ANN: MoinMoin 1.5.1 (advanced wiki engine) released
__ /\/\ ___ (_)_ __ /\/\ ___ (_)_ __ /\ / _ \| | '_ \ /\ / _ \| | '_ \ __ / /\/\ \ (_) | | | | / /\/\ \ (_) | | | | | /| |_ \/\/\___/|_|_| |_\/\/\___/|_|_| |_| |.__) == MoinMoin 1.5.1 advanced wiki engine released == MoinMoin is an easy to use, full-featured and extensible wiki software package written in Python. It can fulfill a wide range of roles, such as a personal notes organizer deployed on a laptop or home web server, a company knowledge base deployed on an intranet, or an Internet server open to individuals sharing the same interests, goals or projects. A wiki is a collaborative hypertext environment with an emphasis on easy manipulation of information. MoinMoin 1.5.1 is a bug fix release. It mainly addresses the issues that slipped through the 1.5 release cycle. The 1.5 branch brings you several new features such as the GUI editor, which allows the users to edit pages in a WYSIWYG environment, and many bug fixes. The download page: http://moinmoin.wikiwikiweb.de/MoinMoinDownload Major bug fixes in 1.5.1 * A race condition in the code, that conflicted with a broken copy.py in the std lib, was worked around in order to avoid DeepCopyErrors. * Unzipping was broken in 1.5.0. * Fixed the docutils version check. * Fixed a few Internet Explorer issues. Major new features in 1.5 = * The WYSIWYG editor for wiki pages allows you to edit pages without touching the markup. Furthermore, the wiki page is not stored as HTML after editing but kept as wiki markup in order to simplify the editing process for users that cannot or do not want to use the new editor. * AutoAdmin security policy allows users to gain admin permissions on particular pages. * The new authentication system allows to add short methods that check the credentials of the user. This allowed us to add eGroupware single sign on support. * Separation of homepages into a separate wiki (in a farm) and having a single user database is supported. * A DeSpam action to allow mass-reverting of spam attacks. * PackageInstaller support for simplified installation of plugins, themes and page bundles. This enables you to decide in which languages help pages should be installed. Note that Python 2.3.0 or newer is required. For a more detailed list of changes, see the CHANGES file in the distribution or http://moinmoin.wikiwikiweb.de/MoinMoinRelease1.5/CHANGES MoinMoin History MoinMoin has been around since year 2000. The codebase was initally started by Jürgen Hermann; it is currently being developed by a growing team. Being originally based on PikiPiki, it has evolved heavily since then (PikiPiki and MoinMoin 0.1 consisted of just one file!). Many large enterprises have been using MoinMoin as a key tool of their intranet, some even use it for their public web page. A large number of Open Source projects use MoinMoin for communication and documentation. Of course there are also many private installations. More Information * Project site: http://moinmoin.wikiwikiweb.de/ * Feature list: http://moinmoin.wikiwikiweb.de/MoinMoinFeatures * Download: http://moinmoin.wikiwikiweb.de/MoinMoinDownload * DesktopEdition: http://moinmoin.wikiwikiweb.de/DesktopEdition * This software is available under the GNU General Public License v2. * Changes: http://moinmoin.wikiwikiweb.de/MoinMoinRelease1.5/CHANGES * Known bugs: * http://moinmoin.wikiwikiweb.de/KnownIssues * http://moinmoin.wikiwikiweb.de/MoinMoinBugs sent by Alexander Schremmer for the MoinMoin team -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: New Python.org website?
Terry Hancock wrote: On 18 Jan 2006 18:05:18 -0800 Obaid R. [EMAIL PROTECTED] wrote: I hope it is not counted against me that I am the first one to point out that the logo is shaped like a cross. [...] Hey, looks more like a Yin-Yang symbol to me. ;-) True. But I hope you are not arguing that since it looks to you like a Yin-Yang that it makes it therefore not look like a cross. For even Steve did say that there is no point arguing against what appears like a matter of fact. And why ask with any trepidation, Steve? People of different backgrounds have dissimilar sensitivities. I hope you agree that it would be unfair to blame people for such deeply personal affairs. If trepidation on the part of even the Red Cross was enough to cancel such sensitivities, we would not have had a Red Crescent or a cooperation between them. If not proving one's subscription to some set of beliefs, such symbols at least disprove the same for others. No, I'm sorry, intolerance is bad, no matter who practices it. And what may be forgiveable on a battlefield is not forgiveable in my workplace. I can understand that there were specific circumstances leading to the Red Cross/Red Crescent schism, and that it had to do with long standing religious intolerance on both sides. It doesn't make it an example to follow. It is apparent that you know only part of the story. Kindly allow me to comment here. Contrary to what you might have heard there was never organized religious intolerance of Christianity by the Muslim side. To give just one easy to follow fact of history, consider this: to this day there are Arabic and Aramaic speaking Christians of Catholic, Orthodox, and Coptic origins living in the Middle East. Some say about twenty million or so. The Muslims who lived in modern day Spain, on the other hand, were either wiped out or forcibly made to convert to Christianity. And their numbers were in the hundreds of thousands if not millions. And this is just one example. But sheesh, if I objected to every picture of the moon I see (or pictures that vaguely resemble a moon), I would be in a very sad state. Come to think of it, I have a crescent as a background on my company website (it's Neptune, not Luna, but it certainly resembles a crescent moon more than that Python thing resembles a cross). Nevertheless, I am not Muslim. But you see Terry, the point is not that it is just a picture. And let's not forget that as far as we know the moon has always been a natural part of all human life on this earth before and after Islam, and even for those who never heard of Islam. And so the moon is not a Muslim monopoly. If the crescent was dropped altogether as an identifying symbol no Muslim will lose sleep over it. Do you know why? Because it is not an object of worship, Terry. Here is Almighty God's command to us concerning the sun and moon: Among His Signs are the Night and the Day, and the Sun and the Moon. Do not prostrate to the sun and the moon, but prostrate to Allah, Who created them, if it is Him ye wish to serve. (Translation, Glorious Qur'an, 41: 37) The crescent found its way on top of domes on Mosques only to point to the direction of the Qibla in Mecca, where all Muslims face to pray. When a Mosque is built the crescent on the dome is made to face parallel to the direction of Qibla. The early Muslims could have chosen any other symbol to point to the Qibla, but they choose the crescent only to be different, and hence to be free from the consequences that other symbols might bring. After all some of these symbols are more or less worshiped. And here I am thinking of the cross. I feel I must stress again that there is no intolerance here, brother. It is hard to deny the fact that many people do kiss the cross, kneel before the cross, and pray beneath the crucifix, is it not? If that is not worship then what is? A Muslim who does that to the crescent is no Muslim. Period. For a Muslim kneels to no one and worships no one but Almighty God. And just to point to you the significance of this in case you don't know, the greatest sin in Islam is the worshiping of others (or things) besides Almighty God, who has no equals. Allah forgiveth not that partners should be set up with Him; but He forgiveth anything else, to whom He pleaseth; to set up partners with Allah is to devise a sin Most heinous indeed. (Translation, Glorious Qur'an, 4: 48) And so to summarize: even if I invent a product and place a crescent on it, you are (as a non-Muslim) not under any obligation or threat of confusing your support for your faith (whatever it may be), because the moon is not a Muslim object of worship nor is it a Muslim monopoly. You forcing the cross on a product that Muslims might use, on the other hand, puts them in a difficult position. After all the cross seems like an object of worship and it seems the indispensable source of identity for Christianity. I do realize that I have no
Re: Some thougts on cartesian products
Christoph Zwerschke wrote: Sometimes I was missing such a feature. What I expect as the result is the cartesian product of the strings. I've been thinking of it as well. I'd like it for lists too: range(3)**2 [(0,0), (0,1), (0,2), (1,0), (1,1), (1,2), (2,0), (2,1), (2,2)] -- Giovanni Bajo -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
� wrote: Steve Holden wrote: Tim Golden wrote: [Steve Holden] | https://svn.python.org/www/trunk/beta.python.org | but I don't know whether anonymous access is enabled. Maybe you can let |me know ... Doesn't look like it. Asking me for authentication. I've finally gotten to install pyramid and build the very small and outdated subset of the beta pydotorg site. Obviously, I'd like to have access to the real data in the python.org SVN. Rats, thanks for letting me know. As a first step I'd like to open up anonymous access to both the content and the site generation software, so that people can experiment with local content generation. Then once someone knows how to use the system they can get a login for the SVN system and start editing site content. I'll get back to the list with instructions ASAP. It may take a while due to inter-continental time differences and general overwork. Hi, I'm hopefully catching up with Andrew Kuchling today who can set up the anonymous access for the data repo. Thanks for installing pyramid! Can you give me any feedback on what parts of the install process were painful.. I'm trying my best to improve the help text and make changes to readme's etc. Tim -- http://mail.python.org/mailman/listinfo/python-list
Re: Arithmetic sequences in Python
Paul Rubin wrote: Tom Anderson [EMAIL PROTECTED] writes: listx/dictx/setx would be the display forms as well as the constructor forms. Could these even replace the current forms? If you want the equivalent of list(sometuple), write list(*sometuple). The current list function is supposed to be something like a typecast: list() isn't a function, it's a type. type(list) type 'type' I'm not happy about the way the documentation represents types as functions, as this obscures the whole essence of Python's object orientation. list() = [] xlist() = [] # ok list(list()) = [] # casting a list to a list does nothing xlist(xlist()) = [[]] # make a new list, not the same list(xrange(4)) = [0,1,2,3] xlist(xrange(4)) = [xrange(4)] # not the same list((1,2)) = [1,2] xlist((1,2)) = [(1,2)] etc. I presume that here = means evaluates to? regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC www.holdenweb.com PyCon TX 2006 www.python.org/pycon/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Error in Python documentation
Peter wrote: From http://www.python.org/doc/2.4.2/ go to the Library reference http://www.python.org/doc/2.4.2/lib/lib.html from there to the index (i) at http://www.python.org/doc/2.4.2/lib/genindex.html. In the index select 'p' and click to reach http://www.python.org/doc/2.4.2/lib/types.html#l2h-90 . At the foot of this page is a link: See About this document... for information on suggesting changes. which if you follow takes you to http://www.python.org/doc/2.4.2/lib/about.html where there is: If you find specific errors in this document, either in the content or the presentation, please report the bug at the Python Bug Tracker at SourceForge. So you need to add a bug to the Python bug tracker -- at least so it seems. That's somewhat ingenuous, since that sentence is immediately preceded by General comments and questions regarding this document should be sent by email to [EMAIL PROTECTED] . I should have thought that inability to register a bug on Sourceforge would have justified an email to [EMAIL PROTECTED] Did you send such an email? I'm sure that your comments would be actioned. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC www.holdenweb.com PyCon TX 2006 www.python.org/pycon/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
J [EMAIL PROTECTED] writes: I hope the title of this message indicates my question. I am looking for basic array functionality in Python and it turns out that there are all these packages which are somehow related. Some are allegedly discontinued but still seem to get updated. It's well explained in the homepage: numpy.scipy.org AFAIK you should use numpy for future use. -- Lawrence - http://www.oluyede.org/blog Anyone can freely use whatever he wants but the light at the end of the tunnel for most of his problems is Python -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website?
