Python package Management GUI - New Project on Sourceforge
Hi all, I am pleased to announce that we have started a new python project on sourceforge. Python Package Manager pythonpkgmgr.sourceforge.net The goal is to provide a cross platform GUI tool that will vastly simplify loading and installing packages under python. - written in python - use WXWidgets for cross compatability - utilises distutils - provide a GUI wrapper for EasyInstall and pip - fetches packages from http://pypi.python.org/pypi using their XML-RPC interface. Feel free to apply to join the project and help us build the solution that we all need and deserve. Regards David Lyon -- http://mail.python.org/mailman/listinfo/python-list
Re: Python package Management GUI - New Project on Sourceforge
> What's wrong with Enstaller from Enthought ? for a start on https://svn.enthought.com/enthought/wiki/Enstaller it claims to be depracated... > Can I make a few suggestions ? Sure.. > To be truly cross platform, consider > using the Tcl/Tk toolkit rather tahn > wxWindows. Why ? Because Tcl/TK > is packaged and provided along with > most Python distributions. I agree with your point.. The problem is that Tcl/TK is a functionaly handicapped and results in a less powerful GUI. In an installer, it is not so hard to install the wxWidgets dll (under windows) But later, I won't mind redoing it in tk if it becomes too much of a hassle. > I would not simply have wrappers around > easy_install and pip, I would integrate > as best as you can into these libraries > without trying to add or rewrite too much. Sure... I agree > Also, consider integrating with yolk > as well, as it provides some food features > and functionality that easy_install and pip > don't provide. Thanks - I will check out your suggestions in detail. Take care David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python package Management GUI - New Project on Sourceforge
Hi Dave, > As of now, Enstaller 3.x is a command-line only tool but it does > provide a lot of benefits over standard setuptools -- uninstall, > update/upgrade command, found eggs aren't pre-pended to the full > sys.path but instead inserted before the containing directory, etc. Sounds extremely powerful. Maye I should be looking at offering support for driving Enstaller to the GUI tool. I think I will... Regards David -- http://mail.python.org/mailman/listinfo/python-list
Python surpasses Perl in popularity?
Interesting topic ! I would venture so far to say that perl is todays 'C'.. Perl is todays language of technical complexity. It is obscure, complex, and is oriented towards the supremely intelligent (or equally - those seeking to get 'lost' in programming). Python, whilst very powerful, doesn't have the sheer scale of contributors that Perl has. ie cpan. Many libraries, aren't as sophisticated - ie spreadsheet reading and writing. Python is very clever.. but it goes in a 'purest' direction. It is being used in stockbrocking and many other fields. It has a good following. It is being taught in schools here.. meaning it is extremely healthy. More popular doesn't always mean better... Quoting Xah Lee <[EMAIL PROTECTED]>: herald: Python surpasses Perl in popularity! According to “TIOBE Programming Community Index for November 2008” at http://www.tiobe.com/content/paperinfo/tpci/index.html it seems that Python has surpassed Perl in popularity this month! Good for Python! From my own personal experience in the programing industry, i find it hard to believe that Python actually surpassed Perl in terms of use in companies. Python is used in, Google, as everybody knows, but where else? Perl is used in, umm, about every company except Google (and probably Google too! in fact). A quick search in monster.com, i find that perl returns 2673 results, and Python returns 879 results. Perlers, you still safe! Looking at other lang popularity site, http://www.langpop.com/ it indicates that it's pretty much a tie. So, i think it's not all peaches and cream for Python yet. However, am pretty sure it'll be so in the next couple of years. (btw, for those perlers who wishes to learn Python, see a comparative tutorial: • Xah's Perl and Python Tutorial http://xahlee.org/perl-python/index.html ) Xah ∑ http://xahlee.org/ ☄ -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in popularity?
Quoting John Machin <[EMAIL PROTECTED]>: Care to elaborate on the relative unsophistication of Python spreadsheet reading and writing libraries? Cheers, John Not really. But one only has to use both languages on a regular basis to realise that perl is well ahead on the libaray/module front. Some things in python are still pretty primitive... but I know a lot of work has gone into them... just not anywhere near like what you see in perl. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in popularity?
Quoting John Machin <[EMAIL PROTECTED]>: I'll try again: On what grounds do you assert that "Many libraries, aren't as sophisticated - ie spreadsheet reading and writing."? What Python spreadsheet reading and writing libraries have you used? In what way are they less sophisticated than their perl counterparts? Do you have any particular enhancement requests? Hi John, Since you asked a second time and appear genuinely interested - I will answer properly. :-) pyExcelorator - Setting column widths. Doesn't seem to work. Nor setting attrributes in sheets. Things seem to be only half done when compared to what I have seen in Perl. Perl was much easier to get the same functionality working. Here is my particular complaint: .. from pyExcelerator import * .. .. # -- Adjust the column width if dbf1.fieldDefinitions()[f].fieldInfo()[1] == 'C': ws.col(f).width = 0x0d00 + (f * 600) in perl $sheet1->set_column(0, 0, 20); perl works nicely... I couldn't find a way to so easily set a column width... plus.. colours are all broken... If you can shed any light on it for me, I would be thankful. Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in popularity?
Quoting John Machin <[EMAIL PROTECTED]>: pyExcelerator is abandonware. Check out xlwt (a fork of pyExcelerator) at http://pypi.python.org/pypi/xlwt Thanks John. That is very helpful. I will move to that product.. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python surpasses Perl in popularity?
Quoting Lawrence D'Oliveiro <[EMAIL PROTECTED]>: Perl is the FORTRAN of scripting languages. Python is in some ways like Pascal. Java is like COBOL. C? Who knows... Your memory goes way back... haha -- http://mail.python.org/mailman/listinfo/python-list
Python/Django hosting on "normal" hosting plans
Hi All, I have chosen to use a Django app for a customer site and wish to put it up on the net. Before I waste all day trying it myself (and probably getting it wrong) I thought I would ask the experts here. My questions are: - can most everyday vanilla linux web hosts run a django site ? - can most everyday vanilla linux web hosts run python web scripts? Thanks David -- http://mail.python.org/mailman/listinfo/python-list
Re: Porting VB apps to Python for Window / Linux use
Quoting [EMAIL PROTECTED]: Stef Mientki: it's just Object Pascal , which is inferior to Python. They are quite different languages, you can't compare them in a simple way. Delphi is kinda old, so today there are better languages than Delphi (like D), but when Delphi 2-3 was out, there weren't many other languages with IDEs at its level, especially for programs with a nice GUIs plus interfaces with DBMSs. I have programmed Delphi for years.. and was pretty much forced to move to python for different reasons. I would go along best with the description of delphi being "old". It was great in its time... and had many advancements over others. Still has some things that I would dearly love in python... like "skinned" gui applications. As for porting... don't. Just rewrite them Shouldn't be so hard... David -- http://mail.python.org/mailman/listinfo/python-list
Re: How to build the pysqlite? Where to find the "sqlite3.h"?
