Re: checking if a list is empty

On Wed, 11 May 2011 20:16:01 -0700 (PDT), alex23 wrote: : Hans Georg Schaathun wrote: : > Revolutionary indeed, so why don't we exploit the revolution : > and write the programs to be as accessible as possible? : : Where do you draw the line, though? I said that, "as poss

Re: checking if a list is empty

On Thu, 12 May 2011 17:44:07 +1200, Gregory Ewing wrote: : Roy Smith wrote: : > Hans Georg Schaathun wrote: : >>If both are numbers, they are converted to a common type. Otherwise, : >>objects of different types always compare unequal Actually, I did not. :-- hg -- http://

Re: checking if a list is empty

without programming skills, polyglot programmers etc. Only very narrow-purpose applications can be created by one of these groups on their own, and to collaborate their abilities must be overlapping. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: checking if a list is empty

eader when you go down that route. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: checking if a list is empty

typewriters and entertainment theatres does in no way reduce the need of those who actually need /computers/. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: checking if a list is empty

On Thu, 12 May 2011 16:46:38 +1000, Ben Finney wrote: : Hans Georg Schaathun writes: : : > On Wed, 11 May 2011 20:31:45 -0700 (PDT), alex23 : >wrote: : > : On May 12, 7:24 am, harrismh777 wrote: : > : > We need to move away from 'canned apps' to a new day whe

Re: checking if a list is empty

eeded. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: checking if a list is empty

ing the top floor, and still much less than the concrete engineer. And the main difference here, is that the civil engineers have a much better language to share information. The best programmers have is the programmming language, and we ought to make that as good as possible. -- :-- Hans Georg

Re: obviscating python code for distribution

attack, it also reduces risk, and thereby provides some level of security. Obviously, if your threat sources are dedicated hackers or maybe MI5, there is no point bothering with obfuscation, but if your threat source is script kiddies, then it might be quite effective. -- :-- Hans Georg -- http://

Re: English Idiom in Unix: Directory Recursively

w Mac OS X has maintained the folder concept of older mac generations, and Windows has cloned it. They do not want the user to understand recursive data structures, and therefore, naturally, avoid the word. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: English Idiom in Unix: Directory Recursively

times the node is visited. This node requires no stack. The only state space is constant, regardless of the size of the tree, requiring just the two pointers to previous and current. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: obviscating python code for distribution

On Wed, 18 May 2011 09:54:30 -0700, geremy condra wrote: : On Wed, May 18, 2011 at 12:36 AM, Hans Georg Schaathun wrote: : > But then, nothing is secure in any absolute sense. : : If you're talking security and not philosophy, there is such a thing : as a secure system. As a devel

Re: English Idiom in Unix: Directory Recursively

ent pointers of some description; but it does demonstrate that tree walks can be done iteratively, without keeping a stack of any sort. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: English Idiom in Unix: Directory Recursively

call stack, and not really a significant expense in context. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: obviscating python code for distribution

aybe it is right to say that the theory and skills do exist, but the money to gather it all in one project to demonstrate the security of a single system does not :-) -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: English Idiom in Unix: Directory Recursively

ar operation, possibly. For other tree : operations, a single parent pointer may not be sufficient. Que? What tree operations do you have in mind? We have covered all the standard textbook tree walks by now. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: English Idiom in Unix: Directory Recursively

ildren for each node, one way or another. The only thing I am assuming is that the children can be inspected in the same order every time the node is visited. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: obviscating python code for distribution

saying that, but whenever you try to back the claim, you keep referring to limited components and not systems at all. -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: obviscating python code for distribution

out what it takes to do it, before spend the resources barking up the wrong tree. For each successful attack, there probably is a number of failed ones. Thanks for the reference. BTW. That's not the only attack on MIFARE. I cannot remember the details of the other. -- :-- Hans Georg -

