Re: Python discussed in Nature
Chris Angelico ros...@gmail.com writes: On Sat, Feb 14, 2015 at 6:40 AM, John Ladasky john_lada...@sbcglobal.net wrote: The default font that the Geany program editor uses on my Ubuntu system renders everything I've tried. When I look up that font in Geany's Preferences menu, it is called, simply, monospace. That's a font alias. Unfortunately, I've never yet figured out a straight-forward way to snap the pointer; when you know it, it's easy... % fc-match mono DejaVuSansMono.ttf: DejaVu Sans Mono Book % -- https://mail.python.org/mailman/listinfo/python-list
Re: What does zip mean?
Grant Edwards invalid@invalid.invalid writes: No, you don't. That's not how a zipper works. Each tooth from side A, isn't bound with one from side B. It's bound with _two_ of them from side B. And each of those is in turn bound with an additional tooth from side A, and so on... In your program you have two lists, whose elements `zip` returns bound together in pairs What the zipper on a coat does is convert two separate sequences into a single sequence where the members alternate between the two input sequences. IOW if we want to do something analogous to a zipper fastener it should do this: zip([a,b,c,d,e,f],[1,2,3,4,5,6]) = [a,1,b,2,c,3,d,4,e,5,f,6] Item '1' is bound equally to item 'a' and 'b'. Item 'b' is bound equally to item '1' and '2'. I love you folks of CLP -- https://mail.python.org/mailman/listinfo/python-list
Re: I don't read docs and don't know how to use Google. What does the print function do?
Clayton Kirkwood c...@godblessthe.us writes: Although I suspect for a price you could bring all of your professional programming jobs to somebody here, but I think you would pay out more than you would make. s/ here/ else/ and your assumption can be falsified -- https://mail.python.org/mailman/listinfo/python-list
Re: What does zip mean?
On 11/09/2014 11:44 AM, satishmlm...@gmail.com wrote: What does zip return in the following piece of code? To help you understanding what is the `zip` builtin, please forget about PKZip etc and think about the _zip fastener_ or _zipper_ in your bag or in your trousers In the bag you have two sequences of teeth that the zipper binds together in interlocking pairs In your program you have two lists, whose elements `zip` returns bound together in pairs -- https://mail.python.org/mailman/listinfo/python-list
Re: I am out of trial and error again Lists
Rustom Mody rustompm...@gmail.com writes: What would you say to a person who - Buys a Lambhorgini I'd say: Don't buy a Lambhorgini from that nice guy you met at a party, but buy a Lamborghini by an authorized dealer ;-) -- I was a kid when Lamborghini launched the Miura! -- https://mail.python.org/mailman/listinfo/python-list
Re: I am out of trial and error again Lists
ERRATA CORRIGE: many different circumstances, by the very, very helpful folks of clp. many different circumstances, by the very, very helpful folks of clpy -- sapete contare fino a venticinque? Olimpia Milano Jugoplastika Split Partizan Beograd Roberto Premier Duska Ivanovic Zarko Paspalj -- https://mail.python.org/mailman/listinfo/python-list
Re: I am out of trial and error again Lists
Rustom Mody rustompm...@gmail.com writes: [As best as I can make out the OP is not using the standalone interpreter nor idle nor (the many options like) python-interpreter-inside-emacs nor ipython nor ... but CodeSkulptor http://www.codeskulptor.org/] CodeSkulptor has been mentioned recently by S4H, and he had explained why he uses CodeSkulptor, but I cannot remember anything of the explanation... -- Sarebbe ora gli scienziati italiani mostrassero un po' i coglioni si`, vabbe`, ma a chi? -- PLS, in IFQ -- https://mail.python.org/mailman/listinfo/python-list
Re: I am out of trial and error again Lists
Seymore4Head Seymore4Head@Hotmail.invalid writes: Because most of the practice I am getting is not using Python. I use Codeskulptor. Seymore, it's been months that you're struggling with python, if you happen to own a computer could you please take the time to install python on it and familiarise with the interactive interpreter? I'll see that as a personal favor. If you have to hand in assignments using codeskulptor or are in any other way bound by your institution to use that service you could anyway use the interactive interpreter on your pc, applying the debugging and self-learning techniques that were shown to you, in many different circumstances, by the very, very helpful folks of clp. thank you for your attention -- https://mail.python.org/mailman/listinfo/python-list
Re: Question about PANDAS
Ryan Shuell ryanshu...@gmail.com writes: Thanks guys. I just feel frustrated that I can't do something useful. I had read many of your messages in the recent past, and I'm under the impression that your frustration has more to do with Python the Infrastructure rather than Python the Language my suggestions will somehow reiterate what was told you in previous threads, 1. scrap everything python from your hard disk and your registry, using unistall as far as possible 2. choose ONE flavour of python, either 2.7.x or 3.4.x - future is with 3.4, - most exaples you'll find were written (are still written...) for 2.7.x 3. the Pyton distribution from official sources contains piles of stuff (batteries included is the motto) but you seem interested in what is called the python scientific stack and this is not there. If you want at once the stdlib AND the great majority of the extra modules you're looking for AND an easy way to install other packages, there are quite a number of third party distributions that fit your ticket very well: entought, anaconda, active state, pyxy, all of them should be good enough but I'n not a Windows guy and I'm not be able to judge. Anyway, read or ask for advice on python windows distributions, chose one, _install using the_ _defaults_, STICK WITH THAT DISTRIBUTION, familiarizing with its infrastructure in terms of installing extra packages, setting virtual environments, using the development tools it offers etc in my very humble opinion, you are discomforted by the multiplicity of the solutions and your quest for the best one... choose one, maybe not the best one for you but trust me, it will be good enough! as soon as you'll be in good terms with Python the language and python the infrastructure, as presented to you by a single language version and a single 3rd party distribution, you will gather momentum in a very short time my best wishes, g -- https://mail.python.org/mailman/listinfo/python-list
Re: [OT] spelling colour / color was Re: Toggle
duncan smith buzzard@invalid.invalid writes: [...] It was the top / bottom of the [TV] programme that I didn't immediately get, because I was thinking of a timeline running left to right (perhaps rather than the script used by the presenters). is it just me that thinks of a timeline running from the wall behind the tv set into my dinette? -- https://mail.python.org/mailman/listinfo/python-list
Re: while loop - multiple condition
Tim Chase python.l...@tim.thechases.com writes:
On 2014-10-12 22:16, Marko Rauhamaa wrote:
is equivalent with
while ans.lower()[0] != 'y':
ans = input('Do you like python?')
