Re: Komodo, Python
"Isaac@AU" writes: > I just started learning python. I have komodo2.5 in my computer. And I > installed python2.7. I tried to write python scripts in komodo. But every > time I run the code, there's always the error: > > Traceback (most recent call last): > File "C:\Program Files\ActiveState Komodo 2.5\callkomodo\kdb.py", line 920, > in > > requestor, connection_port, cookie = ConnectToListener(localhost_addr, > port) > > File "C:\Program Files\ActiveState Komodo 2.5\callkomodo\kdb.py", line 872, > in > ConnectToListener > cookie = makeCookie() > File "C:\Program Files\ActiveState Komodo 2.5\callkomodo\kdb.py", line 146, > in > makeCookie > generator=whrandom.whrandom() > NameError: global name 'whrandom' is not defined This is a bug in "kdb.py". I forgets to import "whrandom". In addition it shows that the "kdb.py" code is very old. "whrandom" is been replaced by "random" a long time ago. -- Dieter -- http://mail.python.org/mailman/listinfo/python-list
Re: Threads vs subprocesses
On Fri, 15 Jun 2012 16:34:57 -0400 Dennis Lee Bieber wrote: > On Sat, 16 Jun 2012 03:24:13 +1000, John O'Hagan > declaimed the following in > gmane.comp.python.general: > > > > I should have made it clear that I'm not using threads to speed anything up; > > each thread produces an independently controlled, timed stream of musical > > events. I think it would be hard to achieve that in a single process. The > > streams need to run simultaneously without getting out of sync or dropping > > notes, which begins to happen if there are a lot of them, or they are run > > very fast or are very calculation-intensive to produce. > > > Sounds like something in the realm of discrete event simulation... > which is commonly single-threaded -- a list of events & time-points > which dispatch to event handlers as time is incremented... > > Or for your case: a time-ordered list of stream&event; issue all > events at a given time point, then dispatch to each stream to compute > the next event&time for that stream, which is placed into the ordered > list. Read the first pending event, sleep until the event time is > reached, then repeat the process. That looks like a possible way to do all the streams in a single thread, although it works a little differently from your outline above if I understand you correctly, in that only the events know their start times and they are produced by iterators which can be modified on the fly and which can be added and removed from the overall process at any time, so it's not possible to know in advance which iterator will produce the chronologically next event. I think that means that any ordered list of events would have to be re-ordered after each event is read. It might be worth a try though. I notice there is simpy for discrete event simulation in python. I'll look into it, thanks. John -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
Well, maybe something like: G. Van Rossum. The Python Language Reference Manual. Network Theory Ltd., September 2003. In other languages I use, the proper citation is obtained from the interpreter itself, and it points you to the language reference. Hope this helps. El Sat, 16 Jun 2012 14:18:48 +1000 Alec Taylor escribió: > I think it's more like when you see articles with a passage like: > > > The C programming language[1] or the C++ programming language[2] are > both > > examples of... > > > > > Are both easy to find the proper reference for. > > On Sat, Jun 16, 2012 at 2:13 PM, Ben Finney > wrote: > > > Mark Livingstone writes: > > > > > I wish to properly cite Python in an academic paper I am writing. > > > > > > Is there a preferred document etc to cite? > > > > I think you're best positioned to answer that. Python isn't a > > document, so what specifically are you citing it as? > > > > -- > > \ “A ‘No’ uttered from deepest conviction is better and > > greater | `\ than a ‘Yes’ merely uttered to please, or what > > is worse, to | _o__) avoid trouble.” > > —Mohandas K. Gandhi | Ben Finney > > -- > > http://mail.python.org/mailman/listinfo/python-list > > -- http://mail.python.org/mailman/listinfo/python-list
Re: Create thumbnail image (jpg/png) of PDF file using Python
On Fri, Jun 15, 2012 at 9:15 AM, Dennis Lee Bieber wrote: > PDF is not an "image" file format; it is a "program" describing how > to render each page. Some of the page contents can be image bitmap data, > but a "proper" PDF has text AS text. Plus, JPG is very poor at handling text. It's designed for photos and photo-like images. I would recommend using PNG for the bitmapped side. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: is the same betweent python3 and python3.2?