Re: obviscating python code for distribution

Obviously, if you were implying that no system passes the lower levels, then of course they won't pass the higher levels, but then, if that's the case, we would all know that we cannot even design /seemingly/ secure systems. And nobody has suggested that so far. ¹ e.g. Dieter Gollmann

Re: obviscating python code for distribution

methods do not help on that step. It takes more than a non-idiot to avoid misunderstandings on the interface betweeen professions. Either way, the assumption that your system will not be handled by idiots is only reasonable if you yourself is the only user. -- :-- Hans Georg -- http

Re: English Idiom in Unix: Directory Recursively

On Thu, 19 May 2011 23:21:30 +0200, Rikishi42 wrote: : On 2011-05-18, Hans Georg Schaathun wrote: : > Now Mac OS X has maintained the folder concept of older mac generations, : > and Windows has cloned it. They do not want the user to understand : > recursive data structures, and

Re: English Idiom in Unix: Directory Recursively

timates the : intelligence of lay people and over-estimates the difficulty of : understanding recursion. Could we then say that «recursion is a technical word that should not /unnecessarily/ be foisted onto lay users»? -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: obviscating python code for distribution

On 20 May 2011 07:04:27 GMT, Steven D'Aprano wrote: : On Fri, 20 May 2011 05:48:50 +0100, Hans Georg Schaathun wrote: : : > Either way, the assumption that your system will not be handled by : > idiots is only reasonable if you yourself is the only user. : : Nonsense. How do y

Re: how to pickle unpicklable objects

p): self.this = _umddevice.new_UMDMResult(tup[0],tup[1],tup[2],tup[3]) self.thisown=1 (self.Z0,self.Eta0,self.t)=[i for i in tup[4:]] %} } regards Hans Georg Krauthaeuser -- http://mail.python.org/mailman/listinfo/python-list

searching python/gui developper in germany

eburg, Germany). If someone is interested: contact me by email, please. Best regards Hans Georg Krauthaeuser -- http://mail.python.org/mailman/listinfo/python-list

Re: searching python/gui developper in germany

malv schrieb: > Hans Georg Krauthaeuser wrote: > >>Dear all, >> >>for the measurements in our labs we have developed python scripts that >>are pretty fine for our needs. Basically, we have classes and call the >>appropriate methods from the command line (or by

Re: Help with cPickle for deserializing datetime.datetime instances

Mingus Tsai schrieb: > Hello- please help with unpickling problem: > > I am using Python version 2.3.4 with IDLE version 1.0.3 on a Windows > XPhome system. > > My problem is with using cPickle to deserialize my pickled arrays of > datetime.datetime instances. The following is the code I have wr

Re: Good python reference?

the title of your mail I would answer http://rgruet.free.fr/PQR24/PQR2.4.html But history? Sorry Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

platform independent kbhit()

found this http://my.execpc.com/~geezer/software/kbhit.c C source that has a kbhit() and a getch() for linux/unix that I can SWIG to python. Are there other (more simple, pure python, true platform independent) possibilities? Best regards Hans Georg Krauthaeuser -- www.uni-magdeburg.de/krauthae --

Re: Text To Speech with pyTTS

ges\pyTTS\__init__.py", line 28, in Create raise ValueError('"%s" not supported' % api) ValueError: "SAPI" not supported ... The TTSFast.py file is missing in the 2.3 distribution. I made a copy from the 2.4 dist and everything worked fine for me. Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: Text To Speech with pyTTS