Obaid R. wrote: Terry Hancock wrote: On 18 Jan 2006 18:05:18 -0800 Obaid R. [EMAIL PROTECTED] wrote: I hope it is not counted against me that I am the first one to point out that the logo is shaped like a cross. [...] Hey, looks more like a Yin-Yang symbol to me. ;-) True. But I hope you are not arguing that since it looks to you like a Yin-Yang that it makes it therefore not look like a cross. For even Steve did say that there is no point arguing against what appears like a matter of fact. And why ask with any trepidation, Steve? People of different backgrounds have dissimilar sensitivities. I hope you agree that it would be unfair to blame people for such deeply personal affairs. If trepidation on the part of even the Red Cross was enough to cancel such sensitivities, we would not have had a Red Crescent or a cooperation between them. If not proving one's subscription to some set of beliefs, such symbols at least disprove the same for others. No, I'm sorry, intolerance is bad, no matter who practices it. And what may be forgiveable on a battlefield is not forgiveable in my workplace. I can understand that there were specific circumstances leading to the Red Cross/Red Crescent schism, and that it had to do with long standing religious intolerance on both sides. It doesn't make it an example to follow. It is apparent that you know only part of the story. Kindly allow me to comment here. [...] Now, this is exactly the reason for the trepidation in my original reply. Allow me to simply state, regardless of the content of the rest of this reply, that such discussions are completely off-topic for this list. I have no objections to people holding or voicing religious beliefs, nor to discussions of history. It's simply that c.l.py is a very high-bandwidth list, and every off-topic thread reduces its usefulness for people seeking information about and assistance with Python. Experience shows that this kind of exchange can expand and run on for days, so I'd be very grateful if the participants would take this discussion to private email or some other forum. regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC www.holdenweb.com PyCon TX 2006 www.python.org/pycon/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Firefox bug in webbrowser module on Ubuntu?!
Paul Boddie napisał(a): There are certain ways to override the autodetection in use within that module, and a DESKTOP_LAUNCH environment variable can also be set to configure its behaviour further. Unfortunately, attempts to confirm the standardisation status of that variable failed to cut through the turf wars, newbie-bashing and MIME type hair-splitting on the xdg mailing list, but a Google search seemed to suggest that my application of it isn't inappropriate. As this isn't yet actual standard but proposed only, I decided to give my users ability to select preferred way to open media files, so even running some exotic desktop (Fluxbox and FVWM are very popular choices here) they can open urls from my application using either kfmclient, gnome-open or custom defined command. -- Jarek Zgoda http://jpa.berlios.de/ -- http://mail.python.org/mailman/listinfo/python-list
Re: How to generate graphics dynamically on the web using Python CGI script?
Xavier Morel wrote: Well, some people have been crazy enough lately to generate more or less imageless bar graphs though, see Eric Meyer's Bar Graphs with Style (http://meyerweb.com/eric/thoughts/2005/12/20/bar-graphs-with-style/) for more informations on the subject (http://meyerweb.com/eric/css/edge/bargraph/demo.html for a demo) I think that can be sometimes a clever solution. There's even a full VectorGraphics-Library available: http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm You don't even need a graphics lib and CGI program on the server to create the graphics, and no plug-in on the browser. Just CSS and JavaScript; it works with all modern browsers. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: OT: excellent book on information theory
Paul Rubin wrote: signal processing, for example. Perhaps it could be improved by being more explicit about what the reader needs to know, and giving references to other books where the prerequisites can be found. There are lots of good explanations, graphs, diagrams and such things in the margins (I'm a few pages further in the book now) but the main course seems to be mathematical formulas. The author should reverse the roles these presentations play, move the archaic math jargon to the margin, or better to a separate latech document, suitable for those unwilling to join the rest of humanity. A separate Python library would be handy too, and if not in the main text it could still be useful for those who lack training in obscure scientific dialects and want to understand things without any agreed upon beforehand gibberish that is mainly meant to exclude those not in the guild. I also don't think presenting the math in Python would make things any easier conceptually. The math in Sussman and Wisdom's Structure and Interpretation of Classical Mechanics is all presented in Scheme, but it's still the same math that's normally presented as equations, and you have to think just as hard to understand it. The problem for me is that I recognize many of the used concepts, but they seem to be deliberately put in cryptic greek letters and undecipherable gibberish. It would not be necessary to present the math in Python, any reasonably consistent kind of pseudocode (but not Scheme or math notation) would made things a lot more clear to me. Something on a related subject with a presentation I like a bit better (but it has its problems too, while your book has more of these nice explanations and stuff, although in the margin): http://www.math.mtu.edu/~kreher/cages.html The authors of this book also seems to think we cannot do without obscure math notation, something which I disagree with very much, but at least they provide some pseudo code and some computer code, unfortunately in C but still better than nothing. The text of the book is not downloadable, but the algorithms source codes are. All of the books writers seem to have not caught up with the idea of hyperlinks and continue to dwell in neolithical paper dreams :-) If they only woke up and let someone like me write some Visual Python code to illustrate the algorithms or even let me just write Python implementations of the algorithms to accompany the books, I'd probably have work for years to come. Math is a beautiful subject, and is not at all secret or inaccessible. Try to broaden your horizons a bit ;-). I hope you're not trying to outexpertize me. You seem to be thinking that you know more about math than me, probably because you have a formal education in the subject? If so, you're proving my point, and thank you very much. Anton -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
On Sat, 21 Jan 2006, Robert Kern wrote: Tom Anderson wrote: Pardon my failure to RTFM, but does NumPy pick up the vecLib BLAS on Macs? Yes. Excellent, thanks. tom -- forget everything from school -- you are programmer -- http://mail.python.org/mailman/listinfo/python-list
Background/foreground on disabled Tkinter.Entry
If I create a Tkinter.Entry widget, I can adjust the background and the text colours, using the background and foreground options. However, if the state is disabled, then this has no effect and it just appears as grey on a light grey background. E.g., Tkinter.Entry(root, foreground=black, background=white, state=disabled).grid() does not do what I expected. What is the correct way to adjust the foreground and background on disabled Entry widgets? Thanks, Martyn -- http://mail.python.org/mailman/listinfo/python-list
Re: Background/foreground on disabled Tkinter.Entry
Martyn Quick wrote: If I create a Tkinter.Entry widget, I can adjust the background and the text colours, using the background and foreground options. However, if the state is disabled, then this has no effect and it just appears as grey on a light grey background. E.g., Tkinter.Entry(root, foreground=black, background=white, state=disabled).grid() does not do what I expected. What is the correct way to adjust the foreground and background on disabled Entry widgets? tkinter has separate disabledbackground and disableforeground options for this purpose: http://www.effbot.org/tkinterbook/entry.htm#Tkinter.Entry.config-method /F -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
If I see this correctly, Fredrik would volonteer to (help) implement something that imports the current python.org content into a Wiki. Exactly. I don't really have time for this tonight, and I've spent more time copying and pasting stuff than working on the converter, but I've posted a couple of rough auto-conversions over at the moinmoin wiki: http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg/CommunityPage http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg/DevPage for the curious, I've found a few more spare 15-minute slots, and a more extensive (but still rough) translation is available here: http://effbot.org/pydotorg/ the sample site contains ~600 pages. each page has been automatically translated from python.org sources to moinmoin markup, and then stored in a moinmoin 1.5 instance. a separate component has then extracted the pages from moinmoin, and converted them XHTML fragments for rendering. (the sample pages on that page are basically the XHTML fragments as is; the final site generator should of course use a suitable templating system and nice CSS for the final product). (or maybe the entire site should be a run via a web framework with good support for caching, such as http://www.djangoproject.com/documentation/cache/ any django hackers around with some cycles to spare ? ) /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Decimal vs float