Hi Kurda, I have been through this problem. Somebody needs to write a FAQ. Took me a few days to pinpoint the problem. Don't know which platform but I assume Linux... Python depends upon Sqlite... which is weird... but it is what I discovered... When Python is being built.. it checks for sqlite3.h.. in it's 'configure' script. If it is not there it doesn't provide any support for it. Other databases go 'ontop' of the language... so once you install your compiler/interpretor, you install your database. That is my experience. Anyway, it is the other way around with sqlite. Install sqlite.. then build python... then it will all work. The trick is having sqlite installed before the 'make configure' step in the install process. If you have sophisticated packaging system in your linux... then use that... Regards David Quoting Kurda Yon <[EMAIL PROTECTED]>: On Nov 4, 8:59 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: On Nov 5, 6:47 am, Kurda Yon <[EMAIL PROTECTED]> wrote: > Hi, > I try to "build" and "install" pysqlite? After I type "python setup.py > build" I get a lot of error messages? The first error is "src/ > connection.h:33:21: error: sqlite3.h: No such file or directory". So, > I assume that the absence of the "sqlite3.h" is the origin of the > problem. You can try downloading sqlite3 from the web and installing it in a local dir. Update pysqlite setup.cfg to add these local dir names and then try building it. -srp I see the problem. The pysqlite is a package which allows a communication between the python and sqlite. I try to install the "pysqlite" but I do not have the "sqlite" on my computer. So, I have the problem. I tried to find out how to install the sqlite3 but it seems there are no simple and clear explanations of how to do it. So, I think I will give up and search for an easier way. Tank you for your help. > I found on the web, that this file should be either in "/usr/local/ > include" or in "/usr/local/lib". I check this directories and I really > do not have the "sqlite3.h" there. > Thinks becomes even more complicated since I have no permissions to > write to the 2 above mentioned directories? So, do I have any chance > to install the pysqlite? If yes, what should I do? > Should I find the file on the web and put in in some of my directories > and then to change the path in the "setup.cfg"? > Thank you for any help. -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 2.5 and sqlite
Quoting "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>: Hi all, On a (sun) webserver that I use, there is python 2.5.1 installed. I'd like to use sqlite3 with this, however sqlite3 is not installed on the webserver. If I were able to compile sqlite using a sun machine (I normally use linux machines) and place this in my lunix home account would I be able to use python and sqlite? Any thoughts? I know its a bit of a stretch ... Can you ask them if sqlite3 is installed? and if not... to install it? You could include in your discussions "well sqlite3 is part of python" "if it isn't, you haven't installed python properly" Worth a try... -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 2.5 and sqlite
> Can you ask them if sqlite3 is installed? and if not... to install it? Why would he have to install SQLite?! Seems a stupid question. If he wants to use SQLite... it needs to be on the system ould include in your discussions "well sqlite3 is part of python" > "if it isn't, you haven't installed python properly" Sqlite3 is an optional part of Python. But Python itself is dependent upon SQlite3 being installed first... try it yourself... first compile python 2.5 from source without SQLite.. see if it works... it won't. Install Sqlite first... then compile python 2.5 from source.. python sqlite support will work... The dependency is within the make files of python 2.5. It checks whether sqlite is installed on the machine and includes support if it is there.. if not.. doesn't support it... It is very logical -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 2.5 and sqlite
Thorsten, Quoting Thorsten Kampe <[EMAIL PROTECTED]>: * (Tue, 11 Nov 2008 17:58:15 -0500) > > Can you ask them if sqlite3 is installed? and if not... to install > > it? > > Why would he have to install SQLite?! Seems a stupid question. If he wants to use SQLite... it needs to be on the system No. really...? Python cannot check whether SQLite is installed or not. Of course it can It checks whether it can find the SQLite header files. So the SQLite source (or the binary) is only needed for compiling Python. If you build SQLite support as a shared library, you need the libsqlite package (not the SQLite binary itself) at runtime. If you build it static, you don't need SQLite at all at runtime. See Martin's answer in the same thread. Anyway.. I think you just want to argue endlessly with silly statements.. you're being too pedantic.. Fact is different *nux distributions come with different parts (static/dynamic-libraries, header files etc). There is no blanket solution that will work on every platform every time. I know many *nix distro's work with python out of the box.. but we are not talking about that.. Anyway.. I have work to do Take care David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python 2.5 and sqlite
Quoting Thorsten Kampe <[EMAIL PROTECTED]>: And even if you want to compile Python yourself, SQLite doesn't have to be _installed_. You simply can dump the files wherever you like and point Python to it. This is often necessary on a machine where you cannot install anything to the default locations because you don't have admin rights. Oh.. ok now I understand what you were trying to say. That is fair enough. Take care David -- http://mail.python.org/mailman/listinfo/python-list
unziping a file in python..
It might seem a simple question.. but how does one programmaticaly unzip a file in python? In version 2.6 and above.. the zipfile module has an extractall method. But it isn't available in 2.5 or below. Any cross version, cross-platform answers welcome. Any answers specific to win32 also welcome... David -- http://mail.python.org/mailman/listinfo/python-list
Re: unziping a file in python..
On Mon, 02 Mar 2009 16:13:39 +, MRAB
wrote:
> zf = zipfile.ZipFile('Archive.zip')
> for name in zf.namelist():
> new_path = os.path.join(output_folder, name)
> data = zf.read(name)
> try:
> open(new_path, 'wb').write(data)
> except IOError:
> # Create intermediate folders and try again
> os.makedirs(os.path.dirname(new_path))
> open(new_path, 'wb').write(data)
> --
Oh thanks for that...
Seems like the answer that i was looking for
Thank you very much...
(It's a 10 liner - I can live with that)
David
--
http://mail.python.org/mailman/listinfo/python-list
Re: Python AppStore / Marketplace
Hi all, I only just noticed this thread... :-( At the moment, I am working on a Python Package Manager project on Sourceforge. http://sourceforge.net/projects/pythonpkgmgr/ Firstly, I would welcome any developers who are willing to assist. Secondly, I think there is much work to be done with python and it's handling of packages. To me it seems to need a great deal of streamlining. But I am working mainly on windows.. and i know it is really easy with ubuntu and so forth because the os seems to do the job really well. >> The client (there should be one for every supported platform) is a >> front-end application for the (PSF-) hosted "super-cheeseshop", which >> end-users are not expected to access directly. >> >> >> Is my nirvana really that far away? ;-) That's kindof what we're working on... David -- http://mail.python.org/mailman/listinfo/python-list
Re: looking for template package
> I know there are lots of template packages, but most seem aimed at web > use. > This is just text processing, not part of any web stuff. > > Any suggestions? It doesn't matter if it is web or not. it's worth using a template package. You might very much like Cheatah... only takes a day to learn and and it works well in non-web applications.. My recommendation... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Ban Xah Lee
On Mon, 09 Mar 2009 20:25:16 -0700, Jürgen Exner wrote: >>I'm certain he's the smartest computer guy on his street. > > Make that "he ist certain, he is the smartest computer guy". Which street? in a modern city? someplace in the developed world? This we need to know -- http://mail.python.org/mailman/listinfo/python-list
Re: Python AppStore / Marketplace
I think Marcel has a point... Much can be done and should be done to improve packaging and applications for python. That's why I for one am working on the python package manager project. On sourceforge. It uses the pypi interface to search. Actually we haven't made a release yet. Still many.. many things to fix. >> Using my iPhone I suddenly realize how easy it is to find applications >> in Apple's AppStore. How easy and fast it is to install or de-install >> an app. My iPhone even checks in the background if there is an upgrade >> which could be installed painlessly. > [...] >> Unfortunately there's nothing like this in the Python world... It is being worked on... > I'd be content > to hear your projection for a mere 18 years out (the amount of time > for which Python apps have been in production), or even 10 years > (which takes us back to Python 1.5). Just a GUI for package management that lets you seperate what is available for the python platform that you are running on. Install, deinstall, and get package information. https://sourceforge.net/projects/pythonpkgmgr/ We only have source at the moment. Only for windows... and only for python 2.5. Pretty limited... but we'll get there. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python AppStore / Marketplace
On Fri, 27 Mar 2009 08:16:01 -0700, Daniel Fetchinson wrote: > > How will your solution be different from distutils, setuptools, pip, > zc.buildout and a couple other similar packages I don't recall now? For a start.. it doesn't replace those.. it drives them... > Have you considered joining one of these efforts in order to not > fragment the "packaging and distribution" arena? They seem pretty comprehensive and well developed as they are. I am not sure what I could do to improve the under-the-hood functionality at this point in time. My GUI just drives their back end code.. > Have you evaluated these solutions in detail and have found that they > are not appropriate for your needs? Yes. They don't have a GUI. If yes, what is the most problematic features of these > already existing solutions that you don't like? Not having a GUI is the biggest problem. Since I am swapping languages (Python/Perl/+1 more) in any given day I'm just after something that is "simple". I can never remember the commandlines.. Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: email from windows
Hi Prakash,
You need to tell the system your smtp host...