And still better improved with
while ans[:1].lower() != 'y':
ans = input('Do you like python?')
yok is Turkish for an EMPHATIC NO
(or, at least, that's what I was led to think many years ago)
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Re: cmd.exe on WIndows - problem with displaying some Unicode characters
Wiktor look@signature.invalid writes: I'm not starting from scratch. I'm using packages 'termcolor', 'colorama' and 'colorconsole' the 'urwid' package could be useful for similar projects but cite requires Linux, OSX, Cygwin or other unix-like OS/cite so I guess it's of no use for you... ciao g -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello and sorry for disturbing !
Rustom Mody rustompm...@gmail.com writes: For ubuntu you should need nothing for python. In other words python should run on a basic ubuntu installation. From the shell just type python and the interpreter should start. For more specialized work there are dozens (maybe hundreds?) of packages in the apt repos. % apt-cache show pythonTABTAB Display all 2776 possibilities? (y or n) -- https://mail.python.org/mailman/listinfo/python-list
Re: Python solve problem with string operation
Nac Temha nacctte...@gmail.com writes: Hi everyone, I want to do operation with chars in the given string. Actually I want to grouping the same chars. For example; input : 3443331123377 operation- (3)(44)()(333)(11)(2)(33)(77) output: 34131237 How can I do without list, regular expression. just using string operations. Using an effective methods of python for this problem. % cat a.py def f(s,n): if s[n+1] == s[n]: return s[:n]+s[n+1:], n return s, n+1 i = 3443331123377 n = 0 while n+1 != len(i): i, n = f(i, n) print i % python a.py 34131237 % -- your instructor is a mean person -- https://mail.python.org/mailman/listinfo/python-list
Re: Python solve problem with string operation
giacomo boffi pec...@pascolo.net writes: % python a.py 34131237 % cat a.py i=3443331123377;n=0 while n+1!=len(i):i,n=(i[:n]+i[n+1:],n) if i[n+1]==i[n] else (i,n+1) print i % python a.py 34131237 % -- for Nikos -- https://mail.python.org/mailman/listinfo/python-list
Re: ASCII and Unicode
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes: On Sat, 07 Dec 2013 17:05:34 +0100, giacomo boffi wrote: Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes: Ironically, your post was not Unicode. [...] Your post was sent using a legacy encoding, Windows-1252, also known as CP-1252 i access rusi's post using a NNTP server, and in his post i see Content-Type: text/plain; charset=UTF-8 But *which post* are you looking at? blush the wrong one.../ i.e, the one JUST BEFORE your change of subject --- if i look at the ellipsis post, i see the same encoding that you have mentioned sorry for the confusion -- https://mail.python.org/mailman/listinfo/python-list
Re: ASCII and Unicode
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes: Ironically, your post was not Unicode. [...] Your post was sent using a legacy encoding, Windows-1252, also known as CP-1252 i access rusi's post using a NNTP server, and in his post i see Content-Type: text/plain; charset=UTF-8 is it possible that what you see is an artifact of the gateway? -- https://mail.python.org/mailman/listinfo/python-list
Re: Handling 3 operands in an expression without raising an exception
Νίκος nikos.gr...@gmail.com writes: IF it can also be written in one-line def f(x,n,w):return(lambda y=f(x[::2],n/2,w[::2]),z=f(x[1::2],n/2,w[::2]):reduce(lambda x,y:x+y,zip(*[(y[k]+w[k]*z[k],y[k]-w[k]*z[k]) for k in range(n/2)])))()if n1 else x -- anch'io la penso come me, ma -- SteO153, in IHC -- https://mail.python.org/mailman/listinfo/python-list
Re: Handling 3 operands in an expression without raising an exception
Joel Goldstick joel.goldst...@gmail.com writes: On Sun, Sep 29, 2013 at 11:28 AM, giacomo boffi pec...@pascolo.net wrote: Νίκος nikos.gr...@gmail.com writes: IF it can also be written in one-line def f(x,n,w):return(lambda y=f(x[::2],n/2,w[::2]),z=f(x[1::2],n/2,w [::2]):reduce(lambda x,y:x+y,zip(*[(y[k]+w[k]*z[k],y[k]-w[k]*z[k]) for k in range(n/2)])))()if n1 else x I've been reading along and learning some really obscure coding patterns. well, the obscure patterns aren't mine, they were contributed by some it.comp.python regulars, to which credit is due if credit is due (please ask google groups for the individual contributions) why? to show a recreational one liner from which Νίκος could learn something, one way or another -- X = f(x,n,[exp(-2*pi*1j*k/n) for k in range(n/2)]) -- https://mail.python.org/mailman/listinfo/python-list
Re: Handling 3 operands in an expression without raising an exception
giacomo boffi pec...@pascolo.net writes: it.comp.python oops, it.comp.LANG.python -- I do desire we may be better strangers. -- https://mail.python.org/mailman/listinfo/python-list
Re: Help with python functions?
kjaku...@gmail.com writes:
def temp(T, from_unit, to_unit):
conversion_table = {('c', 'k'):lambda x: x + 273.15,
('c', 'f'):lambda x: (x * (9.0/5)) + 32,
('k', 'c'):lambda x: x - 273.15,
('k', 'f'):lambda x: (x * (9.0/5)) - 459.67,
('f', 'c'):lambda x: (x - 32) * (5.0/9),
('f', 'k'):lambda x: (x + 459.67) * (5.0/9)}
f = conversion_table[(from_unit.lower(), to_unit.lower())]
return f(T)
Would this be correct?
not always:
temp(-300.0, 'c', 'k')
-26.8500023
--
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VS gli sciocchi puntigli di quel cretino del mio vicino
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Re: CSV to matrix array
Ana Dionísio anadionisio...@gmail.com writes:
Hello!
