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
--
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=[1,2,3]
x =
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 to
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
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
On Sunday 15 May 2011 19:44:29 Daniel Kluev wrote:
On Sun, May 15, 2011 at 8:15 PM, Algis Kabaila
akaba...@pcug.org.au wrote:
Hi All,
I would really appreciate any comments and suggestions for
the Vectors.py module, which can be downloaded from
- If you intend to provide
On Friday 13 May 2011 18:47:50 Hans Georg Schaathun wrote:
On Thu, 12 May 2011 23:20:20 +1000, Chris Angelico
ros...@gmail.com 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
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 equal:
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 enable the
standard matrix notation a[i, j
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-dimensional array is
well known and widely used
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
def __getitem__(self, dex):
i,j = dex
return self
On Tuesday 10 May 2011 04:13:55 pb wrote:
On May 9, 3:34 pm, Robert Kern robert.k...@gmail.com wrote:
On 5/9/11 3:35 AM, pb wrote:
On May 9, 12:29 am, Terry Reedytjre...@udel.edu wrote:
On 5/8/2011 6:44 AM, pb wrote:
Hi,
I', having trouble with scipy.
If you do not get an
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 can be simplified
to
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 knowledge
On Monday 02 May 2011 13:22:44 Ben Finney wrote:
rusi rustompm...@gmail.com 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
On Monday 02 May 2011 17:19:57 rusi wrote:
On May 2, 12:08 pm, Algis Kabaila akaba...@pcug.org.au
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).
Dont exactly
On Monday 02 May 2011 19:09:38 jacek2v wrote:
On May 2, 9:48 am, Algis Kabaila akaba...@pcug.org.au wrote:
On Monday 02 May 2011 17:19:57 rusi wrote:
On May 2, 12:08 pm, Algis Kabaila akaba...@pcug.org.au
wrote:
Actually, Bazaar is more convenient than rcs for a
single user
On Wednesday 27 April 2011 20:56:20 John Pinner wrote:
On Apr 26, 4:28 am, Gnarlodious gnarlodi...@gmail.com 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
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 with
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 you?
OldAl.
--
Algis
On Monday 25 April 2011 20:49:34 Jonathan Hartley wrote:
On Apr 20, 2:43 pm, Andreas Tawn andreas.t...@ubisoft.com
wrote:
Algis Kabaila akaba...@pcug.org.au writes:
Are there any modules for vector algebra (three
dimensional vectors, vector addition, subtraction,
multiplication
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 isaacr...@gmail.com
wrote:
And what about if after the string is concat I want it to
pass is to the command line to do anything else,
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:
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 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 09:41:53 Ben Finney wrote:
Chris Angelico ros...@gmail.com 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
On Monday 25 April 2011 12:59:38 rusi wrote:
On Apr 25, 4:49 am, Robert Kern robert.k...@gmail.com 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 Kabailaakaba...@pcug.org.au
wrote:
Are there any
On Saturday 23 April 2011 14:13:31 sturlamolden wrote:
On Apr 23, 2:32 am, Algis Kabaila akaba...@pcug.org.au
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
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:
Python 2.7 (r27:82500, Oct 15 2010, 21:14:33)
[GCC 4.2.1 (Apple Inc
On Saturday 23 April 2011 06:57:23 sturlamolden wrote:
On Apr 20, 9:47 am, Algis Kabaila akaba...@pcug.org.au
wrote:
Are there any modules for vector algebra (three dimensional
vectors, vector addition, subtraction, multiplication
[scalar and vector]. Could you give me a reference
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 website.
On Thursday 21 April 2011 01:49:57 Andreas Tawn wrote:
On Apr 20, 6:43 am, Andreas Tawn andreas.t...@ubisoft.com
wrote:
Algis Kabaila akaba...@pcug.org.au writes:
Are there any modules for vector algebra (three
dimensional vectors, vector addition, subtraction,
multiplication
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
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. Eric4 for
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 sessions?
snip...
Of course this only
On Saturday 16 April 2011 20:03:22 jmfauth wrote:
On 16 avr, 06:16, harrismh777 harrismh...@charter.net 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
On Saturday 16 April 2011 16:46:10 geremy condra wrote:
On Fri, Apr 15, 2011 at 10:21 PM, harrismh777
harrismh...@charter.net wrote:
snip
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
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
columns.
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
On Friday 15 April 2011 19:21:12 Chris Rebert wrote:
On Fri, Apr 15, 2011 at 1:33 AM, Algis Kabaila
akaba...@pcug.org.au wrote:
Hi,
snip..
It is an environment variable:
http://en.wikipedia.org/wiki/Environment_variable
Alternatively, you can use a .pth file to add directories
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 - long
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 simply
On Friday 11 March 2011 14:13:52 Paul Rubin wrote:
Robert sigz...@gmail.com 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
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