Tim Peters wrote: [Kay Schluehr] I concur and I wonder why CAS like e.g. Maple that represent floating point numbers using two integers [1] are neither awkward to use nor inefficient. My guess is that it's because you never timed the difference in Maple -- or, perhaps, that you did, but misinterpreted the results. You don't give any data, so it's hard to guess which. BTW, why do you think Maple's developers added the UseHardwareFloats option? For no good reason at least not as a public interface. But since the value of UseHardwareFloats is deduced from the accuracy ( Digits environment variable ) a programmer has seldom to deal explicitely with UseHardwareFloats. That means he pays for accuracy only, what is the essential numerical information. I guess an analogy is the use of integers in Python with the differerence that precision is replaced by the amount of absolute value. The solution is so nice that I wonder why floats and decimals could not be unified in a similar way? According to the Python numeric experts one has to pay a high tradeoff between speed and accuracy. But as it seems it just compares two Python implementations ( float / decimal ) and does not compare those to approaches in other scientific computing systems. It's easy to find papers comparing the speed of HW and SW floating point in Maple. Have you done that, Kay? O.K. you are right here. For example, read: Symbolic and Numeric Scientific Computation in Maple K.O. Geddes, H.Q. Le http://www.scg.uwaterloo.ca/~kogeddes/papers/ICAAA02.ps Keith Geddes is a key figure in Maple's history and development, and can hardly be accused of being a Python apologist ;-) Note that Example 1.5 there shows a _factor_ of 47 speed gain from using HW instead of SW floats in Maple, when solving a reasonably large system of linear equations. So I'll ask again ;-): why do you think Maple's developers added the UseHardwareFloats option? While that paper mentions the facility only briefly, Geddes and Zheng give detailed analyses of the tradeoffs in Maple here: Exploiting Fast Hardware Floating Point in High Precision Computation http://www.scg.uwaterloo.ca/~kogeddes/papers/TR200241.ps If you're uncomfortable reading technical papers, one bottom line is that they show that the time required by Maple to do a floating-point multiplication in software is at least 1000 times larger than doing the same with UseHardwareFloats set to true (and Digits:=15 in both cases). No, it's perfect, Tim. Thanks for the links. By the way one can also learn from Maple how accuracy can be adjusted practically. I never heard users complaining about that. It's easy to change the number of digits of precision in Python's decimal module. If I remember correctly it was Steve Holden who complained that explaining accuracy by means of the decimal module would be a non issue for beginners in Python. I have nothing to complain here ( o.k. nesting two levels deep to set prec is less nice than having Digits offered by the CAS immediately. But this is more cosmetic ). Kay -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
Robert Kern wrote: J wrote: I will just jump in an use NumPy. I hope this one will stick and evolve into the mother of array packages. How stable is it ? For now I really just need basic linear algebra. i.e. matrix multiplication, dot, cross etc Same concern for me. I discovered recently that I could not rely on numeric anymore because 'eigenvalue' is now broken on my platform. This bug has been referenced but not corrected AFAIK. Too bad that numeric is not actively maintained anymore. Easy-to-install, good doc, well-thought interface, really good stuff ! Bye-bye Numeric ! By the way, I tried numpy 0.9.4 10 minutes ago and guess what ? 'eigenvalue' is broken too ... (hangs forever) I do really hope the numpy will become the robust, best-of-breed Python Array/Matrix lib that many people are waiting for. But in the meantime, it's back to Matlab :( SB -- http://mail.python.org/mailman/listinfo/python-list
OpenGL
Hey, I've been searching for something like a PyOpenGL implementation that allows Python to use OpenGL, found only a few projects and most are either in beta and dead, or alpha stage. Anyone knows a package thats currently being worked on and is functional? Thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: OpenGL
NaeRey wrote:
Hey, I've been searching for something like a PyOpenGL implementation
that allows Python to use OpenGL, found only a few projects and most
are either in beta and dead, or alpha stage.
Anyone knows a package thats currently being worked on and is
functional?
Thanks
Something _like_ a PyOpenGL implementation? What about PyOpenGL itself?
http://pyopengl.sourceforge.net/
Will McGugan
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.join({'*':'@','^':'.'}.get(c,0) or chr(97+(ord(c)-84)%26) for c in
jvyy*jvyyzpthtna^pbz)
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Re: OpenGL
NaeRey wrote: Hey, I've been searching for something like a PyOpenGL implementation that allows Python to use OpenGL, found only a few projects and most are either in beta and dead, or alpha stage. http://pyopengl.sourceforge.net/ /F -- http://mail.python.org/mailman/listinfo/python-list
Re: new.instancemethod as a form of partial()
[EMAIL PROTECTED] wrote: ... thanks. So in this special case, None is being treated as a flag rather than just an instance(I just read the doc) like any other instance and the behaviour is intended. Is there any reason why it is designed this way ? I didn't yet know Python back when it was designed (dark ages, really), but I assume the point was that, back then, we only had what's now the legacy object model: bound methods could only be bound to instances, classes were distinct from types, etc. So, an im_self that wasn't an instance had no possible normal meaning, and None was a handy placeholder. Of course, this design then couldn't be changed (nor can it be now, until 3.0) to preserve backwards compatibility. Guido has mused about abolishing unbound methods (in 3.0, I guess), so there's hope for the future. But a more complete 'partial' is likely to be acceptable sooner than any fix to bound/unbound methods: I suspect the only ingredient that's missing is a generous helping of irrefutable use cases. Alex -- http://mail.python.org/mailman/listinfo/python-list
Catching very specific exceptions
I am running the following code: import socket host = '9.9.45.103' port = 10001 conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM) conn.connect((host, port)) When conn.connect() is run, there can be two different exceptions: socket.error: (10061, 'Connection refused') socket.error: (10060, 'Operation timed out') How can I set up exceptions for each of these differently? Normally I would use: except socket.error: code goes here... Of course, though, these are two separate error messages under the same error handler though. I've tried: except socket.error, (10061, 'Connection refused'): and except (socket.error, 10061, 'Connection refused'): to no avail. What do I need to do to catch each one specifically? Thanks, Harlin Seritt -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tim Parkin wrote: [...] Thanks for installing pyramid! Can you give me any feedback on what parts of the install process were painful.. There was nothing particularly painful. I tried to avoid having to install everything manually and to use the packages that my system (Ubuntu 5.10) provides where possible. In the end, this were only the Zope Interfaces and Twisted. Everything else was either in too old versions in Ubuntu or not packaged. - -- Gerhard -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFD06YldIO4ozGCH14RAkJzAJ9SXjcDRnUIdkAVQIGCWiJyWKZHVwCgpsj6 irzdJP0rSR+IE81f5cAGkTU= =u3i0 -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Giovanni Bajo wrote: Christoph Zwerschke wrote: Sometimes I was missing such a feature. What I expect as the result is the cartesian product of the strings. I've been thinking of it as well. I'd like it for lists too: range(3)**2 [(0,0), (0,1), (0,2), (1,0), (1,1), (1,2), (2,0), (2,1), (2,2)] -- Giovanni Bajo But why isn't this interpreted as [0, 1, 4] like it is in Mathematica? I would prefer a polymorphic distribute(*args) function ( or generator ) that acts on tuples of listlike objects of equal size. It could be extended to distribute(*args[,default]) by a single default argument that is inserted in the distribution table when two listlike objects have not the same size. Kay -- http://mail.python.org/mailman/listinfo/python-list
Concatinating PDF files
I am converting TIFF images of patents to PDF files. Each patent comes in about 20 seperate TIFF images and I want to put them all in the one PDF file. Is there a way to do this? Using the Image library I think you can only convert individual TIFF images to PDF? Maybe there is a way of concatinating these files or maybe there is a way to create the PDF from the TIFFs in the first place? -- http://mail.python.org/mailman/listinfo/python-list
Re: OpenGL
If you notice the project died, being latest release Jan2 2005. Thats over a year old. -- http://mail.python.org/mailman/listinfo/python-list
Re: Dynamic website content
Flushing to stdout doesn't seem to work anyway. Honestly have no idea how you'd implement it in Javascript so might have an ask on one of their forums... -- http://mail.python.org/mailman/listinfo/python-list
Re: OpenGL
NaeRey wrote: If you notice the project died, being latest release Jan2 2005. Thats over a year old. so? OpenGL itself hasn't had a release since 2004. that's even more dead. /F -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
I've also done some experimentation this weekend, and my solution would
be based on MoinMoin and KID.
Fredrik Lundh wrote:
[...] and a more
extensive (but still rough) translation is available here:
http://effbot.org/pydotorg/
the sample site contains ~600 pages. each page has been automatically
translated from python.org sources to moinmoin markup, and then stored
in a moinmoin 1.5 instance. a separate component has then extracted the
pages from moinmoin, and converted them XHTML fragments for rendering.
Great.
This sounds a lot like the ugly hacked script I produced that would dump
all MoinMoin contents to XHTML in one directory, and the raw MoinMoin
sources to another directory:
http://ghaering.de/pydotorg/dumpwiki.py
(the sample pages on that page are basically the XHTML fragments as is;
the final site generator should of course use a suitable templating system
and nice CSS for the final product). [...]
The other part of my experiment was a stupid build system that
recursively looks for KID files in a directory tree and renders them to
HTML.
My idea is that for each KID file there would be a corresponding
content.xml file that would come from the MoinMoin dump-to-XHTML (*).
As for the navigation, my solution would look like this:
- each KID file uses a master KID template
- the normal KID files do look about like this:
html py:extends='templates/layout.kid'
xmlns:py=http://purl.org/kid/ns#;
head
titleThe page title/title
/head
body
div py:replace=document('src/content.xml') /
/body
/html
i. e. all they do is define the page title, and include the content
XML file created from MoinMoin.