I have a CSV file with 20 rows and 12 columns and I need to store it
as a matrix.
array=numpy.array([row for row in csv.reader(open('Cenarios.csv'))])
NB: i used array= as in your sample code, BUT
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PMW+BLT on windows, any chance?
on my linux box i have a small python program that draws some 2-d line graphs in a window aside a graphical interface to change the problem data as you may have guessed from the subject line, the gui widgets are done with help from PMW [1], and the graps are done by the PMW - BLT[2] interface now i'd like to port the whole mess to windows to give it away to unix-impaired people, but i cannot find a precompiled BLT for my window (virtual)box otoh, even if i find such a rare pearl, every reference i found on google implies that BLT 2.4z works with tk8.5 while python 2.7 comes with tk 8.5 1. is it possible to do what i wish to do? 2. is it worth? 3. if it is impossible or unworty, i'd better rewrite my program to use which graphics library? tia, gb [1] Python Mega Widgets is a pure python implementation of complex, expandable widgets built on tkinter, i use its input widgets because they do data validation [2] Blt is a library that enhances tcl/tk adding some useful stuff, in my case i use the 2-d graph widget -- We have met the enemy and he is us. --- Pogo. -- http://mail.python.org/mailman/listinfo/python-list
Re: Validating Entry in tkinter
Saul Spatz saul.sp...@gmail.com writes: In tcl/tk an Entry widget can be set to validate its contents with the validate option. [...] Can one do something like this in tkinter? i read the thread and nobody mentioned the python mega widget (Pmw) toolkit, from whose docs i quote the following Pmw.EntryField() - entry widget with validation [...] Validation is performed early, at each keystroke or other event which modifies the text. However, if partially valid text is permitted, the validity of the entered text can be checked just before it is to be used, which is a form of late validation. [...] -- http://mail.python.org/mailman/listinfo/python-list
Re: Convert AWK regex to Python
J jnr.gonza...@googlemail.com writes:
cat logs/pdu_log_fe.log | awk -F\- '{print $1,$NF}' | awk -F\. '{print
$1,$NF}' | awk '{print $1,$4,$5}' | sort | uniq | while read service command
status; do echo Service: $service, Command: $command, Status: $status,
Occurrences: `grep $service logs/pdu_log_fe.log | grep $command | grep
$status | wc -l | awk '{ print $1 }'` logs/pdu_log_fe_clean.log; done
This AWK command gets lines which look like this:-
2011-05-16 09:46:22,361 [Thread-4847133] PDU D G_CC_SMS_SERVICE_51408_656.O_
CC_SMS_SERVICE_51408_656-ServerThread-VASPSessionThread-7ee35fb0-7e87-11e0-a2da-00238bce423b-TRX
- 2011-05-16 09:46:22 - OUT - (submit_resp: (pdu: L: 53 ID: 8004 Status:
0 SN: 25866) 98053090-7f90-11e0-a2da-00238bce423b (opt: ) )
And outputs lines like this:-
CC_SMS_SERVICE_51408 submit_resp: 0
i see some discrepancies in the description of your problem
1. if i echo a properly quoted line like this above in the pipeline
formed by the first three awk commands i get
$ echo $likethis | awk -F\- '{print $1,$NF}' \
| awk -F\. '{print$1,$NF}' \
| awk '{print $1,$4,$5}'
2011 ) )
$
not a triple 'service command status'
2. with regard to the final product, you script outputs lines like in
echo Service: $service, [...]