On 6/15/2012 11:31 PM, contro opinion wrote: > is the /usr/lib/python-3.2.3/bin/python3 same as > /usr/lib/python-3.2.3/bin/python3.2? It should be. IIRC, ls -l will tell you if something is a link. You could also run python3 and it will tell you the version. -- CPython 3.3.0a4 | Windows NT 6.1.7601.17803 -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
On 16/06/2012 04:24, Mark Livingstone wrote: Hello! I wish to properly cite Python in an academic paper I am writing. Is there a preferred document etc to cite? Thanks in advance, MArkL The main website www.python.org and possibly the sites for Jython, IronPython and PyPY? -- Cheers. Mark Lawrence. -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
That's a rather vague question. What do you want to cite about python? If you're just mentioning python, that shouldn't warrant a citation, though a parenthetical note linking to python.org might be useful. The standard documentation should be acceptable, or possibly a link to the source code at a given revision. Cheers, Cliff On Sat, 2012-06-16 at 13:24 +1000, Mark Livingstone wrote: > Hello! > > I wish to properly cite Python in an academic paper I am writing. > > Is there a preferred document etc to cite? > > Thanks in advance, > > MArkL -- http://mail.python.org/mailman/listinfo/python-list
Re: Pythonic cross-platform GUI desingers à la Interface Builder (Re: what gui designer is everyone using)
On Thu, 14 Jun 2012 12:59:23 -0700 (PDT) CM wrote: > On Jun 14, 2:25Â pm, Wolfgang Keller wrote: > > > > What is needed for domain specialists are frameworks and related > > tools such as GUI builders that allow them to write exclusively the > > domain-specific code (this is where a domain specialist will always > > be better than any software developer), layout the GUI as > > ergonomically convenient (same) and then have the framework do all > > the rest. > > Above this you also mentioned a disdain for the need for "glue code", > which in the context of your post seemed to be binding to event > handlers. With "glue code" I mean any code other than that which serves to implement purely domain-specific behaviour. > So is there a possible way for a GUI builder to *automatically* bind > widgets to the appropriate functions in your domain-specific code? > It's hard to see how this would be generally possible, even with an > AI (maybe a mind-reading AI would work). > > Or maybe I'm misunderstanding something. Probably, since there are GUI builders/frameworks available that do what I described. I have already pointed to some for my specific type of application (database applications) that don't even need any GUI definition at all, since the GUI is entirely reflected from the domain model. Which I would not consider as the most ergonomic way to define a GUI. Unfortunately these excellent GUI builders and frameworks all use languages which imho are not at all suitable for domain specialists who are not full-time software developers by training. Sincerely, Wolfgang -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
On Sat, 16 Jun 2012 14:01:12 +0100, Mark Lawrence wrote: >On 16/06/2012 04:24, Mark Livingstone wrote: >> Hello! >> >> I wish to properly cite Python in an academic paper I am writing. >> >> Is there a preferred document etc to cite? >> >> Thanks in advance, >> >> MArkL > >The main website www.python.org and possibly the sites for Jython, >IronPython and PyPY? He's probably looking for an IEC or ANSI standard, like "Information technology Programming languages C INCITS/ISO/IEC 9899-2011[2012] (ISO/IEC 9899-2011, IDT)". I don't think URLs qualify as standards documents. -- Rich Webb Norfolk, VA -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
Or copy a citation from Guido: http://www.python.org/~guido/Publications.html Emile -- http://mail.python.org/mailman/listinfo/python-list
python 3.3 bz2 decompression testing results
I tested http://python.org/ftp/python/3.3.0/python-3.3.0a4.amd64.msi
bz2 module's decompression using the bz2 -files from:
https://www.ee.oulu.fi/research/ouspg/PROTOS_Test-Suite_c10-archive
and found nothing.
I did not use anything like Valgrind though.
Should I try to run these tests again using Linux and Valgrind?
Testscript is at:
http://code.google.com/p/my-never-ending-projects/source/browse/trunk/tests/python3_3_bz2/test_decompress.py
you might find it interesting.. or not.