ie
> server = smtplib.SMTP('localhost')
needs to read something like
server = smtplib.SMTP('smtp.myisp.in')
On Mon, 30 Mar 2009 08:58:49 +0530, prakash jp
wrote:
> preexistant code :
>
> import sys, smtplib
> import string
> fromaddr = raw_input("From: ")
> toaddrs = string.splitfields(raw_input("To: "), ',')
> print "Enter message, end with ^D:"
> msg = ''
> count = 3
> while count > 0:
> line = sys.stdin.readline()
> #if not line:
> #break
> msg = msg + line
> count = count -1
> # The actual mail send
> server = smtplib.SMTP('localhost')
> server.sendmail(fromaddr, toaddrs, msg)
> server.quit()
>
> -
> Running the program:
> --
> From: prakash.st...@gmail.com
> To: prakash.st...@gmail.com
> hai
> how r
> u
> ---
> error creeps in :
> error says
>
> Traceback (most recent call last):
> File "C:\Python25\python-collection\mail\mail.py", line 17, in
> server = smtplib.SMTP('localhost')
> File "C:\Python25\lib\smtplib.py", line 244, in __init__
> (code, msg) = self.connect(host, port)
> File "C:\Python25\lib\smtplib.py", line 310, in connect
> raise socket.error, msg
> error: (10061, 'Connection refused')
>
> On Mon, Mar 30, 2009 at 7:40 AM, prakash jp
> wrote:
>
>> Hi all,
>>
>> In windows environment, how to send email from one gmail address to
> another
>> gmail (or another mail) addrress
>>
>>
>> Regards
>> Prakash
>>
--
http://mail.python.org/mailman/listinfo/python-list
running pkg_resources from a compiled py2exe prog ram
Hi, I'm trying to make an exe that uses pkg_resources. Every time I try to run the compiled version it always fails complaining that it is missing pkg_resources. Traceback (most recent call last): File "PythonPackageManager.py", line 6, in import MainWindow File "MainWindow.pyc", line 16, in File "Packaging.pyc", line 9, in ImportError: No module named pkg_resources This only happens in the .exe version. It runs fine without compilation. Any ideas? David -- http://mail.python.org/mailman/listinfo/python-list
running pkg_resources from a compiled py2exe prog ram
btw the code is just.. import ConfigParser import zipfile import os import subprocess import getopt, sys import os.path import _winreg import pkg_resources -- http://mail.python.org/mailman/listinfo/python-list
Re: installer for py2exe files?
Hi Gabriel, look at ... - inno setup http://jrsoftware.org/isinfo.php - nsis http://sourceforge.net/projects/nsis/ I think these are the two clear leaders for open source... On Wed, 22 Apr 2009 11:17:10 +0200, Gabriel Rossetti wrote: > Hello everyone, > > I am wanting to create an installer for my project. I first use py2exe > to create win32 executables and then would like to have an easy to use > (for the end user) installer. I would need the installer to launch a > script (a python script also turned into an exec) after the install is > done, or even better yet, incorperate the script's tasks in the > installation process (configure files, check for open ports, etc.). Does > anyone have an idea, recommendation or has had a similar situation before? > > Thanks! > Gabriel > -- > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
Hi all, I'm working on a python package manager gui. Mainly because I struggle on windows getting python packages installed. In my mind, there seemed to be some minor problems, but then I did the numbers. Do the numbers I writa about here reflect reality? Should we discuss stuff like this? Debate welcome... = Introduction = One of the big challenges for Python going forward is providing a testing infrastructure for Python Packages. There are now over 6,000 packages listed on PyPi - and this number can only get bigger. Then, there are the three major operating systems: * Windows * Mac * Linix/Unix To complicate the problem, there are now many versions of each operating system. Multiply those two combinations by all of the versions of Python that already exist (not to mention the ones coming) and we start to that we are heading into complexity. If there are 4 major windows revisions and 4 major Linuxes, and two major Mac platforms, we end up with perphaps (6,000 x (4 + 4 + 2)) 60,000 delivery possibilities. That number then needs to be multiplied by the number of python versions, which possibly include 2.1, 2.2, 2.3, 2.4, 2.5, 2.6 and coming up.. the 3 series... So that could be (60,000 x 7 (python versions)) 420,000 variations of known python packages. To date... the testing has been done... we have to assume... manually with some automation. But we can't expect package maintainers to be forever testing their own code on platforms that they simply don't have access to. A more reasonable and cost effective option is to have this testing done on a server farm virtual environment building infrastructure. In simple terms, we need to build all the packages that exist for Python on a daily basis on all of the environments and report any issues back to the registered maintainers. This job is too big to be done manually. We need to use either a Super-Computer or a Server Farm. Fortunately, Server Farms are close at hand. = Server Farm Virtual Environments = Google and Amazon web services are two organisations amongst others that offer commercial virtual server farms that could be employed to do the above build process of all the python packages. Python scripts would be developed utilising the python "test" frameworks to supervise the build on each and every platform. With this basic structure, a daily building/testing infrastructure working across the different versions of python and operating systems, could easily become a reality. At present AWS offer virtual environments for both Windows and Linux. These can be seen on these links: * http://developer.amazonwebservices.com/connect/kbcategory.jspa?categoryID=209 * http://developer.amazonwebservices.com/connect/kbcategory.jspa?categoryID=208 A service to do building on Mac Virtual Machines needs to be located. = Test Scripts = A test script will be developed that will cycle through all the packages on pypi, download the package and build it on all available platforms. The results of the build can then be made available via some sort of web delivery system. Describing on which platforms the builds were successful and not. In the past, it has been difficult for developers to test on all platforms. These facilities are bound to improve overal code quality across the python universe. = Scope of Testing = It's important to define what and can be and what cannot be tested. The scope of the framework will be: * to check that each package can be installed on all the relevant platforms using the setup.py script * to run the built in tests within the package * to check that the package can be de-installed on the relevant platforms -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
On Wed, 22 Apr 2009 16:39:05 -0700, Daniel Fetchinson wrote: > Have a look at http://www.snakebite.org/ Interesring... -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
Hi Daniel, On Wed, 22 Apr 2009 16:39:05 -0700, Daniel Fetchinson wrote: > Have a look at http://www.snakebite.org/ I'm not clear... - are you saying they already test all the packages on pypi? - are they doing it in a one off manner? Pardon me asking but it raised more questions than it answered... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
Hi David, Yes, I agree... But as an end-application-developer, I would put it to you that it is a lot of effort for developers to humanly contact the package developers every time we end-developers find a bug. The task (for us developers) involves: * finding the project page for the project... * finding their tracking system.. * sometimes finding the project is abandoned * entering the bug * waiting a few days Given that Python 3 is now on its way It strikes me that are a lot of packages that are about to break. What I am talking about (regression testing) already exists in the Perl world.. So I am hoping to have at least the same in the Python Universe It seems to me that from your perspective there would be no change? just bug reports coming sooner, rather than later. David On Wed, 22 Apr 2009 22:13:54 -0400, David Stanek wrote: > On Wed, Apr 22, 2009 at 7:06 PM, David Lyon > wrote: >> >> One of the big challenges for Python going forward is providing a > testing >> infrastructure for Python Packages. >> >> There are now over 6,000 packages listed on PyPi - and this number can > only >> get bigger. >> > > Interesting ideas, but I'm not sure I see the value. As a package > developer I publish eggs for various Py thon versions and a source > package. In some of my newer stuff I have been thinking of using 2.6+ > features, which means I don't care if it runs on any other version. > > I've been fine so far in relying on my code running the same on all > platforms. I don't use any of the platform specific modules, but if I > did as a package developer I can just say "too bad -you need Linux". I > have been bitten a few times by hardcoding '/' instead of os.path.sep, > but I get a bug report and make a fix. So far no big deal. > > I think that if you do this or snakebite gets up and running then > projects should opt in to platform/Python versions. > > -- > David > blog: http://www.traceback.org > twitter: http://twitter.com/dstanek -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