- the make-like generator script will give each template its name as
a parameter, so that the template (and in particular the master
template) know what the current path is. Using this information, it can
render the left-side navigation bar appropriately.
- If there really is a need to, additional processing instructions can
be put as comments in MoinMoin at the top of a wiki page, like:
## RENDER hideNav(/dev); expandNav(/about)
As we also have access to the dumped raw MoinMoin sources, we could
parse these comments and handle them while rendering the KID templates.
IMO this system would be flexible enough to do all that the current one
can do, and integrate nicely with MoinMoin.
It would be not *ALL* dynamic via MoinMoin, but at least the contents
can be editied through a Wiki. Site structure would still be editied via
the filesystem.
What do you think of an approach like this?
- -- Gerhard
(*) MoinMoin dumps do not always produce valid XHTML, so eventually I
still need a cleanup step.
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Version: GnuPG v1.4.1 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFD062EdIO4ozGCH14RAhoRAJ9pumD9LpKRohngbacHXSaub+zYtQCgmyHd
m9cCT2pXdRRIX0Qg+qdgMDM=
=hljf
-END PGP SIGNATURE-
--
http://mail.python.org/mailman/listinfo/python-list
Re: new.instancemethod as a form of partial()
Alex Martelli wrote: Guido has mused about abolishing unbound methods (in 3.0, I guess), so there's hope for the future. But a more complete 'partial' is likely to be acceptable sooner than any fix to bound/unbound methods: I suspect the only ingredient that's missing is a generous helping of irrefutable use cases. So long the new partial() has this case covered, it is fine. As it seems that this recipe http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52549 also forgot this special case(down to the bottom, the current curry code). -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Kay Schluehr [EMAIL PROTECTED] wrote: ... range(3)**2 [(0,0), (0,1), (0,2), (1,0), (1,1), (1,2), (2,0), (2,1), (2,2)] ... But why isn't this interpreted as [0, 1, 4] like it is in Mathematica? Since range(3)*2 is [0, 1, 2, 0, 1, 2], it would be horribly, painfully inconsistent if **2 was interpreted as square each item. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
Harlin Seritt [EMAIL PROTECTED] wrote: except socket.error: code goes here... Of course, though, these are two separate error messages under the same error handler though. I've tried: except socket.error, (10061, 'Connection refused'): and except (socket.error, 10061, 'Connection refused'): to no avail. What do I need to do to catch each one specifically? what I've done in such situations is except socket.error, e: if e.errno == 10061: ... elif e.errno == 10060: ... else: raise Not sure the code in a socket.error has attributename 'errno', but I hope you get the general idea. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: [Python for .NET] Any plans for supporting CLR2.0?
Terry Reedy wrote: F. GEIGER [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I'm on .NET/CLR2.0 and would like to use some stuff from w/i Python. The Python for .NET file name suggests that CLR1.1 is needed. Is that right? Any known plans to change this? Most responders here use CPython. The IronPython users mailing list, mirrored as gmane.comp.python.ironpython.users (see gmane.org) would more likely give you an authoritative answer. Sorry, for not being precise about Python for .NET: I didn't mean IronPython, which I'am aware of, I meant http://www.zope.org/Members/Brian/PythonNet Terry J. Reedy Kind regards Franz GEIGER -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Kay Schluehr schrieb: But why isn't this interpreted as [0, 1, 4] like it is in Mathematica? Because we are thinking of a cartesian product. If you have lists of numbers, then there are mane more ways to define a product: tensor product, vector product, scalar product, componentwise product... The cartesian product is a much more generic concept, you can have it already for sets: class sset(set): def __mul__(self, other): return sset((a,b) for a in self for b in other) def __pow__(self, other): if isinstance(other, int) and other 0: if other == 1: return self elif other == 2: return self*self else: return sset(a + (b,) \ for a in self**(other-1) for b in self) Example: for x in sorted(sset(ACGU)**3): print ''.join(x) AAA AAC AAG AAU ACA ACC . . . UGU UUA UUC UUG UUU Now as I'm thinking about it, wouldn't it be nice to have the cartesian products on Python sets? Maybe also a method that returns the power set of a set (the set of all subsets), or the set of all subsets with a given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: [Python for .NET] Any plans for supporting CLR2.0?
F. GEIGER wrote: Sorry, for not being precise about Python for .NET: I didn't mean IronPython, which I'am aware of, I meant http://www.zope.org/Members/Brian/PythonNet Kind regards Franz GEIGER Python for .NET has a separate list, see: http://mail.python.org/mailman/listinfo/pythondotnet . Ziga Seilnacht -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Alex Martelli wrote: Kay Schluehr [EMAIL PROTECTED] wrote: range(3)**2 But why isn't this interpreted as [0, 1, 4] like it is in Mathematica? Since range(3)*2 is [0, 1, 2, 0, 1, 2], it would be horribly, painfully inconsistent if **2 was interpreted as square each item. Yes. Python does not interpreate the product of a list with a number as a scalar product. Otherwise range(3)*2 should be [0, 1, 4] as well. For doing such things I would use a vector subtype of list. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Christoph Zwerschke [EMAIL PROTECTED] wrote: ... given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) And that would be better than the current random.sample(range(49),6) in WHAT ways, exactly...? Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: timeout a process
Thanks Tim, Yeah win32api is working normally. -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
[EMAIL PROTECTED] (Alex Martelli) writes: given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) And that would be better than the current random.sample(range(49),6) in WHAT ways, exactly...? I think the first one would be incorrect since it samples with replacement. At least, it looks like it does. -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
On Sun, 22 Jan 2006 18:29:45 +0100, Christoph Zwerschke wrote: Alex Martelli wrote: Kay Schluehr [EMAIL PROTECTED] wrote: range(3)**2 But why isn't this interpreted as [0, 1, 4] like it is in Mathematica? Since range(3)*2 is [0, 1, 2, 0, 1, 2], it would be horribly, painfully inconsistent if **2 was interpreted as square each item. Yes. Python does not interpreate the product of a list with a number as a scalar product. Otherwise range(3)*2 should be [0, 1, 4] as well. For doing such things I would use a vector subtype of list. Not everything needs to be a separate class! Why create a magic class for every piece of functionality you want? Just create functions that operate on existing classes! Instead of a class that supports cartesian products, make a function that takes two sequences and returns the cartesian product of them. (This will likely be best implemented as a generator.) If you write it properly, which is to say if you don't go out of your way to break it, this function will *automatically* work on any sequence type, lists, tuples, strings, and things you and I haven't even thought of. What advantage is there to creating a list with cartesian product subclass of list? -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Alex Martelli schrieb: Christoph Zwerschke [EMAIL PROTECTED] wrote: ... given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) And that would be better than the current random.sample(range(49),6) in WHAT ways, exactly...? You're right, random.sample(range(49),6) does the same and much faster. I just didn't think of it (it is new since Python 2.3). What if you need 12 different tips for your lotto ticket? s = set(range(49)).powerset(6) for x in range(10): print s.pop() But the real disadvantage of this idea is the memory consumed and the time to set up that memory: set(range(49)).powerset(6) has a cardinality of about 13 million entries! You PC would start to swap just for getting a lotto tip... -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Steven D'Aprano wrote: On Sun, 22 Jan 2006 18:29:45 +0100, Christoph Zwerschke wrote: For doing such things I would use a vector subtype of list. Not everything needs to be a separate class! Why create a magic class for every piece of functionality you want? Just create functions that operate on existing classes! What advantage is there to creating a list with cartesian product subclass of list? Principally, you're right (see also my example with iterators). But I can still see two reasons for classes: 1) That function would have to make a lot of case distinctions (check the types of operands). If you have a class, you already know the type of the operands (at least one). 2) It allows you to write a*b instead of mul(a,b) which looks nicer. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Paul Rubin schrieb: [EMAIL PROTECTED] (Alex Martelli) writes: given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) And that would be better than the current random.sample(range(49),6) in WHAT ways, exactly...? I think the first one would be incorrect since it samples with replacement. At least, it looks like it does. No, the elements of the powerset would be sets with 6 elements each, not tuples. So technically, it would be correct. Just horribly inefficient. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: ConfigParser: writes a list but reads a string?