The test took about 2 hours and all the exceptions I got from tests
were the like these two (exceptions.txt -file which was made by the
test_decompress.py -testscript):
testcase 0: 0184e108021bf3b3f860f1c7618c.bz2
file len: 76
local testtime: 2012-06-16 18:44:25
('Traceback (most recent call last):\n',
' File "C:/projektit/bz2_python33_test/test_decompress.py", line 52,
in \n_ = bz2.decompress(fs)\n',
' File "C:\\Python33-0a4\\lib\\bz2.py", line 419, in decompress\n
raise ValueError("Compressed data ended before the "\n',
'ValueError: Compressed data ended before the end-of-stream marker
was reached\n')
testcase 1: 01d8c11b84d738de284a8ba76226.bz2
file len: 3629
local testtime: 2012-06-16 18:44:25
('Traceback (most recent call last):\n',
' File "C:/projektit/bz2_python33_test/test_decompress.py", line 52,
in \n_ = bz2.decompress(fs)\n',
' File "C:\\Python33-0a4\\lib\\bz2.py", line 417, in decompress\n
results.append(decomp.decompress(data))\n',
'OSError: Invalid data stream\n')
--
http://mail.python.org/mailman/listinfo/python-list
Python 3.3.0a4, please add ru'...'
Please consistency. >>> sys.version '3.3.0a4 (v3.3.0a4:7c51388a3aa7+, May 31 2012, 20:15:21) [MSC v.1600 32 bit (Intel)]' >>> 'a' 'a' >>> b'a' b'a' >>> br'a' b'a' >>> rb'a' b'a' >>> u'a' 'a' >>> ur'a' 'a' >>> ru'a' SyntaxError: invalid syntax >>> jmf -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
Olmo Hernández Cuba writes: > Well, maybe something like: > > G. Van Rossum. The Python Language > Reference Manual. Network Theory Ltd., September 2003. Are you referencing material from that document? If so, go ahead and reference that document's URL. > In other languages I use, the proper citation is obtained from the > interpreter itself, and it points you to the language reference. But why cite the language reference, or any document, if you're not actually referencing material in that document? I don't see how merely writing programs in a language warrants bibliographic citation for it. Perhaps just referring to the main URL for the Python website? -- \ “What you have become is the price you paid to get what you | `\ used to want.” —Mignon McLaughlin | _o__) | Ben Finney -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
On 6/15/2012 11:24 PM, Mark Livingstone wrote: Hello! I wish to properly cite Python in an academic paper I am writing. Is there a preferred document etc to cite? At present, I would use something like Rossum, Guido van, et al, *The Python Language Reference*, Python Software Foundation; http://docs.python.org/py3k/reference/index.html with punctuation adjusted to your target. That url should continue to work as new versions are released. If you want to cite a particular version, http://docs.python.org/release/3.2/reference/index.html with 3.2 replaced by x.y as appropriate. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
Am 16.06.2012 22:44, schrieb Terry Reedy: > Rossum, Guido van, et al, *The Python Language Reference*, Python > Software Foundation; http://docs.python.org/py3k/reference/index.html Actually it's "van Rossum, Guido", not "Rossum, Guido van". The "van" is part of the family name, not a middle name. It's like "da Vinci, Leonardo" or "von Sydow, Max". On one occasion Guido complained that Americans always get his name wrong. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Academic citation of Python
On 6/16/2012 5:01 PM, Christian Heimes wrote: Am 16.06.2012 22:44, schrieb Terry Reedy: Rossum, Guido van, et al, *The Python Language Reference*, Python Software Foundation; http://docs.python.org/py3k/reference/index.html Actually it's "van Rossum, Guido", not "Rossum, Guido van". The "van" is part of the family name, not a middle name. It's like "da Vinci, Leonardo" or "von Sydow, Max". On one occasion Guido complained that Americans always get his name wrong. Thank you for the correction. I was going by an old book (1996) he co-wrote that just had 'Rossum' on the spine. I guess that must have been done without consulting him and must have annoyed him. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: is the same betweent python3 and python3.2?