and you say that it produces lines like
CC_SMS_SERVICE_51408 submit_resp:
WHATEVER, the abnormous run time is due to the fact that for every
output line you rescan again and again the whole log file
IF i had understood what you want, imho you should run your data
through sort and uniq -c
$ awk -F\- '{print $1,$NF}' $file \
| awk -F\. '{print$1,$NF}' \
| awk '{print $1,$4,$5}'| sort | uniq -c | format_program
uniq -c drops repeated lines from a sorted input AND prepends to each
line the count of equal lines in the original stream
hth
g
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Re: [pyplot] using f1=figure(1)
eryksun () eryk...@gmail.com writes: figure(fig1.number) plot(...) that's already much better than figure(1);...;figure(2);... Alternatively, you can use the plot methods of a particular axes: fig1 = figure() ax1 = axes() fig2 = figure() ax2 = axes() ax1.plot(...) ax2.plot(...) that's nicer It works the same for subplots: [...] thanks a lot -- le mie sacrosante questioni di principio VS gli sciocchi puntigli di quel cretino del mio vicino -- http://mail.python.org/mailman/listinfo/python-list
Re: Fun python 3.2 one-liner
Chris Angelico ros...@gmail.com writes: def f(x,n,w): return x if n==1 else\ (lambda x0=f(x[::2],n/2,w[::2]),\ x1=f(x[1::2],n/2,w[::2]): reduce(lambda a,b: a+b ,\ zip(*[(x0[k]+w[k]*x1[k],\ x0[k]-w[k]*x1[k])\ for k in range(n/2)])))() What sort of parameters does this take? So far all I can figure out is that n is an integer and x and w are sliceables, but I'm not sure whether x and w should be strings or arrays. def direct_fft(x,n): return f(x,n,[exp(-2*pi*1j*k/n) for k in range(n/2)]) def inverse_fft(x,n): return [x/n for x in f(x,n,[exp(+2*pi*1j*k/n) for k in range(n/2)])] -- le mie sacrosante questioni di principio VS gli sciocchi puntigli di quel cretino del mio vicino -- http://mail.python.org/mailman/listinfo/python-list
[pyplot] using f1=figure(1)
i executed the following interactions and i remained disappointed $ python Python 2.6.6 (r266:84292, Dec 27 2010, 00:02:40) [GCC 4.4.5] on linux2 Type help, copyright, credits or license for more information. from pylab import * f1=figure(1) f2=figure(2) f1 matplotlib.figure.Figure object at 0xb745668c f2 matplotlib.figure.Figure object at 0x8df834c plot(sin(linspace(0,10)),figure=f1) [matplotlib.lines.Line2D object at 0x8df8fac] plot(cos(linspace(0,10)),figure=f2) [matplotlib.lines.Line2D object at 0x8df8f0c] show() i'm surely off by one in my understanding of the plot command, as i expected a sine in figure 1 and a cosine in 2, while what i got was a blank figure 1 and both the sine and the cosine in figure 2 can anyone help me? tia gb -- http://mail.python.org/mailman/listinfo/python-list
Re: [pyplot] using f1=figure(1)
Blockheads Oi Oi breamore...@yahoo.co.uk writes: I don't know why but this works fine. f1=figure(1) plot(sin(linspace(0,10)),figure=f1) f2=figure(2) plot(cos(linspace(0,10)),figure=f2) show() it works as well (with a proper t...) plot(sin(t);figure(2);plot(cos(t));show() because that's the way it is advised to do in help(plot) one can read that in the named arguments that are accepted from plot, you can say also figure=figurehandle, but it is evident that i misundertood the issue You're also likely to get more answers if you ask on the mailing list here https://lists.sourceforge.net/lists/listinfo/matplotlib-users. another mailing list? really i have to? smilies, lots of -- Fan culo a quelli che quando si svegliano la mattina, non importa se sono leoni o gazzelle, sono comunque delle bestie. -- Zonker, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: Problems of Symbol Congestion in Computer Languages
Chris Jones cjns1...@gmail.com writes: [...] most any software of note appears to have come out of cultures where English is either the native language, or where the native language is either relatively close to English... i do acknowledge your most, but how do you spell Moon in Portuguese? -- http://mail.python.org/mailman/listinfo/python-list
Re: Problems of Symbol Congestion in Computer Languages
Steven D'Aprano steve+comp.lang.pyt...@pearwood.info writes: A dedicated concatenation operator would have avoided that mess. I don't quite agree that the mess is as large as you make out, but yes, more operators would be useful. am i wrong, or | is still available? -- l'amore e' un sentimento a senso unico. a volte una via comincia dove finisce un'altra e viceversa -- Caldana, in IFQ -- http://mail.python.org/mailman/listinfo/python-list
Re: Should there be a 'core' python install?
Martin P. Hellwig martin.hell...@dcuktec.org writes: Yep when I started looking much more at other toolkits, I started to like Tkinter more and more. Maybe its simplicity, maybe the good design of Tk, -- BOMBED BY AIRCRAFT. SINKING. U-824. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using property() to extend Tkinter classes but Tkinter classes are old-style classes?
Terry Reedy tjre...@udel.edu writes: On 11/28/2010 3:47 PM, pyt...@bdurham.com wrote: I had planned on subclassing Tkinter.Toplevel() using property() to wrap access to properties like a window's title. After much head scratching and a peek at the Tkinter.py source, I realized that all Tkinter classes are old-style classes (even under Python 2.7). 1. Is there a technical reason why Tkinter classes are still old-style classes? To not break old code. Being able to break code by upgrading all classes in the stdlib was one of the reasons for 3.x. In 3.x, are Tkinter classes still derived by old-style classes? -- http://mail.python.org/mailman/listinfo/python-list
Re: elementwise multiplication of 2 lists of numbers
harryos oswald.ha...@gmail.com writes: hi I have 2 lists of numbers,say x=[2,4,3,1] y=[5,9,10,6] I need to create another list containing z=[2*5, 4*9, 3*10, 1*6] ie =[10,36,30,6] I did not want to use numpy or any Array types.I tried to implement this in python .I tried the following z=[] for a,b in zip(x,y): z.append(a*b) This gives me the correct result.Still,Is this the correct way? Or can this be done in a better way? what you've done is correct, rather than in better ways this can be done in different ways first, there is list comprehension [x*y for x,y in zip([2,4,3,1],[5,9,10,6])] [10, 36, 30, 6] if you feel that zip looks like an artifact, python has some functional bit map(lambda x,y: x*y, [2,4,3,1],[5,9,10,6]) [10, 36, 30, 6] if you feel that lambda looks like an artifact, from operator import mul map(mul, [2,4,3,1],[5,9,10,6]) [10, 36, 30, 6] hth, -- In tutti noi c'è un lato interista Lato perlopiù nascosto dalle mutande. --- Basil Fawlty, a reti unificate (IFQ+ISC) -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Arguments from the command line
Dennis Lee Bieber wlfr...@ix.netcom.com writes: On Fri, 10 Sep 2010 12:25:17 +0200, Giacomo Boffi giacomo.bo...@polimi.it declaimed the following in gmane.comp.python.general: Lawrence D'Oliveiro l...@geek-central.gen.new_zealand writes: In message 8662yfklzu@aiuole.stru.polimi.it, Giacomo Boffi wrote: Dennis Lee Bieber wlfr...@ix.netcom.com writes: FORTRAN just differentiates by having the main file start with PROGRAM random_name whereas subfiles are all either (or both) SUBROUTINE another_name(args) FUNCTION that_other_name(args) no BLOCKDATA? I think you mean COMMON. i meant BLOCKDATA It exists but I've only seen it used once... And I don't recall it being executable in the same way as program/function/subroutine. i simply meant that the BLOCKDATA statement can begin a subfile as well as SUBROUTINE or FUNCTION -- Sarò un'ingenua ma continuo a pensarla come prima, anche se probabilmente i fatti mi smentiscono. -- Francy, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: How Python works: What do you know about support for negative indices?