funkyj wrote: making the config file XML and using xml.dom is another option, although XML is a bit ugly to edit by hand. --jfc I am seriously intrigued by ConfigObj. I am currently using an crude improvisation involving tab-delimited fields to store metadata for recordings -- not configuration data -- in text files. I had been planning to convert to XML, but now I am wondering whether ConfigObj would be easier. I would like for the metadata files to be editable, but editing does not have to be easy as it needs to be done rarely. I've never used XML, so I am wondering whether there are other tradeoffs between that approach and ConfigObj that I should be aware of. I was thinking of XML mainly to have a more robust format. For example, it would be nice if it were possible to add fields without obsoleting early versions of the reader. Crossplatform compatibility is also desirable. -- Jeffrey Barish -- http://mail.python.org/mailman/listinfo/python-list
Re: Concatinating PDF files
ReportLab maybe? http://www.reportlab.org/rl_toolkit.html -- http://mail.python.org/mailman/listinfo/python-list
Re: Background/foreground on disabled Tkinter.Entry
Thanks v. much. I'd missed that in the documentation I have access to. Martyn -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Fredrik Lundh wrote: (or maybe the entire site should be a run via a web framework with good support for caching, such as http://www.djangoproject.com/documentation/cache/ any django hackers around with some cycles to spare ? ) Yeah, I or other Django folks would be quite happy to set that up. Just let me know! Adrian -- Adrian Holovaty holovaty.com | chicagocrime.org | djangoproject.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Christoph Zwerschke [EMAIL PROTECTED] writes: No, the elements of the powerset would be sets with 6 elements each, not tuples. So technically, it would be correct. Just horribly inefficient. Oh I see, not the Cartesian product. Yeah, it would be silly in practice. -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Fredrik Lundh wrote: If I see this correctly, Fredrik would volonteer to (help) implement something that imports the current python.org content into a Wiki. Exactly. I don't really have time for this tonight, and I've spent more time copying and pasting stuff than working on the converter, but I've posted a couple of rough auto-conversions over at the moinmoin wiki: http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg/CommunityPage http://moinmoin.wikiwikiweb.de/FredrikLundh/PythonOrg/DevPage for the curious, I've found a few more spare 15-minute slots, and a more extensive (but still rough) translation is available here: http://effbot.org/pydotorg/ This is awesome. Any chance we can get our hands on the scripts or the MM markup files? Shalabh -- http://mail.python.org/mailman/listinfo/python-list
Tkinter Mouse Cursor
Checking a couple of examples I tried changing the Tkinter mouse cursor to indicate a busy state while my app is pushing/pulling xmlrpc data. It doesn't seem to make a difference as I don't notice the cursor actually change in the span of the 3-5 second transaction. I tried changing the cursor of the root widget, the toplevel widget, etc. all to no avail. Is there something really basic I'm overlooking? Is it enough to just change the state and that's it, or do I have to explictly refresh things? -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Steven D'Aprano [EMAIL PROTECTED] wrote: ... What advantage is there to creating a list with cartesian product subclass of list? Essentially, syntax sugar -- for some people, being able to code a*b rather than product(a,b) takes on a huge significance; Python chooses to support this syntax variation by special methods in classes, and thus encourages people to create classes if they're keen on the syntax. Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Christoph Zwerschke [EMAIL PROTECTED] wrote: Alex Martelli schrieb: Christoph Zwerschke [EMAIL PROTECTED] wrote: ... given length. You could get a 6/49 lotto tip with something like: choice(set(range(49)).powerset(6)) And that would be better than the current random.sample(range(49),6) in WHAT ways, exactly...? You're right, random.sample(range(49),6) does the same and much faster. I just didn't think of it (it is new since Python 2.3). Yep, it's one of 2.3's many little gems. Still, builtin set is new in 2.4, so it's hardly a more classic approach;-). What if you need 12 different tips for your lotto ticket? You probably want random ones, then... s = set(range(49)).powerset(6) for x in range(10): print s.pop() This is very systematic, not random;-). Still, using random.sample on s would indeed produce 12 random different tips!-) But the real disadvantage of this idea is the memory consumed and the time to set up that memory: set(range(49)).powerset(6) has a cardinality of about 13 million entries! You PC would start to swap just for getting a lotto tip... Well then, you need a new PC, 64-bit and with as many GB of RAM as required, no?-) Until you get such a PC, something like: tips = set() while len(tips) 10: tip = frozenzet(random.sample(range(49), 6)) tips.add(tip) will have to suffice, I guess;-). Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Gerhard Häring wrote:
The other part of my experiment was a stupid build system that
recursively looks for KID files in a directory tree and renders them to
HTML.
My idea is that for each KID file there would be a corresponding
content.xml file that would come from the MoinMoin dump-to-XHTML (*).
As for the navigation, my solution would look like this:
- each KID file uses a master KID template
- the normal KID files do look about like this:
html py:extends='templates/layout.kid'
xmlns:py=http://purl.org/kid/ns#;
head
titleThe page title/title
/head
body
div py:replace=document('src/content.xml') /
/body
/html
i. e. all they do is define the page title, and include the content
XML file created from MoinMoin.
- the make-like generator script will give each template its name as
a parameter, so that the template (and in particular the master
template) know what the current path is. Using this information, it can
render the left-side navigation bar appropriately.
- If there really is a need to, additional processing instructions can
be put as comments in MoinMoin at the top of a wiki page, like:
## RENDER hideNav(/dev); expandNav(/about)
As we also have access to the dumped raw MoinMoin sources, we could
parse these comments and handle them while rendering the KID templates.
IMO this system would be flexible enough to do all that the current one
can do, and integrate nicely with MoinMoin.
It would be not *ALL* dynamic via MoinMoin, but at least the contents
can be editied through a Wiki. Site structure would still be editied via
the filesystem.
What do you think of an approach like this?
-- Gerhard
(*) MoinMoin dumps do not always produce valid XHTML, so eventually I
still need a cleanup step.
It sounds very similar to what we have already built!! What we have also
parses yaml files, rest files, inline rest content, has special
renderers for navigation and breadcrumbs and handles cacheing of built
data to speed generation. It also keeps the format of all original
documents intact and can handle the differences in encodings that exist
in the current content. It will also include static html files (such as
some of the summaries and a lot of the pycon content), data structures
(the sigs and some other sections of the site), custom functionality
needed to remove emails from certain documents and the render some
custom data elements (peps) and the ability to add custom sidebar
elements. It also retains the ability to render complex page layouts on
the occasion they are needed. There is also a module being added that
will parse the current docs and rerender them within the site framework
adding a hierarchical navigation system.
With regards to integrating wiki content, it also has a beta directive
to include content from a wiki so there could be a good overlap here
between keeping the data stored in text files in subversion (a
requirement) and using moinmoin to help manage the content.
The goal will be to add a wiki-like rest editor that could also handle
the non-wiki/non-rest like content (such as sigs, peps, mirrors,
donations, jobs, members, psf meeting minutes, etc).
Tim
--
http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Generally, if you could multiply strings in the above fashion, you could
spare one more more sub loops, as in this example:
for f in ('index', 'default')*('.html', '.htm', '.shtml'):
if exists(f):
break
In this case, it would be not really be better than that:
for f in 'index', 'default':
for e in '.html', '.htm', '.shtml':
if exists(f+e):
break
The password cracking was already a better example.
But this would be only efficient if the product of two strings is
returned as a generator, not a list. And I don't know if you really
would expect that, since multiplying a string or a list with a number
does not change its type.
-- Christoph
--
http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
Alex Martelli wrote: what I've done in such situations is except socket.error, e: if e.errno == 10061: ... elif e.errno == 10060: ... else: raise Not sure the code in a socket.error has attributename 'errno', but I hope you get the general idea. If it does not, or as a more generally applicable solution (though less readable), one can use the args attribute: except socket.error, e: if e.args[0] == 10061: ... elif e.args[0] == 10060: ... args is just the tuple formed from the positional arguments passed to the __init__() of the exception object when it is created, as if you did: class Exception: def __init__(self, *args): self.args = args -Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
On Sun, 22 Jan 2006 10:41:39 -0800, Alex Martelli wrote: Steven D'Aprano [EMAIL PROTECTED] wrote: ... What advantage is there to creating a list with cartesian product subclass of list? Essentially, syntax sugar -- for some people, being able to code a*b rather than product(a,b) takes on a huge significance; Python chooses to support this syntax variation by special methods in classes, and thus encourages people to create classes if they're keen on the syntax. I beg to differ: Python *allows* people to create classes if they're keen on the syntax (and I can sympathise with that like), but Python *encourages* by example generic tools that operate on as many different types as makes sense. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Steven D'Aprano wrote: I beg to differ: Python *allows* people to create classes if they're keen on the syntax (and I can sympathise with that like), but Python *encourages* by example generic tools that operate on as many different types as makes sense. But these generic tools (say the pow function) in turn simply use the methods defined by the classes. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: Tkinter Mouse Cursor
Please disregard. I just issued an update() method call to refresh the GUI. This in turn displayed the proper mouse cursor that was being set with the config(cursor=xxx) method. -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Tim Parkin wrote: It sounds very similar to what we have already built!! What we have also parses yaml files, rest files, inline rest content, has special renderers for navigation and breadcrumbs and handles cacheing of built data to speed generation. except that it isn't: you're talking about a modernized version of the current HT2HTML/make system, we're talking about a purely wiki-driven system. if we add django to the mix, the pages shown to the user won't even exist on disk. /F -- http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
In article [EMAIL PROTECTED],
[EMAIL PROTECTED] (Alex Martelli) wrote:
Harlin Seritt [EMAIL PROTECTED] wrote:
except socket.error:
code goes here...
Of course, though, these are two separate error messages under the same
error handler though. I've tried:
except socket.error, (10061, 'Connection refused'):
and
except (socket.error, 10061, 'Connection refused'):
to no avail. What do I need to do to catch each one specifically?
what I've done in such situations is
except socket.error, e:
if e.errno == 10061:
...
elif e.errno == 10060:
...
else:
raise
This is not portable, however. I'm guessing you're running on Windows,
because the 10061 corresponds to:
{WSAECONNREFUSED, Connection refused},
in Python-2.3.4/Modules/socketmodule.c:set_error(). See
http://tinyurl.com/gth2 for more winsock error codes.
It would be nice if the socket library threw more specific exceptions, but
given that the underlying operating systems export such a wide variety of
system-level errors, it's not clear it's feasible, even if one wanted to
put the effort into it. Which brings us back to having to resort to
unportable tricks like the above to decipher the inner meaning.
But, the real question is, WHY do you want to differentiate between these?
The only reason to want to know which kind of connection failure you got is
because you want to do something different on some errors. What are you
going to do differently when you get one of these?
socket.error: (10061, 'Connection refused')
socket.error: (10060, 'Operation timed out')
Operationally, they're pretty much the same. One might guess that on a
timeout, it's worth waiting a while and trying again, but it may be worth
doing that on a refusal as well. Perhaps you caught the remote system
right after a reboot when the kernel network code is up, but the particular
service you're trying to connect to hasn't started yet? Perhaps there's
some kind of load-limiting in use? Perhaps the remote system is validating
connections by reverse DNS checks, and inconsistent DNS caches are causing
some connections to fail while others succeed? Any of these might deserve
a retry.