root@debian:/home/debian# find / -name 'python3' /usr/lib/python-3.2.3/bin/python3 root@debian:/home/debian# /usr/lib/python-3.2.3/bin/python3 Python 3.2.3 (default, Jun 16 2012, 10:59:54) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> it is the same thing,think you 2012/6/16 Andrew Berg > On 6/15/2012 11:31 PM, contro opinion wrote: > > is the /usr/lib/python-3.2.3/bin/python3 same as > > /usr/lib/python-3.2.3/bin/python3.2? > It should be. IIRC, ls -l will tell you if something is a link. You > could also run python3 and it will tell you the version. > > -- > CPython 3.3.0a4 | Windows NT 6.1.7601.17803 > -- > http://mail.python.org/mailman/listinfo/python-list > -- http://mail.python.org/mailman/listinfo/python-list
Smart quote character replacement for those with deficient sed-fu.
Use case: === 1. OSX 10.7, bunch of .tex files culled from a blog via some cruddy old Perl script. .tex files are utf-8 encoded, which means the quotes and apostrophes drop out going through pdflatex. 2. Recommend using git to manage the .tex files, which are all in a /src directory in the project. If you're going to do batch edits, You Will Need to branch, realize you gooned up, and roll back. 3. Understood, sed is the more classical tool here, except that I could not it to work in my OSX terminal. Invocation: === python charfix.py `ls src/*.tex` charfix.py code: === # -*- coding: utf-8 -*- import fileinput def process(line): print line.replace( "’", "'" ).replace( "“", '"' ).replace( "”", '"' ) if __name__=="__main__": for line in fileinput.input( inplace=1 ): process(line) === Discussion: === Thank you, python! -- http://mail.python.org/mailman/listinfo/python-list
Is that safe to use ramdom.random() for key to encrypt?
I'm making cipher program with random.seed(), random.random() as the key table of encryption. I'm not good at security things and don't know much about the algorithm used by random module. Is it really random or safe enough to keep my data safe? -- http://mail.python.org/mailman/listinfo/python-list
Re: Is that safe to use ramdom.random() for key to encrypt?
On Sun, Jun 17, 2012 at 12:15 PM, Yesterday Paid wrote: > I'm making cipher program with random.seed(), random.random() as the > key table of encryption. > I'm not good at security things and don't know much about the > algorithm used by random module. For security, you don't want any algorithm, you want something like /dev/random (on Unix-like platforms). I'm pretty sure Python includes crypto facilities. Unless it (most oddly) lacks these batteries, I would recommend using one of them instead. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Pythonic cross-platform GUI desingers ?? la Interface Builder (Re: what gui designer is everyone using)
On Fri, Jun 15, 2012 at 7:47 AM, Dietmar Schwertberger wrote: > The point is, that if you want to promote Python as replacement > for e.g. VB, Labview etc., then an easy-to-use GUI builder is required. > The typical GUI programs will just have an input mask, a button and one > or two output fields. I want to promote Linux as a replacement for Windows. But I do not see that Linux needs to be able to run Internet Explorer in order to do that. Maybe when people move to a replacement, they need to learn a slightly different way of doing things; and in this case, I would strongly recommend the "build your UI in code" method. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Is that safe to use ramdom.random() for key to encrypt?
Yesterday Paid writes: > I'm making cipher program with random.seed(), random.random() as the > key table of encryption... > Is it really random or safe enough to keep my data safe? No. Use os.urandom instead. -- http://mail.python.org/mailman/listinfo/python-list
Re: Is that safe to use ramdom.random() for key to encrypt?