Ben Finney ben+pyt...@benfinney.id.au writes: Raymond Hettinger pyt...@rcn.com writes: It doesn't seem to be common knowledge when and how a[x] gets translated to a[x+len(x)]. So, here's a short info post on how Python supports negative indices for sequences. Thanks for this. Could you post your messages using a channel that doesn't arbitrarily split your paragraphs into long-short-long-short lines? hi Ben, i see that you uses gnus... well, it's gnus that does the unwanted formatting try C-u g, as dettailed below, ciao g runs `gnus-summary-show-article' `gnus-summary-show-article' is an interactive compiled Lisp function -- loaded from gnus-sum (gnus-summary-show-article optional ARG) Documentation: Force redisplaying of the current article. If ARG (the prefix) is a number, show the article with the charset defined in `gnus-summary-show-article-charset-alist', or the charset input. If ARG (the prefix) is non-nil and not a number, show the raw article without any article massaging functions being run. Normally, the key strokes are `C-u g'. -- la lenza penzola -- PMF, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Arguments from the command line
Lawrence D'Oliveiro l...@geek-central.gen.new_zealand writes: In message 8662yfklzu@aiuole.stru.polimi.it, Giacomo Boffi wrote: Dennis Lee Bieber wlfr...@ix.netcom.com writes: FORTRAN just differentiates by having the main file start with PROGRAM random_name whereas subfiles are all either (or both) SUBROUTINE another_name(args) FUNCTION that_other_name(args) no BLOCKDATA? I think you mean COMMON. i meant BLOCKDATA -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tutor] Arguments from the command line
Dennis Lee Bieber wlfr...@ix.netcom.com writes: FORTRAN just differentiates by having the main file start with PROGRAM random_name whereas subfiles are all either (or both) SUBROUTINE another_name(args) FUNCTION that_other_name(args) no BLOCKDATA? -- http://mail.python.org/mailman/listinfo/python-list
Re: PyGeo
L lamlb...@optusnet.com.au writes: also the PyGeo readme text mentions Numerical python (I think it means Numeric, but I also have NumPy installed) afaict, Numerical python is numpy --- if you look at pygeo home page, the reference to Numerical python is a link to numpy home page on the contrary, there is no import numpy in all the sources of pygeo, and a couples or so of import Numeric, so that the situation is unclear aiuole/../PyGeo-1.0a1 $ find build| grep py$ | xargs grep -n import'.*'numpy aiuole/../PyGeo-1.0a1 $ find build| grep py$ | xargs grep -n import'.*'Numeric build/lib.linux-i686-2.6/pygeo/base/pygeomath.py:1:import Numeric as N build/lib.linux-i686-2.6/pygeo/base/wiresphere.py:2:import Numeric aiuole/../PyGeo-1.0a1 $ to complicate matters, it is not possible to install python-numeric using the apt system on debian unstable i don't know if it is possible to build numeric against the default python (2.6) on my system, further i don't know if it is worthwhile because, at a first sight, it looks like pygeo does not use advanced features of numeric, and replacing numeric with numpy should be very easy -- http://mail.python.org/mailman/listinfo/python-list
Re: looping through possible combinations of McNuggets packs of 6, 9 and 20
Paul Rubin no.em...@nospam.invalid writes: Baba raoul...@gmail.com writes: exercise: given that packs of McNuggets can only be bought in 6, 9 or 20 packs, write an exhaustive search to find the largest number of McNuggets that cannot be bought in exact quantity. Is that a homework problem? yes, and no it was a homework problem, assigned in 2008, as clearly stated by the OP most of what was discussed on the ng was clearly stated in the introduction to the actual problem, so that we can thank Baba for NOT having read the text of the assignment, leavin' us a couple of days of amusing and interesting posts -- Mangiate pure le vostre carote, noi mangeremo le nostre salsicce! -- Claud, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: looping through possible combinations of McNuggets packs of 6, 9 and 20
Baba raoul...@gmail.com writes: Hi Mel, indeed i thought of generalising the theorem as follows: If it is possible to buy n, n+1,~, n+(x-1) sets of McNuggets, for some x, then it is possible to buy any number of McNuggets = x, given that McNuggets come in x, y and z packs. so with diophantine_nuggets(7,10,21) i would need 7 passes result:53 but with (10,20,30) and 10 passes i get no result you need at least an odd number in your set, because summing even numbers only you'll never get an odd result -- http://mail.python.org/mailman/listinfo/python-list
Re: Win7. Why Don't Matplotlib, ... Show up in Control Panel Add-Remove?