Hi Steven, You make some good points... Let me try to answer them.. > Why is it the responsibility of the Python language to provide such a > testing infrastructure? First define "Python language". Ok... we know it as the core interpretor. But to the developer it is also all the packages that everybody has contributed. The "Python language" is the interpretor and all the packages the "community" has put together. > Why? Why should every package on PyPI need to support all those Python > versions? That should be the decision of the package maintainer. If they > want to support every version of Python back to 1.0, they can, and if > they want to only support version 2.5 that's fine too. Why shouldn't packages support more than one python version? Looking at it conversely Why should the package developer dictacte which python version the package will run on ? > For all we know, three quarters of the > packages on PyPI have never been tested *at all*. Right. Why not run some tests > What's the dire problem you are trying to > solve? Backward and forward compatability of python package resources. > What "Super-Computers" do you know of that run Python? Google. Amazon web services.. > Who is paying for this? >From as little as $30 per month. Funding isn't so much the issue. >> With this basic structure, a daily building/testing infrastructure >> working across the different versions of python and operating systems, >> could easily become a reality. > > Oh yeah, "easily". pypi_packagelist = getallpypipackages() for package in pypi_packagelist: testpackageonallplatforms(package) Best Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
Hi Steve, >> Why should the package developer dictacte which python version the >> package will run on ? > > Because they're the developer. Who else should decide what Python > versions to support? The developer shouldn't be making such decisions at all What hardware or operating systems we run his/her programs on is up to the real world to decide. If you think about it logically... why are we even asking our developers to even "build" their packages for specific python versions in the first place? They should just: * submit code * The code gets built * Somewhere the packages are made (eg pypi)... * Downloaded... used * bug reports come in... * fix the code... There's no logical reason for developers to take on so much extra work if you think about it... Python is an interpreted language... It's all about source code... > What are you going to do, hold a gun to their head > and force them to support Python 2.1 when they've written it using 2.6 > features? No. Definitely not. Just file a bug request > What's the *problem* that you are trying to solve? What bad thing will > happen if we don't build your proposed system? I will never get to drive a supercomputer >> Google. Amazon web services.. > > They're not super computers. They're distributed networks of "regular" > computers. But they're pretty fast... > Whether it is a month or ,000 a month, who do you expect to pay it? Oh please It ain't that hard finding >> pypi_packagelist = getallpypipackages() >> >> for package in pypi_packagelist: >> testpackageonallplatforms(package) > > > You don't have either getallpypipackages() or > testpackageonallplatforms(), so this is just Py in the Sky (pun intended) > fantasizing. But okay, for the sake of the argument, let's pretend you > have your cluster, and your test suite. You run the test, and get a list > of 18,000 errors (that's an average of three errors per package). Now > what? File them as bug reports David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
On Thu, 23 Apr 2009 07:04:35 -0400, David Stanek wrote: > If I use win32com how do you expect me to support Linux? Of course not... > What about the many packages on PYPI containing C? Exactly. > What if I decide to write only to Python 3? Fair enough. But don't forget it is open source. Let me ask these two questions... - What about the use case where somebody likes the code and wants to use it on Python 2.5? - Should not that user be able to share back with other Python 2.5 users? > Who will support the other platforms if not the developer? It's Open Source don't forget Fact is these days.. developers come and go If anything my suggestion promotes preserving the resources of the original developer rather than letting them expire just because their operating system does (I'm talking windows here) David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Packages : A looming problem? packages might no longer work? (well not on your platform or python version anyway)
On Thu, 23 Apr 2009 14:02:19 -0700, norseman wrote: > If you think I'm somehow able to take a look at a plain piece of code > you posted yesterday and know that it was written 26 years ago on a CP/M > 2.0 dual HD DS 8" floppy drive system using Microsoft Assembly for the > Z80 chip, intended as a generic print driver for the IBM Seletric > converted to operate with computers of the day - you have an unrealistic > esteem of my abilities. Funny :-) A build test under the last 5 significant versions of python interpretors would probably pick up the fact that it is dead code hello: mov bh,25 mov ah,bh you had cp/m version 2? - wow We're all ok... as far as we know David -- http://mail.python.org/mailman/listinfo/python-list
Re: How to import modules from specific Python installation?
On Sun, 26 Apr 2009 13:07:24 -0700 (PDT), kk wrote: > I know there is a way to import from different Python installation but > I could not find the answer. I have Python 2.6 and 2.5 You can probably achieve this by adjusting the pythonpath to search through the site-packages directory of the other installation. David -- http://mail.python.org/mailman/listinfo/python-list
Re: getting linux distro used...
perphaps platform.uname()? On Sun, 26 Apr 2009 22:35:29 -0700 (PDT), deostroll wrote: > Hi, > > I just found that you could use platform.system() to get the > underlying os used. But is there a way to get the distro used...? > > --deostroll > -- > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: screen scraping with Python?
On Mon, 27 Apr 2009 12:28:31 +0530, "Meenakshi, Arun Kumar" wrote: > Hi Friends, > > Please let me know whether VT100 (Screen scrapping) > emulation is possible or not. If screen scrapping / VT100 emulation is > possible, please let me know how to do it. I will be happier, if you can > provide me steps and sample codes. I am a beginner in python. So kindly > help me by letting me know about the possibilities. EXPECTING THE REPLY > MAIL Thanks Of course... VT-100 terminals were usually rs-232 devices connected at 9600 baud If you can write some python code talking to the serial port, you can easily read the data from the port... render it... and do whatever you need... If you are doing it over a network then you are using a terminal emulator. Many of the top name termninal emulators provide a programming api. If not.. go open source There are just many.. many different ways these days... depending on what platform and which terminal emulator you are using... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Web based application development using python
On Tue, 28 Apr 2009 04:50:13 -0700 (PDT), Rahul wrote: > but i want to know which is the official standard recommended by > python. but there isn't one... All of the frameworks are slightly different and solve different problems. It is for you to work out which one suites you best... -- http://mail.python.org/mailman/listinfo/python-list
Re: Third Party Modules
> On Tue, 28 Apr 2009 10:15:23 -0700, John Nagle wrote: >> Brock wrote: >>> Hi Everyone, >>> >>> I know this is most likely a basic question and you will roll your >>> eyes, but I am just starting out with Python (hobbyist) and I see many >>> tutorials on the web referring to the use of external modules. > ... > >> There are several different mechanism for handling this, and they > all suck. >> The whole Python module distribution scheme is so uncoordinated that > there's >> no uniform way to do this. It's not your fault. > ... >> I'm not going to put Python software out for public use again. I > don't >> have the time to deal with this crap. People are working on this for example, I am working on a Package Manager Project on sourceforge to solve exactly these problems. Hopefully soon we will be ready to do a release. In the spirit of open source, you would be welcome to join our project, and do some testing. Report some bugs etc. http://sourceforge.net/projects/pythonpkgmgr/ Best Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: local module-docs server on Linux?