On Sun, 17 Jun 2012 12:31:04 +1000, Chris Angelico wrote: > On Sun, Jun 17, 2012 at 12:15 PM, Yesterday Paid > wrote: >> I'm making cipher program with random.seed(), random.random() as the >> key table of encryption. >> I'm not good at security things and don't know much about the algorithm >> used by random module. > > For security, you don't want any algorithm, you want something like > /dev/random (on Unix-like platforms). > > I'm pretty sure Python includes crypto facilities. Unless it (most > oddly) lacks these batteries, I would recommend using one of them > instead. > > ChrisA Cryptography is a complex subject - I've had the (mis)fortune to study it briefly. Whatever you do - *do not* attempt to write your own algorithm. Python includes hashlib (forms of SHA and MD5) and uuid modules, but I take it a symmetric or possibly public/private key system is required - depending on what you want to secure, where it's stored and who needs access. I generally find a separate partition with an encrypted file-system (which is fairly straight forward on *nix systems or I think there's a product out there that works with Windows), is a lot easier and puts the load on the filesystem/OS instead of having to be handled in your application is a lot simpler. Jon -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 3.3.0a4, please add ru'...'
On Sat, 16 Jun 2012 10:36:42 -0700, jmfauth wrote: > Please consistency. There is no point asking here. Feature requests and bug reports must go on the tracker, or they are unlikely to be noticed or remembered by anyone who can fix it. http://bugs.python.org/ Given that 3.3's feature-freeze is only days away, I strongly recommend that you also raise it here: http://mail.python.org/mailman/listinfo/python-dev -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Is that safe to use ramdom.random() for key to encrypt?
On Sat, 16 Jun 2012 19:15:34 -0700, Yesterday Paid wrote: > I'm making cipher program with random.seed(), random.random() as the key > table of encryption. > I'm not good at security things and don't know much about the algorithm > used by random module. Start by reading the Fine Manual: http://docs.python.org/library/random.html which answers your question: "it is not suitable for all purposes, and is completely unsuitable for cryptographic purposes." Please don't write yet another broken cipher program that doesn't work. Use a proper one that has been mathematically analysed by professionals. I don't mean to cast aspersions on you, but any fool can write a cipher program that *they* can't break themselves. It takes many years of study to design a cipher that professionals can't break. At the very least, start with PyCrypto. http://pypi.python.org/pypi/pycrypto If all you want is to play around obfuscating data, you might be interested in my toy encryption module: http://pypi.python.org/pypi/obfuscate/ (which is also completely unsuitable for cryptographic purposes, but may be useful if you have some interest in the history of cryptography). > Is it really random or safe enough to keep my data safe? Safe from what? What is your threat model? Are you worried about your little sister reading your diary? Or the NSA discovering your plans to assassinate the President? Or something in between? Python's random module is not cryptographically strong, which means that it will probably take an organisation like the NSA, MI5, ASIO, Mossad, etc. about 10 or 20 minutes to crack your password. But your little sister will probably take a hundred million years to guess it. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Smart quote character replacement for those with deficient sed-fu.
On Sat, 16 Jun 2012 18:39:42 -0700, smitty1e wrote: [...] > python charfix.py `ls src/*.tex` > > charfix.py code: Thanks for that. You might like to also publish it on the ActiveState Python recipes site, where people are more likely to find it in the future. http://code.activestate.com/recipes/langs/python/ -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: Is that safe to use ramdom.random() for key to encrypt?
On Sun, Jun 17, 2012 at 2:18 PM, Steven D'Aprano wrote: > Safe from what? What is your threat model? Are you worried about your > little sister reading your diary? Or the NSA discovering your plans to > assassinate the President? Or something in between? > > Python's random module is not cryptographically strong, which means that > it will probably take an organisation like the NSA, MI5, ASIO, Mossad, > etc. about 10 or 20 minutes to crack your password. But your little > sister will probably take a hundred million years to guess it. Your little sister would quite possibly be kept off by rot13, which everyone knows isn't cryptographically secure. All it takes is making something look encrypted and most people won't bother to try (plus it's the whole "this isn't public kthx" thing, which many people will respect). Of course, if you're just trying to fool the BOFH's technical manager, it's even easier. http://bofh.ch/newbofh/bofh4oct.html ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Komodo, Python
On Sat, Jun 16, 2012 at 3:20 AM, Dieter Maurer wrote: > In addition it shows that the "kdb.py" code is very old. "whrandom" > is been replaced by "random" a long time ago. Komodo 2.5 was released in 2003. At the time, Python was on release 2.3. Komodo is currently on version 7. The OP should consider updating their IDE. -- http://mail.python.org/mailman/listinfo/python-list
