > > > > Are there any modules for vector algebra (three
> > > > > dimensional vectors, vector addition, subtract
On Thursday 21 April 2011 03:15:50 Ron wrote:
> Hey everyone.
>
> I've written an online interactive Python tutorial atop
> Google App Engine: http://www.learnpython.org.
>
> All you need to do is log in using your Google account and
> edit the wiki to add your tutorials.
>
> Read more on the we
Hi,
Are there any modules for vector algebra (three dimensional
vectors, vector addition, subtraction, multiplication [scalar
and vector]. Could you give me a reference to such module?
platform - ubuntu 10.10 (Linux), Python 3.1 or higher.
Thanks for your help to avoid re-invention of the whee
On Saturday 16 April 2011 16:46:10 geremy condra wrote:
> On Fri, Apr 15, 2011 at 10:21 PM, harrismh777
> wrote:
>
>
>
> This looks to me like an application of the troll motto "if
> you can't dazzle them with brilliance, baffle them with
> bull". It certainly does nothing to prove your claim,
On Saturday 16 April 2011 20:03:22 jmfauth wrote:
> On 16 avr, 06:16, harrismh777 wrote:
> > By default the sys.path always shows the directory python
> > was opened in, usually the users home directory. With
> > .profile you can set the path any way you want... most
> > useful for setting up sp
On Saturday 16 April 2011 14:16:59 harrismh777 wrote:
> Algis Kabaila wrote:
> > Is PYTHONPATH a system variable that sets the
> > path for several sessions and if so, where in the system is
> > it? Do I need to create one for setting python path for
> > several session
On Saturday 16 April 2011 15:55:59 harrismh777 wrote:
> Alec Taylor wrote:
> > Please continue your recommendations.
>
> IDLE?
>
> (works for me)
>
> 3.2 is working much better for me this week... :)
>
> (thanks)
>
> kind regards,
> m harris
IDLE is ok and it comes by default with Python.
On Friday 15 April 2011 19:21:12 Chris Rebert wrote:
> On Fri, Apr 15, 2011 at 1:33 AM, Algis Kabaila
wrote:
> > Hi,
> >
>>snip..
> It is an environment variable:
> http://en.wikipedia.org/wiki/Environment_variable
>
> Alternatively, you can use a .pth file t
Hi,
An elementary question that is bugging me, regarding sys.path
values.sys.path can be altered easily, but the changes last for
the current session only. I would like the changes to stay for
several sessions. Is PYTHONPATH a system variable that sets the
path for several sessions and if so,
On Friday 15 April 2011 02:13:51 christian wrote:
> Hello,
>
> i'm not very experienced in python. Is there a way doing
> below more memory efficient and maybe faster.
> I import a 2-column file and then concat for every unique
> value in the first column ( key) the value from the second
> colum
On Saturday 26 March 2011 02:27:12 Jason Swails wrote:
> I'm guessing you have something like
>
> list1=['1.0', '2.3', '4.4', '5.5', ...], right?
>
> You can do this:
>
> for i in range(len(list1)):
> list1[i] = float(list1[i])
Better,
list1 = [float(v) for v in list1]
One statement only -
On Wednesday 16 March 2011 05:48:14 Tim Morneau wrote:
> You have to add the colon to the end of the statement if this
> is an accurate representation of the statement so:
>
> "for i in range(len(list)):" instead of "for i in
> range(len(list))"
>
It seems to me that it would be simpler to
On Friday 11 March 2011 14:13:52 Paul Rubin wrote:
> Robert writes:
> > Is there a push to one toolkit or the other?
>
> Tkinter or a simple web app with cgihttpserver. I haven't
> ever had occasion to write a fancy desktop app and I think
> of them as a mostly-obsolete medium, though I guess th
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