Hi Soumen, You could try running the Python Package Manager that we are developing on sourceforge. There isn't a release yet but we have implemented two buttons inside the program for 'Examples' and 'Documentation'. What they do is go off and find any documentation files or example directories for third party modules that are installed on the system. Then, if found, they will open a web browser on any documentation or examples directories. In the spirit of open source you could give it a try svn co https://pythonpkgmgr.svn.sourceforge.net/svnroot/pythonpkgmgr pythonpkgmgr Any feedback is welcome.. David On Tue, 5 May 2009 08:00:13 +0530, Soumen banerjee wrote: > Hello, > I had used python on windows and one of the features i liked best was > that you could start a module-docs server and then use firefox to > access it. This would show module-docs for all modules you had > installed(including any 3rd party installs) . How do i do this on > linux? > regards > Soumen > -- > http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Unable to install Pywin32 for Python 2.6.2
On Tue, 12 May 2009 02:22:56 GMT, David Lees wrote: > I have no problem installing Python 2.6.2 for windows under XP SP3 and > IDLE and the command line versions work fine. When I run the pywin32 > installer downloaded from sourceforge (pywin32-212.win32-py2.6.exe) I > get the following error message: > > Traceback (most recent call last): >File "", line 565, in >File "", line 291, in install > ImportError: Module use of python25.dll conflicts with this version of > Python. > *** run_installscript: internal error 0x *** > > I have tried uninstalling Python 2.6 and reinstalling, but still get the > same message. I do have Python 2.5.4 and its associated Pywin32 on the > same machine, but I have a laptop with pywin32 installed for both python > 2.5 and 2.6. > > TIA > > David Lees -- http://mail.python.org/mailman/listinfo/python-list
Re: Unable to install Pywin32 for Python 2.6.2
Hi, hmmm... that's annoying.. Whilst I don't have an exact answer I have a few hunches... Perphaps what has happened is that the windows installer between the versions of pywin32 has installed newer versions of the same dlls over the top of older ones. Or, possibly, the installer hasn't wanted to replace older dll's because they already exist on the system. This would result in a mismatch. You may be lucky and find an install log. This might tell you which files were actually installed. And you could play around with moving them around. Good luck with your night vision task David On Tue, 12 May 2009 02:22:56 GMT, David Lees wrote: > I have no problem installing Python 2.6.2 for windows under XP SP3 and > IDLE and the command line versions work fine. When I run the pywin32 > installer downloaded from sourceforge (pywin32-212.win32-py2.6.exe) I > get the following error message: > > Traceback (most recent call last): >File "", line 565, in >File "", line 291, in install > ImportError: Module use of python25.dll conflicts with this version of > Python. > *** run_installscript: internal error 0x *** > > I have tried uninstalling Python 2.6 and reinstalling, but still get the > same message. I do have Python 2.5.4 and its associated Pywin32 on the > same machine, but I have a laptop with pywin32 installed for both python > 2.5 and 2.6. > > TIA > > David Lees -- http://mail.python.org/mailman/listinfo/python-list
Fwd: Re: Unable to install Pywin32 for Python 2.6.2
Hi, hmmm... that's annoying.. Whilst I don't have an exact answer I have a few hunches... Perphaps what has happened is that the windows installer between the versions of pywin32 has installed newer versions of the same dlls over the top of older ones. Or, possibly, the installer hasn't wanted to replace older dll's because they already exist on the system. This would result in a mismatch. You may be lucky and find an install log. This might tell you which files were actually installed. And you could play around with moving them around. Good luck with your night vision task David On Tue, 12 May 2009 02:22:56 GMT, David Lees wrote: > I have no problem installing Python 2.6.2 for windows under XP SP3 and > IDLE and the command line versions work fine. When I run the pywin32 > installer downloaded from sourceforge (pywin32-212.win32-py2.6.exe) I > get the following error message: > > Traceback (most recent call last): >File "", line 565, in >File "", line 291, in install > ImportError: Module use of python25.dll conflicts with this version of > Python. > *** run_installscript: internal error 0x *** > > I have tried uninstalling Python 2.6 and reinstalling, but still get the > same message. I do have Python 2.5.4 and its associated Pywin32 on the > same machine, but I have a laptop with pywin32 installed for both python > 2.5 and 2.6. > > TIA > > David Lees -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: Re: Unable to install Pywin32 for Python 2.6.2
On Tue, 12 May 2009 23:57:48 GMT, David Lees > Mark and David, > > Thanks for the help. I just got it to install for Python 2.6. All I > did was change PYTHONPATH (as suggested by Mark) from > C:\Python25\Lib\site-packages to C:\Python26\Lib\site-packages lol - so simple... Thankfully, we got a quick answer by the package writing master himself.. but imho - package installation shouldn't be that tricky.. it should be click and shoot... which is what i'm working on doing.. I have to say that I don't mind being corrected because I learnt something valuable too... David -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe + win32com + DAO
Maybe VB is opening the table in Exclusive mode... then when you are opening it as a subprocess, it's already locked. It's possible the win32com module is not giving you a very descriptive error message. Try running your process while vb is running at the same time with the database open and if you get the same error then it might confirm my assertion. Otherwise it is likely that it is something else. On Tue, 12 May 2009 17:20:15 -0700 (PDT), Trevor wrote: > I have a Python code module that adds records to a MS Access > database. The following line of code executes successfully when the > code module is run as a Python script: > > daoEngine = win32com.client.Dispatch(r'DAO.DBEngine.36') > > It also runs successfully when the Python script is compiled and run > as an executable using the Py2exe utility. However, when the compiled > executable is called from VBA using the win32 CreateProcess function, > the preceding code produces this output: > > !!python/name:pywintypes.com_error '' > > What is causing this error? -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: Re: Unable to install Pywin32 for Python 2.6.2
On Wed, 13 May 2009 05:32:16 +0200, "Martin v. Löwis" wrote: > I think this was a case of obscure misconfiguration of the system. > It is always possible to configure a system in such a way that even > the most resilient installation procedure will break. Technically, you are right.. but imho.. windows installers are overkill and shouldn't be used for this sort of thing. That is, installing libraries. And not the fault of the package authors either... if we could clean up the python universe and ensure all packages are in either .egg or distutils packages then i think it would be a nicer place... Take care David -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe + win32com + DAO
On Tue, 12 May 2009 22:06:42 -0700 (PDT), Trevor wrote: > I do not believe your assertion applies to the following line of code: > > daoEngine = win32com.client.Dispatch(r'DAO.DBEngine.36') It doesn't. I'm simply suggesting that it is possible you are opening the database in Access or something in Administrator/dba mode. That could be causing an exclusive lock on the database so that no sub task can then open it. i have seen this on old versions of Access. To provide excellent performance, microsoft used to load the whole database into memory if it could. And just operate mostly from there. > is it possible to obtain more > verbose error output from Python modules? The error message in the > original post was generated from: > > print sys.exc_info()[0] possibly but i'm not sure how... David -- http://mail.python.org/mailman/listinfo/python-list
Re: python script as service
On XP, go to Start Menu/All Programs/Accessories/System Tools/Scheduled Tasks Add your program in with the scheduled task wizard... On Wed, 13 May 2009 13:10:25 +0530, prakash jp wrote: > Hi all, > > could any one tell how to run a python script as a scheduled service(say > every one minute). I tried out the windows registration > > method but encountered an error . The error reads: > > "The 'script name' on local Computer started and then stopped. Some > services stop automatically if they have no work to do, for example, the > Performance Logs and Alerts service" > > Regards > Prakash -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: Re: Unable to install Pywin32 for Python 2.6.2
On Wed, 13 May 2009 13:54:49 +0200, Thomas Heller > > Well, if you don't like the windows installer than you can always > install from the sources. Please go ahead and try it out. Thanks for the offer... but aren't python .eggs supposed to remove the need for doing that ? Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: Re: Unable to install Pywin32 for Python 2.6.2
On Thu, 14 May 2009 08:33:12 +1000, Mark Hammond wrote: > But if PYTHONPATH was set incorrectly it really doesn't matter how > Python was installed, it would still fail. The installer didn't set > PYTHONPATH, a human did. Hi Mark, Well I am just trying to write a package manager for python because I felt spoiled on my last platform, perl. When I came to python I found a bit primitive in python under windows in comparison. I felt like starting to write something that might be useful.. I've personally used your packages at work and find them useful. At the same time it is a very interesting learning process about python and how it works.. Best Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: (Windows) Finding out which process has locked a file.