Martin v. Loewis mar...@v.loewis.de writes: If you use the bdist_wininst, bdist_msi, or bdist_rpm distutils commands, you get packages which support uninstallations very well. bdist_deb? -- Vorrei andare a lavorare in Sicilia, a max 15 km dal mare. Con chi devo parlare? Col capomafia distrettuale? Oppure bisogna sporcarsi le mani e fare la tessera di FI? -- Marvin, in IFQ -- http://mail.python.org/mailman/listinfo/python-list
Re: Python -- floating point arithmetic
Zooko O'Whielacronx zo...@zooko.com writes: I'm starting to think that one should use Decimals by default and reserve floats for special cases. would you kindly lend me your Decimals ruler? i need to measure the sides of the triangle whose area i have to compute -- http://mail.python.org/mailman/listinfo/python-list
Re: Plotting in batch with no display
Hans Georg Schaathun h.schaat...@surrey.ac.uk writes:
: import matplotlib
: matplotlib.use('agg')
: import pylab
: pylab.plot([1, 3, 5])
: fig = file('foo.png', 'wb')
: pylab.savefig(fig, format='png')
: fig.close()
Raster graphics is not good enough
#ig = file('foo.png', 'wb'
pylab.savefig('foo.png', format='pdf')
that's all
--
http://mail.python.org/mailman/listinfo/python-list
Re: Plotting in batch with no display
Giacomo Boffi giacomo.bo...@polimi.it writes:
Hans Georg Schaathun h.schaat...@surrey.ac.uk writes:
: import matplotlib
: matplotlib.use('agg')
: import pylab
: pylab.plot([1, 3, 5])
: fig = file('foo.png', 'wb')
: pylab.savefig(fig, format='png')
: fig.close()
Raster graphics is not good enough
#ig = file('foo.png', 'wb'
pylab.savefig('foo.png', format='pdf')
that's all
either
matplotlib.use('cairo.pdf')
...
pylab.savefig('foo.pdf')
--
le mie sacrosante questioni di principio
VS gli sciocchi puntigli di quel cretino del mio vicino
--
http://mail.python.org/mailman/listinfo/python-list
Re: if, continuation and indentation
HH henri...@gmail.com writes: if (width == 0 and height == 0 and color == 'red' and emphasis == 'strong' or highlight 100): raise ValueError(sorry, you lose) if (width == 0 and height == 0 and color == 'red' and emphasis == 'strong' or highlight 100): raise ValueError(sorry, you lose) -- compro mobili vecchi - vendo mobili antichi -- http://mail.python.org/mailman/listinfo/python-list
[pylint] why pylint wants only capitals identifiers?
i have this code def example(a): return lambda b: a+b+1 fun = example(10) k_1 = fun(7) ... and pylint tells me [...] C: 4: Invalid name fun (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$) C: 5: Invalid name k_1 (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$) [...] afaict, [A-Z_][A-Z0-9_]* identifiers should be used for constants, and i don't think of fun or k_1 as constants... what's going on? tia, g -- la lenza penzola -- PMF, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: [pylint] why pylint wants only capitals identifiers?
Jean-Michel Pichavant jeanmic...@sequans.com writes: Giacomo Boffi wrote: i have this code def example(a): return lambda b: a+b+1 fun = example(10) k_1 = fun(7) ... and pylint tells me [...] C: 4: Invalid name fun (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$) C: 5: Invalid name k_1 (should match (([A-Z_][A-Z0-9_]*)|(__.*__))$) [...] g Pylint default rules need some tuning ok, but maybe it's not my specific problem (see below) However, given you example, you should not insert code execution at you module level, unless it's required only at the module import. I dont know what is your module module? this was not well specified in my OP, but i'd rather speak of a script instead of a module... maybe should i use the if __name__ == __main__: main() idiom to keep happy my pylint? oh, let's do it... it should be easy isn't it? thanks, g -- I wish we'd come to our senses and see there is no truth In those who promote the confusion for this ever changing mood. (people get ready people get ready people get ready people get ready) -- http://mail.python.org/mailman/listinfo/python-list
Re: [pylint] why pylint wants only capitals identifiers?
Giacomo Boffi giacomo.bo...@polimi.it writes: However, given you example, you should not insert code execution at you module level, unless it's required only at the module import. I dont know what is your module module? this was not well specified in my OP, but i'd rather speak of a script instead of a module... maybe should i use the if __name__ == __main__: main() idiom to keep happy my pylint? oh, let's do it... it should be easy isn't it? well, it's not so easy... pylint complains (correctly) about too many local variables in main(), and about other things for different adjustments i tried i think i will put some variable at top level, CAPITALIZED, with the intention of making evident that those values are the data of the problem, as well as other quantities that are computed once from base data, and then use these capitalized global variables inside my main function --- tonight, at home thank you again, g -- l'amore e' un sentimento a senso unico. a volte una via comincia dove finisce un'altra e viceversa -- Caldana, in IFQ -- http://mail.python.org/mailman/listinfo/python-list
Re: Generating a rainbow?