--
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Re: Some thougts on cartesian products
On Sun, 22 Jan 2006 19:12:49 +0100, Christoph Zwerschke wrote: Steven D'Aprano wrote: On Sun, 22 Jan 2006 18:29:45 +0100, Christoph Zwerschke wrote: For doing such things I would use a vector subtype of list. Not everything needs to be a separate class! Why create a magic class for every piece of functionality you want? Just create functions that operate on existing classes! What advantage is there to creating a list with cartesian product subclass of list? Principally, you're right (see also my example with iterators). But I can still see two reasons for classes: 1) That function would have to make a lot of case distinctions (check the types of operands). If you have a class, you already know the type of the operands (at least one). If you are happy to always return a list of tuples regardless of what the two operands are, generators make it so easy it is shameful. Even if you want a special case of two string arguments returning a string, it is hardly any more difficult: def cartprod(A, B): if type(A) == type(B) == str: convert = lambda obj: .join(list(obj)) else: convert = lambda obj: obj # do nothing for a in A: for b in B: yield convert((a, b)) Notice that the *only* reason we look at the type of the arguments is because we want two strings to return a string. If we don't care about that, the generator is less than half the size: def cartprod(A, B): for a in A: for b in B: yield (a, b) That's a generator giving you the products one at a time. For the benefit of anyone out there who doesn't know about generators, you use it like this: cprods = cartprod([1,2,3], abc) for t in cprods: ... print t ... (1, 'a') (1, 'b') (2, 'a') (2, 'b') (3, 'a') (3, 'b') If you want them all at once, memory allowing, you do this: cprods = cartprod([1,2,3], abc) list(cprods) [(1, 'a'), (1, 'b'), (2, 'a'), (2, 'b'), (3, 'a'), (3, 'b')] 2) It allows you to write a*b instead of mul(a,b) which looks nicer. But not as clear as cartprod(a,b) or even cartesian_product(a,b). -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
Sébastien Boisgérault wrote: By the way, I tried numpy 0.9.4 10 minutes ago and guess what ? 'eigenvalue' is broken too ... (hangs forever) On what platform? Are you linking against an optimized BLAS? We can't fix anything without details. I'll be happy to work with you on this bug over on the numpy-discussion list. -- Robert Kern [EMAIL PROTECTED] In the fields of hell where the grass grows high Are the graves of dreams allowed to die. -- Richard Harter -- http://mail.python.org/mailman/listinfo/python-list
Re: Python code written in 1998, how to improve/change it?
Bengt Richter wrote:
On Thu, 19 Jan 2006 23:16:57 -0500, Peter Hansen [EMAIL PROTECTED] wrote:
How about something like
actions = dict(
...a=compile('print A; state=b','','exec'),
...b=compile('print B; state=c','','exec'),
...c=compile('print C; state=None','','exec')
... )
state = 'a'
while state: eval(actions[state])
...
A
B
C
Good idea. But we can eliminate the dictionary lookup:
a1 = compile('print A; state=b1','','exec')
b1 = compile('print B; state=c1','','exec')
c1 = compile('print C; state=None','','exec')
state = a1
while state:
eval(state)
Cheers,
Carl
--
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Dominant color PIL
Hi!I was wondering is it possible to find out which colour is dominant in an image using PIL? It would be very easy to create interesting mozaic images with that :)Thanks, Sebastjan -- http://mail.python.org/mailman/listinfo/python-list
Re: Some thougts on cartesian products
Steven D'Aprano wrote: If you are happy to always return a list of tuples regardless of what the two operands are, generators make it so easy it is shameful. Even if you want a special case of two string arguments returning a string, it is hardly any more difficult: def cartprod(A, B): if type(A) == type(B) == str: convert = lambda obj: .join(list(obj)) else: convert = lambda obj: obj # do nothing for a in A: for b in B: yield convert((a, b)) I didn't deny that it's handy; my imul example was pretty much the same. If you don't want to use the a*b syntax, it's a good solution. -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: [XML-SIG] Howto create this XML string?
Thanks all, i've perfectly undestand the way. Thanks again.2006/1/19, Luis Miguel Morillas [EMAIL PROTECTED]:
2006/1/19, Sbaush [EMAIL PROTECTED]:
Hi all.I've this XML:manager request append mode=INPUT method type=GOOD/ source address=
127.0.0.1/ action option=OK/ /append /request/managerHow can i write this in a Python String? I would like use a xml.dom
implementation and not a banal print...print...I can't do it... Is there anyone that can explain me what is the way?Thank you!Another taste with amara:import amara
doc = amara.create_document
(umanager)doc.manager.xml_append(doc.xml_create_element(u'request'))doc.manager.request.xml_append(doc.xml_create_element( u'append', attributes={u'mode':u'INPUT'}))doc.manager.request.append.xml_append
(doc.xml_create_element( u'method', attributes={u'type':u'GOOD'}))doc.manager.request.append.xml_append(doc.xml_create_element( u'source', attributes={u'source':u'
127.0.0.1'}))doc.manager.request.append.xml_append(doc.xml_create_element( u'action', attributes={u'option':u'OK'}))print doc.xml(indent='yes')
--Luis Miguel
___XML-SIG maillist - XML-SIG@python.org
http://mail.python.org/mailman/listinfo/xml-sig-- Sbaush
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Re: New Python.org website?
But sheesh, if I objected to every picture of the moon I see (or pictures that vaguely resemble a moon), I would be in a very sad state. But you see Terry, the point is not that it is just a picture. And let's not forget that as far as we know the moon has always been a natural part of all human life on this earth before and after Islam, and even for those who never heard of Islam. And so the moon is not a Muslim monopoly. Perhaps you're not aware of this, but the 'plus' shape existed before Christianity, too. =Tony.Meyer -- http://mail.python.org/mailman/listinfo/python-list
Multiplication Station (wxPython/PyGame/OpenSource GPL)
Hello, just to announce a new version of Multiplication Station available at http://www.asymptopia.org. Multiplication Station is an OpenSource math education game. It will teach your child basic maths, guaranteed. It is multi-user, has a countdown timer and tracks high scores. All parameters are configurable through the simple admin interface. Please visit to download a copy today. Certified GPL OpenSource. Asymptopia Software | [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
Basically all I need is vectors and 3x3 matrices. hmm is numpy really efficient for 3x3 (or 4x4) matrices and vectors? IMHO an optimized matrix4x4 class can be much faster (i'm just guessing here) eg cgtypes is a simple c++ implementation with boost-python wrapper: http://cgkit.sourceforge.net/ -- http://mail.python.org/mailman/listinfo/python-list
yet another list compr. suggestion
I appologize for suggesting (though very humbly) a syntax extension (maybe particularly idiotic) but just as a wild fantasy, what would you think about this: as a substitute for filter, people often use [x for x in y if z(x)] The suggestion is that the same result could be achieved by [x in y if z(x)] -- http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
Thanks for the effort on this last post, Roy. You asked what I was hoping to do differently on these two very minutely different error messages. What I have been trying to do for some time is to write a ping client (for Win32 platform -- Yes, I develop almost exclusively for Win32 environment, unfortunately) that would be a bit less buggy than ones already written, avoid Twisted, and not even involve myself in pynms (way overkill for what I want and need). I am finding that with the many quirks (and really bad foundation for Win32 APIs) that I am having to write a lot of voodoo code so to speak. If I use a dummy port... let's say port 10001 for example... I can attempt to connect to a machine at this port. If I get an error that says Connection refused, I know that the node is up but is just not going to allow a connection. On the other hand, if I try to connect to a node and it's really not up, I'll get a Connection timed out error. In this manner I can really tell if a node is up or not (providing a TCP/IP stack is installed there). This really what I've wanted. I am not so concerned whether or not the node pongs back in a certain amount of time. Yeah normally it's annoying when people ask what you're trying to do when you ask a specific question, but in this case it's probably necessary to explain myself before some are willing to help out. I'm really not interested in even negotiating a successful connection on a specific port, but this is just a way to tell if something is up or down (and perhaps the only real way to do it running from a Win32 platform). Thanks for the help. However, if you do have suggestions on how to get this done better, I am more than glad to hear it! Thanks, Harlin Seritt -- http://mail.python.org/mailman/listinfo/python-list
Re: yet another list compr. suggestion
palo on comp.lang.python said: The suggestion is that the same result could be achieved by [x in y if z(x)] It's just a special case... and it saves very few carachters... I don't think it would justify an update to the parser. What if you want to do something like: [str(x) for x in y if z(x)] You've got to stick to the present syntax. -- Alan Franzoni [EMAIL PROTECTED] - Togli .xyz dalla mia email per contattarmi. Rremove .xyz from my address in order to contact me. - GPG Key Fingerprint: 5C77 9DC3 BD5B 3A28 E7BC 921A 0255 42AA FE06 8F3E -- http://mail.python.org/mailman/listinfo/python-list
calling python from C#...