Peter wrote: I released a new version of the Windows installer for Python 2.3 that includes the missing _TTSFast.pyd file. Unfortunenately, the file TTSFast.py is missing, not _TTSFast.pyd. Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: Newbie Tkinter Question

ed manually). From Tkinter, passing a PhotoImage as a parameter actually only sends the str() of the image object to the Tcl side: this is just a string, the randomly-generated name assigned when the object was created. "No reference to the image itself" means "no reference counti

tiff/pbm in pyplot (ubuntu)

array and check that the colour channels are equal. I'll be grateful for any pointers, TIA -- :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

scipy.stats.itemfreq: overflow with add.reduce

...: 254 254 255 255 256 0 257 1 258 2 Is there any possibility to avoid the overflow? BTW: Python 2.3.5 (#2, Aug 30 2005, 15:50:26) [GCC 4.0.2 20050821 (prerelease) (Debian 4.0.1-6)] on linux2 scipy_version.scipy_version --> '0.3.2' Thanks and best regards Hans Georg Krauthäuser

Re: scipy.stats.itemfreq: overflow with add.reduce

Hans Georg Krauthaeuser schrieb: > Hi All, > > I was playing with scipy.stats.itemfreq when I observed the following > overflow: > > In [119]:for i in [254,255,256,257,258]: >.:l=[0]*i >.:print i, stats.itemfreq(l), l.count(0) >.: &

Re: scipy.stats.itemfreq: overflow with add.reduce

Hans Georg Krauthaeuser schrieb: > Hans Georg Krauthaeuser schrieb: > >> Hi All, >> >> I was playing with scipy.stats.itemfreq when I observed the following >> overflow: >> >> In [119]:for i in [254,255,256,257,258]: >>.:l=[0]*i >&

Re: [OT] no goto (WAS: Python code written in 1998...)

m the 80s. http://www.uni-weimar.de/~mildenbe/spass/vatical/vatical.html It's in German only and I'm not aware of a English translation. Please be aware that content of that page is not political correct and may offend your religious sensibilities. Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: Is it possible to save a running program and reload next time ?

[EMAIL PROTECTED] wrote: > > Can objects be saved and reloaded by "Pickle" ? I have tried but no > success. > Yes, that's the intended use of pickle/cPickle. There are examples in the docs: http://docs.python.org/lib/module-pickle.html What have you tried and wh

Re: Is it possible to save a running program and reload next time ?

[EMAIL PROTECTED] wrote: > Hans Georg Krauthaeuser wrote: >> [EMAIL PROTECTED] wrote: >> >>> Can objects be saved and reloaded by "Pickle" ? I have tried but no >>> success. >>> >>> >> Yes, that's the inten

Re: RPy / R

x27;os': 'linux-gnu', 'svn rev': '36812', 'system': 'i486, linux-gnu', 'month': '12', 'platform': 'i486-pc-linux-gnu', 'year': '2005', 'arch': 'i486', 'day': '20', 'minor': '2.1'} Seems to be a problem with your installation... Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: pickling multiple dictionaries

n [9]:del d2 In [10]:pfile=file('test.p','rb') In [11]:d1=pickle.load(pfile) In [12]:d1 Out[12]:{'a': 1} In [13]:d2=pickle.load(pfile) In [14]:d2 Out[14]:{'b': 2} If your data is *really* large, have a look to PyTables (http://www.pytables.org/moin). Regards, Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: Get actual call signature?

else: break finally: del frame del outerframes del caller del ccframe return cmd, sdict if __name__ == '__main__': c=CLS() c.fun(5) c.fun(5, arg_three=['a', 'b']) c.fun(5, 'something') c.fun(5, 'something') a=c.fun a(4) Best Regards Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: keyboard "interrupt"

d)=Carbon.Evt.GetNextEvent(0x0008) [1] # # The message (msg) contains the ASCII char which is # extracted with the 0x00FF charCodeMask; this # number is converted to an ASCII character with chr() and # returned # (what,msg,w

Re: Speaking Text

> > says 'hello'. > > Is there something similar in Windows and/or Linux? > (If it's there in Linux presumably it only works if there > happens to be a speech engine available...) > > David C. Ullrich In Windows -> pyTTS http://www.mindtrove.info/articles/p

Re: FIR filtering

LabWINC wrote: > Hi all, > i'm looking for a module to implement a digital FIR filter! > Can anyone help me? > > Thanks, > > Vincent > gnuradio? Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: FIR filtering