Tobiah t...@rcsreg.com writes: I'm having a difficult time with this. I want to display a continuous range of hues using HTML hex representation (#RRGGBB). How would I go about scanning through the hues in order to make a rainbow? if you mean real rainbows when you say rainbow, as rainbows go from low to high wavelengths and you have to specify colors to your display in RGB, i think that you have to read, e.g., http://www.physics.sfasu.edu/astro/color.html otoh if you mean simply a continuos palette with varying hues, excellent answers were already posted hth g -- compro mobili vecchi - vendo mobili antichi -- http://mail.python.org/mailman/listinfo/python-list
Re: python as pen and paper substitute
Manuel Graune manuel.gra...@koeln.de writes: Giacomo Boffi giacomo.bo...@polimi.it writes: Manuel Graune manuel.gra...@koeln.de writes: Hello everyone, I am looking for ways to use a python file as a substitute for simple pen and paper calculations. search(embedded calc mode) if manuel in emacs_fellows_set or sys.exit(1) Well, the subject does say python and so i answered in python... seriously, embedded calc mode is not mathematica's notebooks but is usable for doing live maths in a text buffer I'm a vim-user anyways. sorry... otoh, vim is scriptable in python. i know less than nothing on this subject but i'd be surprised if something akin to your request were not available *duckandrun* tanto ti ripiglio g -- non ho capito un apascio -- pp, tra se e se -- http://mail.python.org/mailman/listinfo/python-list
Re: Recommend Commercial graphing library
Grant Edwards inva...@invalid.invalid writes: If it's 2D data, you don't need to use a 3D graph. if it's tabular data, you don't need an uber-histogram -- giampippetto, coso, come si chiama? ah si` MMAX ha scritto: Tra il trascendente e l'interpretazione prevalente del dato come assioma ne passa... -- http://mail.python.org/mailman/listinfo/python-list
Re: python as pen and paper substitute
Manuel Graune manuel.gra...@koeln.de writes: Hello everyone, I am looking for ways to use a python file as a substitute for simple pen and paper calculations. search(embedded calc mode) if manuel in emacs_fellows_set or sys.exit(1) -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a pure Python chart drawing module
Piet van Oostrum p...@cs.uu.nl writes: Chris Withers ch...@simplistix.co.uk (CW) wrote: CW John Nagle wrote: That's a wrapper for Antigrain (http://www.antigrain.com/;), which is a C++ library. I'm trying hard to avoid dependencies on binary libraries with limited support. Builds exist only for Python 2.4 and 2.5. CW Huh? CW Matplotlib is a pretty phenomenal charting library, I use it CW routinely on both windows and linux, I've never had any CW compilation problems on Linux and never even needed to compile CW it on Windows. CW Writing if off as just a wrapper for antigrain is pretty CW insulting... *You* made up the just in that quote. The point was that the OP wants something that only needs Python. matplotlib can be used to generate .ps, .pdf and .svg files (all vectorial formats) without resorting to Antigrain Antigrain is used only in rasterizing, due to its better capabilities in the field of antialiasing, when you use matplotlib with an interactive backend; of course, if you're truly dispising Antigrain and are happy with a coarser display you can select interactive backends that DO NOT use Antigrain that's for the Antigrain wrapper otoh, if the OP intended a plotting library that does not use binary modules at all (then his reference to Antigrain was mostly fogging), then matplotlib is not for him % find matplotlib-0.99.0/| grep -v agg24 | grep '\.cpp$' | wc -l 23 % find matplotlib-0.99.0/| grep -v agg24 | grep '\.c$' | wc -l 5 % -- I wish we'd come to our senses and see there is no truth In those who promote the confusion for this ever changing mood. (people get ready people get ready people get ready people get ready) -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a pure Python chart drawing module
Vlastimil Brom vlastimil.b...@gmail.com writes: As for BLT, there is Pmw.Blt, the original is written in Tcl. doesn't work (dumps core) on debian linux bug #525860: python-pmw triggers segmentation fault in blt not that blt itself is really OK bug #524149: blt: zooming in a graph produces segmentation fault -- Io ti saluto diventa equivalente ad io saluto te -- gobbacci, in ISC -- http://mail.python.org/mailman/listinfo/python-list
Re: Looking for a pure Python chart drawing module
John Nagle na...@animats.com writes: gerlos wrote: John Nagle ha scritto: I'm looking for something that can draw simple bar and pie charts in Python. I'm trying to find a Python package, not a wrapper for some C library, as this has to run on both Windows and Linux and version clashes are a problem. Did you look at matplotlib? In their examples page there are some charts like the ones you asked for. I guess it could work for you, and it seems to work flawlessy in MS Windows as in gnu/linux. That's a wrapper for Antigrain (http://www.antigrain.com/;), which is a C++ library. come on, you can configure matplotlib to use one of too many different backends from http://matplotlib.sourceforge.net/users/customizing.html CONFIGURATION BEGINS HERE # the default backend; one of GTK GTKAgg GTKCairo CocoaAgg FltkAgg # MacOSX QtAgg Qt4Agg TkAgg WX WXAgg Agg Cairo GDK PS PDF SVG Template # You can also deploy your own backend outside of matplotlib by # referring to the module name (which must be in the PYTHONPATH) as # 'module://my_backend' backend : GTKAgg -- Yes you who must leave everything that you cannot control. It begins with your family, but soon it comes around to your soul. Well I've been where you're hanging, I think I can see how you're pinned: When you're not feeling holy, your loneliness says that you've sinned. -- http://mail.python.org/mailman/listinfo/python-list
Re: Help with cumulative sum
Maggie la.f...@gmail.com writes: [...] else: print 'The loop is finito' do you know of it.comp.lang.python? -- Sarebbe essere un atto di pieta'. Contro i miei principi.-- whip, in IFMdI -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tkinter] messed callbacks