> In message <787d6072-3381-40bd- > af20-8e1a40405...@h23g2000vbc.googlegroups.com>, CinnamonDonkey wrote: > >> I have a script running which occa[s]ionally fails because it is trying >> to delete a file in use by another process. When this happens I want >> it to log which process has the lock. Maybe there is something on sysinternals.com that you can download -- http://mail.python.org/mailman/listinfo/python-list
Re: capture stdout and stderror from within a Windows Service?
On Thu, 14 May 2009 11:16:51 -0500, Grant Edwards wrote:
> On 2009-05-14, Chris Curvey wrote:
>> I'm trying to get this invocation right, and it is escaping me. How
>> can I capture the stdout and stderr if I launch a subprocess using
>> subprocess.check_call()? The twist here is that the call is running
>> from within a Windows service.
>>
>> I've tried:
>>
>> check_call("mycmd.exe", stdout=subprocess.PIPE) [raises an exception
>> "An integer is required"]
>>
>> check_call("mycmd.exe", stdout=file("c:\\temp\\foobar.txt", "w"))
>> [raises an exception "An integer is required"]
In the past, windows services have never been allowed to make any output
to the console or the GDI or get any user input. Rules said they could
send stuff to syslog etc.
All writing can go to logfiles and so forth...
I've never heard of that being allowable
David
--
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Re: .pth in current directory: Why doesn't it work as the documentation says?
On Mon, 18 May 2009 11:49:15 +0200, Philipp Hagemeister wrote: > 1) According to http://docs.python.org/dev/install/, "The most > convenient way is to add a path configuration file to a directory that’s > already on Python’s path, (...). It's true... > 2) Path configuration files have an extension of .pth, (...)" Yes. > 1&2 => 3) A file test.pth with the content "/example/" should result in > sys.path containing "/example/". No. Python, once finding the .pth will process it. > > 4) "" (the current directory) is the first element of my sys.path Not always - but maybe it is. Let's not assume anything. > > 1&4 => 5) The current directory qualifies for "a directory that’s > already on Python’s path," > > 1&3&5 => 6) echo /example/ > test.pth; python -c 'import > sys;print(repr(sys.path))' should contain '/example'. > > > I think I misinterpreted the documentation, but what exactly is wrong here? What are you expecting? and maybe we can tell you why you aren't getting it... David -- http://mail.python.org/mailman/listinfo/python-list
Re: .pth in current directory: Why doesn't it work as the documentation says?
On Mon, 18 May 2009 14:34:33 +0200, Philipp Hagemeister wrote: > Yes, but that processing will add /example/ to sys.path, right? It actually works the other way around. The directories listed in sys.path are scanned for .pth files. You can add packages by listing them inside a .PTH. > I'm expecting .pth files in the current directory to be be processed, > according to docs/install/. Christian Heimes already pointed out this is > not the case; so I'm wondering whether this is a mistake in the > documentation or just my faulty logic. Perphaps you don't understand them yet. .PTH files are for adding run-time packages. May I ask why you are playing with .PTH files? they are a fairly advanced sort of concept for describing where packages are located to the python interpreter. If you are using .PTH files... you should be using "import .." inside your code.. Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: .pth in current directory: Why doesn't it work as the documentation says?
On Mon, 18 May 2009 14:05:50 +0100, Tim Golden wrote: > According to http://docs.python.org/install/index.html and my > own reasonably long experience of them, they're just a way of > getting extra paths into sys.path. Well, fair enough... > The docs referred to above do indeed say "add a path configuration > file to a directory that’s already on Python’s path" but until I > saw Christian H's post just now, I'd never bothered to understand > exactly what the mechanism was: I just stick site.pth into c:\pythonxx > and it works for me. Sure. Only I have been debugging the code lately to try to understand how to do package installation/deinstallation for a python package manager. Perphaps my understunding is simplistic. I think the area of confusion here is the word "directory". I suggest that perphaps the term "package" is more modern. For example, "a .PTH file in a sys.path directory contains links to all the packages available to python" is perphaps is clearer than : "a .PTH file in a sys.path directory contains links to all the directories available to python" Everybody knows your experience goes back a lot further than mine. So you're probably in a much better position to explain it than me. Good - I can go back to my code now... :-) David -- http://mail.python.org/mailman/listinfo/python-list
Re: Package problem
Hi David, I guess paraphrased you are saying "don't touch your packages".. To my point of view, the needs of the developer override the priorities of the O/S house... We should expect "old" packages on our systems from the O/S and have an easier way to update them to whatever we want.. That's why imho, we can benefit with a package manager tool that can do just that. I just don't have anything running on ubuntu just yet - sadly. On Tue, 19 May 2009 13:15:14 +0900, David Cournapeau wrote: > On Tue, May 19, 2009 at 4:52 AM, Sverre wrote: >> I'm using Ubuntu and some of the packages in the repository are too >> old. So I got the thought to remove nearly all packages downloaded >> from the repository and install them with easy_install. Is this a way >> to go without greater problems? > > This is probably the worst way to do it :) > > As a rule, you should never install anything from sources (be it > python packages or anything else) in /usr, which should be considered > as 'owned' by the package. By /usr is owned, I mean that anything > installed with prefix /usr (/usr/lib, /usr/include, etc...) can be > overwritten by the Ubuntu package manager. Unfortunately, by default, > python setup.py install will install in /usr (whereas most sources > packages installed in /usr/local/ if no --prefix is given - that's the > case of any software using autoconf, like python for example). > > You could either install system-wide (for all users) in /usr/local, or > somewhere just for yourself. To handle dependencies, you could use > something like virtualenv for packages using autotools. For > development, a more heavy-weight (but more reliable) method is to use > chroot and other 'jail-like' systems. > > You should avoid building by yourself things which depend on a lot of > C libraries - it quickly becomes unmanageable in my own experience. > For some distributions which have long release periods (e.g. RHEL), > that's a significant problem without any easy solution (I almost > always use a virtual machine in that case if possible). > > cheers, > > David -- http://mail.python.org/mailman/listinfo/python-list
Re: Package problem