Hi everybody, I need write an application in c#, but i wnat to use some functions that i have already written in python. Is there an easy way to call my python code from c#? I must use COM or there are other ways? And, if COM is the only way, where can i find some tutorials or examples? I've never wrote com server and i really don't know where and how to start tnx Fabio -- http://mail.python.org/mailman/listinfo/python-list
Re: yet another list compr. suggestion
you'd save more characters in [not_very_convenient_name for not_very_convenient_name in y if z] (just kidding) -- http://mail.python.org/mailman/listinfo/python-list
Re: yet another list compr. suggestion
you'd save more in [not_very_convenient_name for not_very_convenient_name in y if z] (just kidding) -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Fredrik Lundh wrote: for the curious, I've found a few more spare 15-minute slots, and a more extensive (but still rough) translation is available here: http://effbot.org/pydotorg/ I've also been messing around with different content sources, and the results can be viewed here: http://www.boddie.org.uk/python/python-site/index.html The infrastructure isn't that impressive: I just take some RSS feeds and XBEL bookmarks files, add some results from parsing the PythonEvents page on the Wiki, put them into an XML document, and then render the different pages using some XSLT-based templates. Not exactly a top-end portal solution, but does it have to be? Of course, the above works for simple portal-like overview pages, but for the real textual content you'd have to make use of more sophisticated sources than feeds and bookmarks. Arguably, organising, retrieving and presenting such content is the hard part of a project like this, and it would be interesting to see how the Wiki could be used for such purposes whilst maintaining a certain level of coherency lacking in parts of the current site (try finding definitive copyright and licence information) and in the Wiki itself (try finding anything very quickly without doing a search). Paul P.S. The events make use of the hCalendar microformat, meaning that you can export them from the page given the appropriate tools. -- http://mail.python.org/mailman/listinfo/python-list
Re: calling python from C#...
Writing COM Servers is not hard http://www.python.org/windows/win32com/QuickStartServerCom.html IronPython is the other way. Choose COM Server approach if you are using the a lot of standard library functions (as I recall IronPython is not complete here, yet). Definitely choose this approach if you are using C extensions to Python. IronPython is good for simpler Python tasks at this moment. Expect this to change in the future. Of course, there is always XML-RPC, SOAP, CORBA etc for language independence if you don't mind Client/Server setup. You can also write code in C# and drive it from Python. Check Python for .NET. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python code written in 1998, how to improve/change it?
Sorry, I can't get in. Can you please show me, how to use your approach on the simple push/push ON/OFF button for example please? PS: seriously it is not a homework :) and I feel it like a shame I am asking such a simple questions :( States: ON, OFF Transition event: push, lift transition diagram: = ___ lift | | _V___|__ ,-| ON|__ | || | lift | | push | | '--| OFF |-' || ^ | |___|push -- http://mail.python.org/mailman/listinfo/python-list
Re: OT: excellent book on information theory
Anton Vredegoor wrote: Paul Rubin wrote(): [...] All of the books writers seem to have not caught up with the idea of hyperlinks and continue to dwell in neolithical paper dreams :-) If they only woke up and let someone like me write some Visual Python code to illustrate the algorithms or even let me just write Python implementations of the algorithms to accompany the books, I'd probably have work for years to come. Math is a beautiful subject, and is not at all secret or inaccessible. Try to broaden your horizons a bit ;-). I hope you're not trying to outexpertize me. You seem to be thinking that you know more about math than me, probably because you have a formal education in the subject? If so, you're proving my point, and thank you very much. Anton Well, to me it is not a matter of formal education, or math, or Python. There should be a *fresh thought/idea* how to handle the unknown reality. The existing (formal) language, being helpful, was created hundreds years ago and of course needs an update. But again, the point is not a new tool, even very flexible like Python. I think the *direct* sensor/data-driven techniques based on parsing/understanding observations (images, fields, etc) might be a step in promising direction. Any thoughts? respectful-ly y'rs, val -- http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
Harlin Seritt [EMAIL PROTECTED] wrote: I am finding that with the many quirks (and really bad foundation for Win32 APIs) that I am having to write a lot of voodoo code so to speak. Yeah, tell me about it. My current project at work is porting our IPv6 management package (including ICMP ping) to windows; many quirks would be a good way to describe it! If I use a dummy port... let's say port 10001 for example... I can attempt to connect to a machine at this port. If I get an error that says Connection refused, I know that the node is up but is just not going to allow a connection. Maybe. It could be that some firewall between you and the target is blocking things. Depending on how the firewall is programmed, this may show up as a timeout or as a connection refused (although the former would be more common). It's also not always a clear-cut question what up means. Some operating systems can get into modes where for all intents and purposes they've crashed, but they're still answering pings and/or actively refusing connections. The traditional way to tell if a node is up is to send it an ICMP echo request, rather than trying to connect to a TCP port. You might want to look into using that instead of trying to connect to random ports. Not that that ICMP doesn't have its own problems :-) -- http://mail.python.org/mailman/listinfo/python-list
Who is www.python.org for? (was Re: New Python.org website ?)
In article [EMAIL PROTECTED], JW [EMAIL PROTECTED] wrote: Agreed. The main page should be like a slick book cover. It should grab you and leave you wanting more. I think the beta page does that pretty well. [...] Of course, I'm a minimalist. I understand techy types want the details, but I don't doubt the details will be no more than two clicks away. Which sort of gets to the heart of the argument: who is www.python.org for? I suggested one alternative a long time ago, but we never had the bandwidth to do the necessary refactor: The idea is that we make www.python.org even more minimal than the current beta.python.org; it becomes a portal similar in simplicity to google.com (with a bit more explanation). It would lead off to subdomains such as business.python.org, tech.python.org, help.python.org, and so on. That would make it easy for people to bookmark a specific section that was appropriate for their needs. If we can't do that, I think we should overall slant the focus toward the primary users of python.org: people wanting to learn Python and people doing real work in using Python. (I have mostly been keeping my mouth shut during this discussion because I'm one of the [EMAIL PROTECTED] team and therefore should be contibuting labor to make this happen -- but I haven't had the bandwidth.) -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ 19. A language that doesn't affect the way you think about programming, is not worth knowing. --Alan Perlis -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
In article [EMAIL PROTECTED], Fredrik Lundh [EMAIL PROTECTED] wrote: for the curious, I've found a few more spare 15-minute slots, and a more extensive (but still rough) translation is available here: http://effbot.org/pydotorg/ the sample site contains ~600 pages. each page has been automatically translated from python.org sources to moinmoin markup, and then stored in a moinmoin 1.5 instance. a separate component has then extracted the pages from moinmoin, and converted them XHTML fragments for rendering. That looks pretty good. The most serious bug I've found so far in your conversion is the missing form for grabbing SF bugs/patches on http://www.python.org/dev/ just after Links for Developers I'm curious what you plan to do for handling sidebar links, especially context-sensitve ones that change as you switch between sections of the site. -- Aahz ([EMAIL PROTECTED]) * http://www.pythoncraft.com/ 19. A language that doesn't affect the way you think about programming, is not worth knowing. --Alan Perlis -- http://mail.python.org/mailman/listinfo/python-list
Re: Numarray, numeric, NumPy, scpy_core ??!!
Szabolcs Nagy wrote: Basically all I need is vectors and 3x3 matrices. hmm is numpy really efficient for 3x3 (or 4x4) matrices and vectors? IMHO an optimized matrix4x4 class can be much faster (i'm just guessing here) eg cgtypes is a simple c++ implementation with boost-python wrapper: http://cgkit.sourceforge.net/ If you're operating on a single 3x3 or 4x4 matrix, nothing you do in Python will be efficient, by which I assume you mean not all that far from C speed; the interpreter overhead is simply too high. If you can operate on large blocks of small arrays and vectors at the same time, which one can usually do after consuming sufficient coffee, then yes numpy can be fast if you're careful. -tim -- http://mail.python.org/mailman/listinfo/python-list
Re: calling python from C#...
I use python for .NET in some applications... I've always used it for using c# code from python (but i had some problems using it with py2exe and win2000). I'll try using it the other way (c# calling python). I also thought about trying ironpython, but it's too young for my work projects... The COM aproach seemed more stable to me what do u think? -- http://mail.python.org/mailman/listinfo/python-list
Re: LocaWapp: localhost web applications (v.03 - 2005 Dec 31)
On 1 Jan 2006 08:15:42 -0800, LocaWapp [EMAIL PROTECTED] wrote: http://cheeseshop.python.org/packages/source/L/LocaWapp/locawapp-03.tar.gz Not Found The requested URL /packages/source/L/LocaWapp/locawapp-03.tar.gz was not found on this server. -- ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~Runsun Pan, PhD[EMAIL PROTECTED] Nat'l Center for Macromolecular Imaginghttp://ncmi.bcm.tmc.edu/ncmi/~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~ -- http://mail.python.org/mailman/listinfo/python-list
Making dir's
Hello, I am writing a script that will organize all the code in the given directory. Well, currently I have it make dir's with something like: os.mkdir(C) os.mkdir(Python) os.mkdir(ASM) And so on. That is not very practical, and I wish to change it. I was wondering if there were any other methods to which I could do this, I was thinking maybe I could put the dir names in a dictionary then have something like: os.mkdir(thedictname) This doesn't sound like it would work, maybe with a bit of tweaking to my idea. So, anyone that has any idea's on how I could do this...that would be great... Thanks for your help. -- gurusnetwork.org Gurus'Network - Are you a guru? -- http://mail.python.org/mailman/listinfo/python-list
Re: New Python.org website ?