Scott David Daniels scott.dani...@acm.org writes: Giacomo Boffi wrote: Giacomo Boffi giacomo.bo...@polimi.it writes: ... | def create_cb(a,b): | return lambda: output(a+'-'+b) | | def doit(fr,lst): | for c1,c2 in zip(lst[::2], lst[1::2]): | subframe=Frame(fr) | Label(subframe,text=c1+' - '+c2).pack(side='left',expand=1,fill='both') | Button(subframe,text='',command=create_cb(c1,c2)).pack() | Button(subframe,text='',command=create_cb(c2,c1)).pack() | subframe.pack(fill='x',expand=1) ... works ok, now i have to fully understand my previous error This is really why functools.partial exists. i take due note, tx Also note from Pep 8, spaces are cheap and make the code easier to read. space-crunch was just for posting on usenet, 80 cols terminals etc. grazie, g -- Sarò un'ingenua ma continuo a pensarla come prima, anche se probabilmente i fatti mi smentiscono. -- Francy, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tkinter] messed callbacks
John Posner jjpos...@optimum.net writes: def output(x,y,op): if op == : print x, ---, y elif op == : print x, ---, y else: print Operation argument error! uh, nice!, i'll adapt this to my real problem thank you John, g -- anch'io la penso come me, ma -- SteO153, in IHC -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tkinter] messed callbacks
Terry Reedy tjre...@udel.edu writes: Reedy's Lambda Rule: [detailed explanation omitted] i'm beginning to _understand_ what's going on with my code Terry Jan Reedy thanks, grazie 1000 Terry, g -- Lord, what fools these mortals be! -- http://mail.python.org/mailman/listinfo/python-list
[Tkinter] messed callbacks
i have this test program (that i already posted on it.comp.lang.python) [ test.py ] from Tkinter import * def output(s): print s def doit(fr,lst): for c1,c2 in zip(lst[::2], lst[1::2]): subframe=Frame(fr) Label(subframe,text=c1+' - '+c2).pack(side='left',expand=1,fill='both') Button(subframe,text='',command=lambda: output(c1+'-'+c2)).pack() Button(subframe,text='',command=lambda: output(c2+'-'+c1)).pack() subframe.pack(fill='x',expand=1) root=Tk() fr=Frame(root,relief='raised',borderwidth=5).pack(fill='both',expand=1) doit(fr,['pippo','pluto','paperino','zio_paperone']) Button(root,text='Q',command=root.destroy).pack(expand=1,fill='x') root.mainloop() when i execute it from the command line, click on the 4 buttons from top to bottom and quit (you can do the same), this is what i get aiuole: python test.py gray-black black-gray gray-black black-gray aiuole: as you see, the button 0 and 1 have callbacks different from my expectations, as my script was intended to give cyan-blue blue-cyan gray-black black-gray why the messed callbacks? what's the right thing to do? tia, g -- l'amore e' un sentimento a senso unico. a volte una via comincia dove finisce un'altra e viceversa -- Caldana, in IFQ -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tkinter] messed callbacks
Diez B. Roggisch de...@nospam.web.de writes: Giacomo Boffi wrote: def doit(fr,lst): for c1,c2 in zip(lst[::2], lst[1::2]): subframe=Frame(fr) Label(subframe,text=c1+' - '+c2).pack(side='left',expand=1,fill='both') Button(subframe,text='',command=lambda: output(c1+'-'+c2)).pack() Button(subframe,text='',command=lambda: output(c2+'-'+c1)).pack() subframe.pack(fill='x',expand=1) why the messed callbacks? what's the right thing to do? Closures in python contain names, not the objects they refer to. So when you rebind that name (as you do above in your loop), sorry, i'm not conscient of rebinding a name... what do you mean by rebind that name exactly? the created callbacks will only refer to the last bound value of a name. Create new closures, or bind arguments as defaults: funcs = [] def create_func(i): return lambda: i for i in xrange(10): funcs.append(lambda i=i: i) funcs.append(create_func(i)) for f in funcs: print f() i tried to understand, and maybe i have understood a thing or two... funcs = [] def create_func(i): return lambda: i for i in xrange(10): funcs.append(lambda i=i: i) funcs.append(create_func(i)) funcs.append(lambda: i)# this is my addition for f in funcs: print f() ok, i'll try again following your advice thank you very much g -- It will be rain tonight. Let it come down. -- http://mail.python.org/mailman/listinfo/python-list
Re: [Tkinter] messed callbacks
Giacomo Boffi giacomo.bo...@polimi.it writes: ok, i'll try again following your advice ,[ test.py ] | from Tkinter import * | | def output(s): | print s | | def create_cb(a,b): | return lambda: output(a+'-'+b) | | def doit(fr,lst): | for c1,c2 in zip(lst[::2], lst[1::2]): | subframe=Frame(fr) | Label(subframe,text=c1+' - '+c2).pack(side='left',expand=1,fill='both') | Button(subframe,text='',command=create_cb(c1,c2)).pack() | Button(subframe,text='',command=create_cb(c2,c1)).pack() | subframe.pack(fill='x',expand=1) | | root=Tk() | doit(root,['cyan','blue','gray','black']) | Button(root,text='Q',command=root.destroy).pack(expand=1,fill='x') | root.mainloop() ` works ok, now i have to fully understand my previous error again, thanks you very much g -- Yes you who must leave everything that you cannot control. It begins with your family, but soon it comes around to your soul. -- http://mail.python.org/mailman/listinfo/python-list
tkinter+matplotlib
i have coded some progs that use the Pmw.Blt.Graph widgets, embedded in a simple Tkinter GUI , | from Tkinter import * | import Pmw | ... | frame=Frame(root) | ... | graph=Pmw.Blt.Graph(frame,...) | graph.line_create(...) | graph.pack(...) ` now i'd like to port those progs to an environment where i have no BLT assuming that i can use matplotlib to draw the line graphs i need, how do i place the graph widget inside my tkinter GUI? tia, gb -- If you grow tired of the friends you make Never ever turn the back on them Say they were the best of time you ever had The best of times with the thougthless kind-- John Cale -- http://mail.python.org/mailman/listinfo/python-list
Re: [Pmw] reusing a graph after deleting a curve
giacomo boffi [EMAIL PROTECTED] writes: my question: is it possible to erase a graph, and reuse it? like in # x - compute - y g=Pmw.Blt.Graph(); g.pack() g.line_create(name,x,y) # other computing - a better y # do something to g, erasing the previous plot #[the above is the part that i cannot understand...] g.line_create(name,x,y) ok, i've got it: g.element_configure(name,ydata=a_better_y) if a Pmw.Blt hacker is listening, i cannot understand why on earth it's named element_configure, and not line_configure (yes, lines and bars are both elements, but...) -- vabbuò parliamo d'altro-- Agnosco, in IFQ -- http://mail.python.org/mailman/listinfo/python-list
[Pmw] reusing a graph after deleting a curve
my question: is it possible to erase a graph, and reuse it? like in # x - compute - y g=Pmw.Blt.Graph(); g.pack() g.line_create(name,x,y) # other computing - a better y # do something to g, erasing the previous plot #[the above is the part that i cannot understand...] g.line_create(name,x,y) -- Lovercraft, bestia.-- Whip,in IFQ -- http://mail.python.org/mailman/listinfo/python-list