On Tue, 19 May 2009 13:53:18 +0900, David Cournapeau wrote: > Given that nobody has managed to solve this problem, I doubt you will > find a solution. It is solved in other languages.. for example perl.. and delphi > If there was a reasonable solution, it would have > already been developed. Maybe we are slower because we like to do things "better" > Trying to fight the OS deployment system is thinking backward IMHO. Fight it ??? I didn't even get a python interpreter with my operating system... So there's no possible way I can be against it... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Package problem
On Tue, 19 May 2009 15:45:42 +0900, David Cournapeau wrote: > There is no simple solution to the following situation: >- install setuptools from ubuntu... When I have a ubuntu system I will try it > But still, the whole > value of ..(python).. is to have a whole set of packages which > are tested together. Updating packages 'randomly' from 3rd party > sources is inherently against this. Well I presume pypi goes a long way to offering this... I've used easy_install a few hundred times manually now and I've noticed some incorrect outcomes. For example, downloading a package marked debian into my windows system... and wondering why it didn't work for most packages... it seems to work quite well though.. I think the issue is really that if we can do tests and count test results.. we'll probably get a lot further than we have in the past. We seem to be at the 85% mark... next stop should be 95% or at least some known and measurable number... I'm fully agreeing it can get better... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Package problem
On Wed, 20 May 2009 00:40:28 +0900, David Cournapeau wrote: > The discussion has nothing to do with setuptools, or even python for > that matter. It has everything to do with python > on any system (including windows). That's why you should avoid > installing from sources into the locations managed by the OS, be it > /usr for unix, or C:\Windows on windows, etc... I actually kind of agree with what you're saying here. Under Linux it seems to me that users shouldn't be playing around in the bowels of /usr/ or anything lower... but site-packages is the directory that one would want to keep python packages in. That should be a developer/sysop area and not owned and run by the o/s. maybe... maybe... although too late now (?) somewhere like /etc/site-packages might be a lot better place to keep ones site packages. Or /opt. Under windows in python 2.6, they have this concept of user-packages. One could easily also apply that concept to linux and have a /home/user/.user-packages directory in which one could keep all ones user packages. > The problem is that overwriting files managed by the > software management system without its consent is bound to be broken, Something like what I describe above would totally satisfy linux system organisation requirements. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Package problem
On Tue, 19 May 2009 13:29:47 +0100, "A. Cavallo" wrote: > You could try: > > http://download.opensuse.org/repositories/home:/cavallo71:/python-opt/ > > This is a python interpreter installed under /opt/opt-python-2.7a0. > All you have to do is sourcing /opt/opt-python-2.7a0/opt-python-env.sh > from a shell and start using the python 2.7 (it's directly from the svn > trunk). > > If you download a python module to generate the rpm for it all you have to > do > is: > $> . /opt/opt-python-2.7a0/opt-python-env.sh > $> python setup.py bdist_rpm > > It will generate a package rpm installable under /opt/python-2.7a0 and > won't > interfere with the system. I'm fascinated by this and want to try... The above just gave me an ftp link? Can you explain again how to do it? -- http://mail.python.org/mailman/listinfo/python-list
Re: dbfpy - cannot store new record
Hi,
Try not opening the file in append mode (no "a+")
Inside the logic, there is already a seek to the end of the file
and the record counters at the start of the file need updating
too.
Regards
David
On Thu, 21 May 2009 13:25:04 +0200, Laszlo Nagy
wrote:
> Given this example program:
>
> import dbfpy
> def dbf_open(tblname):
> fpath = os.path.join(local.DB_DIR,tblname)
> f = file(fpath,"ab+")
> f.seek(0)
> tbl = dbf.Dbf(f)
> return tbl
>
> tbl = dbf_open("partners.dbf")
> rec = tbl.newRecord()
> rec["FIELDNAME1"] = 1
> rec["FIELDNAME2"] = "Somebody"
> rec.store()
> tbl.close()
>
> I get no exception, no error etc. But the new record is NOT appended to
> the table. What is wrong here?
>
> Thanks,
>
>Laszlo
--
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Re: dbfpy - cannot store new record
well, dbfpy isn't super sophisticated. If you make your own code fixes, maybe you can provide them back to the package author. On Thu, 21 May 2009 17:53:38 +0200, Laszlo Nagy wrote: > Here is the next problem. For boolean/logical fields, I can set their > value to True/False easily. However, setting NULL seems impossible: > > rec = tbl.newRecord() > rec["SOMEFIELD1"] = True # Works fine > rec["SOMEFIELD2"] = False # Works fine > rec["SOMEFIELD3"] = None # Will store False > rec["SOMEFIELD3"] = 0 # Will store False > rec["SOMEFIELD3"] = "" # Will store False > rec["SOMEFIELD3"] = chr(32) # Will store False > rec["SOMEFIELD3"] = chr(0) # Will store False > rec.store() > > Strange thing: if I do not set the value of a numeric field, it becomes > NULL. The same thing I cannot do for logical fields: if I do not set the > value of a logical field, it becomes an invalid value, denoted with a > question mark. > > Any ideas? > > Thanks, > >Laszlo -- http://mail.python.org/mailman/listinfo/python-list
Re: dbfpy - cannot store new record
On Fri, 22 May 2009 08:34:17 +0200, Laszlo Nagy wrote: > Now I also tried to set -1. In any of the above cases, if I open that > dbf file with a commercial DBF editor application then I see that the > value is not null. > > - Borland Database Desktop shows "False" value > - CDBF shows an invalid value, noted with a question mark (screenshot > attached) dbfpy is very old code. Try setting up a CHAR(1) field and filling it with "Y" or "N" or "T" or "F".. indicating yes,no,true or false... This might be an easier solution... otherwise... just debug the dbfpy code... David -- http://mail.python.org/mailman/listinfo/python-list
Re: html ui + py background? any tut?
Hi, I don't know any tutorial either... At work, we have made gui apps using wxpython to make the gui... wxpython has html viewer component... you can use Cheetah or another template engine to make the html... It's pretty easy and effective... David On Sat, 23 May 2009 15:48:38 +0800, oyster wrote: > I have read for many times that the modern appliaction (not a web one, > but desktop on) uses html + js for its UI, and python code is for the > background work > but I have never found event a simple (yet completed) article on how > to develop such a thing from scrach in these advocacy thing. > > Can anyone point out some simple, can-be-followed tutorial on such > thing especially for windows os? > > thanx -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get rid of pyc files ?