Fredrik Lundh wrote: Tim Parkin wrote: It sounds very similar to what we have already built!! What we have also parses yaml files, rest files, inline rest content, has special renderers for navigation and breadcrumbs and handles cacheing of built data to speed generation. except that it isn't: you're talking about a modernized version of the current HT2HTML/make system, we're talking about a purely wiki-driven system. Fred, It's not a updated ht2html, just as it's not a web framework and it's also not a database backed content management system. It is what it is, text files with content on disk that get delivered as flat css/xhtml files (via a simple xml based templating system) and stored in a subversion repository. The way people edit content can be via any tool capable of editing text files. That includes, but is not limited to, textareas (via a wiki if you will) or gedit or vim or notepad. I would like your help, if you are willing, to suggest ways of parsing wiki markup into valid, semantic html that can be used on the website. I would also like you help in integrating the documentation into the website. If you want to help, send me an email, if you don't want to help but would like to continue the discussion, I'm happy to do so in private and then we can both come back and post our conclusions on the mailing list. Thanks Tim Parkin -- http://mail.python.org/mailman/listinfo/python-list
Re: Concatinating PDF files
sophie_newbie wrote: I am converting TIFF images of patents to PDF files. Each patent comes in about 20 seperate TIFF images and I want to put them all in the one PDF file. Is there a way to do this? Using the Image library I think you can only convert individual TIFF images to PDF? Maybe there is a way of concatinating these files or maybe there is a way to create the PDF from the TIFFs in the first place? There is a way, but you don't have to do it. Go to the site http://free.patentfetcher.com/Patent-Fetcher-Form.php, enter the patent number, and it will create a PDF you can download. If for some reason the site does not work, search google for fetch patent and you'll find some more. Avishay -- http://mail.python.org/mailman/listinfo/python-list
Re: Dynamic website content
sophie_newbie schrieb: Flushing to stdout doesn't seem to work anyway. Honestly have no idea how you'd implement it in Javascript so might have an ask on one of their forums... I think you need HTTP push to update the client page. See http://wp.netscape.com/assist/net_sites/pushpull.html for information about HTTP push. Peter Maas, Aachen -- http://mail.python.org/mailman/listinfo/python-list
Re: Concatinating PDF files
In [EMAIL PROTECTED], sophie_newbie wrote: I am converting TIFF images of patents to PDF files. Each patent comes in about 20 seperate TIFF images and I want to put them all in the one PDF file. Is there a way to do this? Using the Image library I think you can only convert individual TIFF images to PDF? Maybe there is a way of concatinating these files or maybe there is a way to create the PDF from the TIFFs in the first place? I use `tiffcp` for concatenating and `tiff2pdf` to convert multipage tiffs to PDF. Both command line programs are part of `libtiff`: http://www.remotesensing.org/libtiff/ Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: Making dir's
yawgmoth7 wrote: And so on. That is not very practical, and I wish to change it. I was wondering if there were any other methods to which I could do this, I was thinking maybe I could put the dir names in a dictionary then have something like: os.mkdir(thedictname) Why not use a loop? dirs = ['ASM', 'C', 'Python'] for dir in dirs: os.mkdir(dir) -- http://mail.python.org/mailman/listinfo/python-list
Re: More than you ever wanted to know about objects [was: Is everything a refrence or isn't it]
Steve Holden wrote: [...snipped a long and very helpful post addressing some questions I had regarding the nature of an object's value in python...] Sorry for the belated reply Steve (I had some access problems) but did want to let you know I found that post very informative, and wanted to thank you for it. -- http://mail.python.org/mailman/listinfo/python-list
Re: yet another list compr. suggestion
palo wrote: ... what would you think about this: as a substitute for filter, people often use [x for x in y if z(x)] The suggestion is that the same result could be achieved by [x in y if z(x)] In the original syntax, if z(x) is always true, you can leave the if z(x) part away, which is intuitive. But in your syntax, the if z(x) is essential. If you leave it away, you get a completely different construct, a list with a bool value as element. You would not expect that an if keyword indicates a loop. I think the for is absolutely essential to recognize a list comprehension, not only for the parser, but also for the human reader. It's already confusing enough. Just compare the following: [x in y] - list with one element [x in y if z(x)] - list comprehension (in your syntax) [x in y if z(x) else 0] - list with one element (Py 2.5) -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
Re: Catching very specific exceptions
Reasons why it still won't work: * Firewall * Unknown-modes-operating-systems-get-into Yeah, I dont think these things can be avoided. Nonetheless, if I can come up with some way (via help from this group--thank God!) to find if the node is up (barring the two aforementioned reasons), I am doing well. Maybe my standards are not so high. :-| Nonetheless, thanks for the help and the commentary. I was beginning to think I was losing my mind. Harlin -- http://mail.python.org/mailman/listinfo/python-list
Re: Making dir's
yawgmoth7 wrote: Hello, I am writing a script that will organize all the code in the given directory. Well, currently I have it make dir's with something like: os.mkdir(C) os.mkdir(Python) os.mkdir(ASM) And so on. That is not very practical, and I wish to change it. I was wondering if there were any other methods to which I could do this, I was thinking maybe I could put the dir names in a dictionary then have something like: os.mkdir(thedictname) This doesn't sound like it would work, maybe with a bit of tweaking to my idea. So, anyone that has any idea's on how I could do this...that would be great... Thanks for your help. -- gurusnetwork.org Gurus'Network - Are you a guru? Assuming something in the standard library doesn't do this already (shutils, os, os.path) import os def mkdirs(pths): for pth in args: os.mkdir(pth) mkdirs([C,Python, ASM]) Is that what you mean? -- http://mail.python.org/mailman/listinfo/python-list
Re: Making dir's
yawgmoth7 wrote: Hello, I am writing a script that will organize all the code in the given directory. Well, currently I have it make dir's with something like: os.mkdir(C) os.mkdir(Python) os.mkdir(ASM) And so on. That is not very practical, and I wish to change it. I was wondering if there were any other methods to which I could do this, I was thinking maybe I could put the dir names in a dictionary then have something like: os.mkdir(thedictname) This doesn't sound like it would work, maybe with a bit of tweaking to my idea. So, anyone that has any idea's on how I could do this...that would be great... Thanks for your help. -- gurusnetwork.org Gurus'Network - Are you a guru? Assuming something in the standard library doesn't do this already (shutils, os, os.path) import os def mkdirs(pths): for pth in pths: os.mkdir(pth) mkdirs([C,Python, ASM]) Is that what you mean? -- http://mail.python.org/mailman/listinfo/python-list
converting wiki markup to html (or xml)
I'm trying to convert fragments of wiki markup into fragments of html (specifically using moinmoin markup). I've managed to do this with MoinMoin but I've had to create a data directory, config file and underlay. Does anybody know if there a sane way of doing this without the extra baggage? Tim Parkin -- http://mail.python.org/mailman/listinfo/python-list
Re: Making dir's
yawgmoth7 wrote: os.mkdir(C) os.mkdir(Python) os.mkdir(ASM) And so on. That is not very practical, and I wish to change it. I was wondering if there were any other methods to which I could do this, I was thinking maybe I could put the dir names in a dictionary then have something like: os.mkdir(thedictname) For what do you need a dictionary? A list or a set should suffice: [os.mkdir(d) for d in C Python ASM.split()] If some of these directories could already exist, this may be safer: for d in C Python ASM.split(): try: os.mkdir(d) except OSError: pass Another possibility is the following: os.system(mkdir C Python ASM) -- Chris -- http://mail.python.org/mailman/listinfo/python-list
Re: Python code written in 1998, how to improve/change it?
Sorry for the typo in my previous posting. Of course it has to be: simple liftt/push ON/OFF button -- http://mail.python.org/mailman/listinfo/python-list
Re: another docs problem - imp
Steve Holden wrote: [EMAIL PROTECTED] wrote: [...snip...] Well, perhaps if you'd read the intro to the documentation (more carefully), or if you were more used to reading programming manuals, you'd quickly have recognised [, path] as meaning precisely that the path argument is optional. I did realize that. (And I have read enough other programming manuals that reading more will not affect my recognition of anything.) The issue was not the optionality of the argument, it was the type of the argument when it was supplied. [...snip...] So you think the docs should be changed if just *one* person can't understand them. Or maybe *two*? or *ten*? I don't know how many people had trouble with the text. But there were some postings, and the number of people is almost certainly orders of magnitude larger than the number that post. I continue to think that the way I interpreted it was valid, so it *is* ambiguous, even if most people quickly disambiguate it correctly. If you accept that, it should be clarified even if the number was *one*. [...snip...] How about 1 - read some clear unambiguous documentation. 2 - write the code and it works as described. Excellent. So now you only have to fix the docs and that's what everyone will do from now on. My grandfather used to own a hardware store. He frequently said he took every customer complaint very seriously. For every customer who complains, there are a 100 that just take their business elsewhere. I wonder how many people had a problem with this and lost time. Not as extreme as my case, maybe just rereading it a few times. And of course this particular piece of documentation is not an isolated instance. If you are happy with the status quo, if it is good enough fine. I am not. ...snipped long anacdote about busses... Clearly. So get your sleeves rolled up and provide a fix. Then you too will get your name in the Python documentation contributors' list. I would be sufficient reward just to get good, clear, complete accurate python docs. I agree that things that are difficult to understand could usefully be fixed. Since this is the open source world I'm unsure as to why you feel somebody else should fix it. It's also fairly obvious since you failed to find other complaints about this issue in your Google search that it isn't a frequent cause of complaint. I never suggested someone else should fix it. I am willing to submit either a doc bug reports, or patches provided that there is a reasonable chance it will result in a positive change. I am not willing to invest a lot of time summiting things that are ignored or dumped in the bit bucket. So in part, my post here was to gauge the reaction to proposed change. Frequency of public complaints is a *lousy* criteria. Very few people are going to complain publicly, especially here where suggestions that Python is not perfect are often met with derision or silence. That was the whole point of the grandfather story. -- http://mail.python.org/mailman/listinfo/python-list