LabWINC wrote: > What's gnuradio? > http://www.gnu.org/software/gnuradio/ It's a c++ lib with a python wrapper. BTW, thats the first hit in google ... Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Re: FIR filtering

LabWINC wrote: > I can't understand how gnuradio can help me... > I find scipy is the only way to implement a good FIR. Well, then do it with scipy... gnuradio has a module for FIR. I never used it. I just wanted to share that information. Hans Georg -- http://mail.python.org/mailm

Re: How to determine if a line of python code is a continuation of the line above it

== '__main__': a=0 b="test" c=42 cmd=func(a) print cmd cmd=func(a, b, c) print cmd output: cmd=func(a) cmd=func(a, b, c) Regards Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

DCT transform (API)? (scipy or otherwise)

I am looking for a 2-D DCT transform function for use in python. Does anyone have any good pointers? I see that one is promised in scipy 0.8.0, but I cannot find any details on how close that is to being released. I am not sure if running bleeding-edge scipy would solve my problem; I should hav

Re: best vi / emacs python features

On Wed, 07 Oct 2009 18:44:03 +0200, Jean-Michel Pichavant wrote: : When opposing vi to emacs, there's is no possibility you get : constructive and objective answer, because basically, what can do with : one, you can also do it with the other. You seem rather negative. I could not see any

PIL Image.fromarray( ... , mode="1" )

wrong? What is the right/best way to save/convert two-tone images? I have not managed to find proper documentation for the Image.fromarray() method; the docstring seems to be empty )-: TIA :-- Hans Georg -- http://mail.python.org/mailman/listinfo/python-list

Plotting in batch with no display

Admittedly not the strongest reason, but yet an important one, for switching from Matlab to python/numpy/scipy/matplotlib, is that Matlab is very cumbersome to run in batch. Now I discover that some of the matplotlib.pyplot functions (incl. plot and contour) insist on opening an X11 window (just

Re: Plotting in batch with no display

On Fri, 04 Jun 2010 22:27:33 -, exar...@twistedmatrix.com wrote: : It's possible to plot with matplotlib without a display. I'm not : surprised you didn't figure out how, though, it's not all that obvious. Thank you very much. That's a good start. Do you know of any good documentatio

Re: Plotting in batch with no display

On Sat, 5 Jun 2010 16:10:01 + (UTC), Tim Harig wrote: : On 2010-06-05, Hans Georg Schaathun wrote: : > Raster graphics is not good enough, I will need a backend which : > does vector graphics and pdf output. AFAICS from the FAQ at : > sourceforge, agg only supports raster and pn

Colour TIFF support (PIL or otherwise)

Does anyone know how to handle TIFF images in Python? The pylab support uses PIL, and using either pylab or PIL directly, it messes up the colour scheme. It may look as if it loads CMY believing that it is RGB, but I am not absolutely sure. I have no problem handling Microsoft BMP colour images

Instatiable Pseudo-Random Number Generator

I wonder if someone knows of an API with the features I need... random.Random and numpy.random each have only half of it... My application includes an object to hold a pseudo-randomly generated matrix too large to be kept in memory. Hence I try to store only the seed, and generate the numbers on

Re: Instatiable Pseudo-Random Number Generator

On Thu, 10 Sep 2009 02:53:33 -0700 (PDT), sturlamolden wrote: : On 10 Sep, 10:50, Hans Georg Schaathun wrote: : : > Can anyone recommend a PRNG which supported multiple instances : > with independent states, and that also can return numpy.array (or : > something similar) ef

Wichtig für Maximus

https://www.heise.de/newsticker/meldung/WannaCry-Microsoft-liefert-Sicherheits-Patches-fuer-veraltete-Windows-Versionen-3713417.html -- https://mail.python.org/mailman/listinfo/python-list

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