On Sun, 24 May 2009 15:01:51 +0200, Stef Mientki wrote: > hello, > > Moving my entire program section between windows and Ubuntu, > sometimes causes problems, due to the existence of pyc-files > (and probably because my program still has hard coded paths). > > Is there a way to prevent generating pyc-files ? > Or is there a way to redirect the generated pyc-files to a dedicated > location ? Yes.. I see your problem... try something else linking the files in linux... Try this: - create a windows "run-directory" as in 'mkdir win-run' - create symbolic link in the win-run directory for each script - 'cd win-run' - 'ln -s /home/user/mypythondir/hello.py hello.py' - for every source file... Now you'll be able to run both... Under windows the .pyc files will be created in the win-run directory and under linux in /home/user/mypythondir David -- http://mail.python.org/mailman/listinfo/python-list
Re: Compile python extensions under windows/cygwin
On Sun, 24 May 2009 15:34:42 -0700 (PDT), Joana wrote: > I mantain Python on Windows, all installed packages are under c: > \Python25\Lib\site-packages. Now I have to build C libraries used by > python extensions and I am using cygwin, but I don't know how to > install the module in Windows directory. > > Can anyone help me? I think it is a problem because as far as I know cygwin cannot see files outside of /cygwin. Where is python installed in cygwin? Can't you install the same packages into cygwin? and then do your building in there...? David -- http://mail.python.org/mailman/listinfo/python-list
Re: SendMessage question
you might have more luck with http://pypi.python.org/pypi/SendKeys/0.3 On Sat, 23 May 2009 08:58:14 +0800, zhouhaifeng wrote: > Hi,I want to send "ctrl + A" and "ctrl + C" to a window, > but my code can not work, who can help me ? > > Thanks a lot! > > hWnd = win32gui.FindWindow(None, "“pad") > print hWnd > if hWnd <> 0: > point = (555, 175) > x, y = point > win32api.SetCursorPos(point) > > win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN,x, y, 0, 0) > win32api.SetCursorPos(point) > win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP, x, y, 0, 0) > > #ctrl + A > win32api.SendMessage(hWnd, 0, win32con.VK_CONTROL, 0) > win32api.Sleep(10) > win32api.SendMessage(hWnd, 0, 65, 0) > win32api.SendMessage(hWnd, win32con.KEYEVENTF_KEYUP, 65, 0) > win32api.SendMessage(hWnd, win32con.KEYEVENTF_KEYUP, win32con.VK_CONTROL, > 0) > win32api.Sleep(10) > > #ctrl + C > win32api.SendMessage(hWnd, win32con.WM_KEYDOWN, win32con.VK_CONTROL, 0) > win32api.Sleep(10) > win32api.SendMessage(hWnd, win32con.WM_KEYDOWN, 67, 0) > win32api.SendMessage(hWnd, win32con.WM_KEYUP, 67, 0) > win32api.SendMessage(hWnd, win32con.WM_KEYUP, win32con.VK_CONTROL, 0) > win32api.Sleep(10) -- http://mail.python.org/mailman/listinfo/python-list
Re: how to get the path of a module (myself) ?
On Mon, 01 Jun 2009 23:28:16 +0200, Stef Mientki wrote: > hello, > > I've pictures stored in a path relative to my python source code. > To get a picture, I need to know what path I'm on in each python module. > I thought __file__ would do the job, > but apparently I didn't read the documentation carefully enough, > because file is the path to the module that called my module. > > Any ways to get the path of "myself" ? This ain't the official way... but the hackers way. Check site.path (import site)... If your module got loaded, and it's own succinct directory or .egg, then it will have been added to site.path. You might have to parse the values in site.path but we're only talking a few lines of code because you already know the package name. If not, there's another way through pkg_utils... Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python embedding question.
Thomas Troeger wrote: I want to embed a Python application on a device with limited resources, esp. storage limitations. Is there a way to reduce the Python interpreter to a set of modules that's urgently needed? Of course there is. What is the target platform ? What can be done is to go through the python source code and comment out everything that *you* find unneccessary. I can't tell you what this would be - because I don't know exactly what you are after. But to your question - the answer is yes.. of course. Or is there a method to have gzipped modules that are unzipped on the fly into memory when they're accessed? That would be even better. Yes - also possible. Additionally, is there a Python module that contains all the stuff needed for an embedded application like graphics, sound etc. No. Because that depends on what hardware platform you want to run on. or do I have to use the various bindings to libraries like cairo, Qt or similar? Is there a site that helps with those decisions? I doubt it. These are decisions for you to make according to the limitations of your hardware. I've really looked at a lot of places but haven't found a suitable solutions yet, so I'm asking here in hope that someone has experience with that topic. :-) Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Using McMillan Installer, PyInstall or py2exe cross-platform?
Hi Hartmut, I can sympathise with you on this one... There are a few options... there is a python based "bake" make like program... that is useful... http://projects.bertram-scharpf.de/bake/bake1.html then there is Wine... that is a windows emulator under linux... that might be pretty easy http://www.winehq.org/ If you want to get more heavy-weight, then get a virtual machine. But as per your question... the above specified options might satisfy your requests for speed and ease of use without having to change O/S. Regards David Hartmut Goebel wrote: Hi, has anybody used McMillan Installer, PyInstall or py2exe cross-platform? I have a Windows partition with Python installed there, so this would "only" required working on a different directory and for a different OS. Since I'm working on Linux, it's awful to boot Windows each time I want to build a new release. Any hint in this area? -- http://mail.python.org/mailman/listinfo/python-list
Re: AW: Python embedding question.
Troeger, Thomas (ext) wrote: Thanks for your answer. The plattform is x86, so basically it's a PC with a compact flash drive. The problem is that the compact flash is rather limited in speed and size (there is other stuff on it too). Oh ok. Well just keep in mind that 4GB of flash memory can be bought in China for about 5 euros. Since programming time is pretty expensive you need to do your sums about where you want to spend the time/money. Or is there a method to have gzipped modules that are unzipped on the fly into memory when they're accessed? That would be even better. Yes - also possible. That sounds promising, is there a link you can give? Or do I have to modify the module loading code for this, i.e. the interpreter? http://squashfs.sourceforge.net/ I think that wouldn't be too much of a problem if I understand where Python loads modules; I haven't checked the Python source yet for that one, and searching for Python and zip or similar always yields tons of links that use the Python zip or tar module :) Python modules are byte compiled. You can usually cut out a lot/some of space by removing the source (.py) and leaving the compile (.pyc) modules. There is usually a lib or a sitelib directory. You could try cleaning that out of unwanted modules. My advice would be to simply buy higher capacity flash memory Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Rotating a cube
Lie wrote: On Jul 17, 3:11 pm, J-Burns <[EMAIL PROTECTED]> wrote: On Jul 17, 12:53 pm, Fredrik Lundh <[EMAIL PROTECTED]> wrote: J-Burns wrote: Is there a built in Python function for this? for answering questions that have nothing to do with programming, and looks quite a bit like homework? don't think they've added that one yet. maybe you should look for a geometry newsgroup/forum? I meant to ask how would you do this in Python... :S The same as you do it in any other languages. This question is marked correctly as having no relationship to python whatsoever. You'd get a better answer if you asked in mathematics/geometry group, many mathematician are adept programmer as well. - But is the question about display graphics ? ie rotating a cube using a python framework ? With something like python and OpenGL ? or Python and PovRay... or perphaps python and imagemagick ? If so... i would have thought he should be able to ask that question here David -- http://mail.python.org/mailman/listinfo/python-list
Help with displaying images in CherryPy
Hi all, I have a very simple question about configuration under CherryPy - it is such a simple one but I have been struggling to find an answer for a few days. All I want is a sample configuration file that will allow me to display a page with a jpeg on it. Whilst there are some examples in the CherryPy examples, they are mixed with so many other concepts that it is difficult for me (a newbie) to figure it out. None actually show me where to put image files. This really should only take a few minutes for somebody who has done this in CherryPy before and I would certainly appreciate the assistance because it doesn't seem covered in any documentation that i could find. Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python web framework choice
Quoting Mahdi <[EMAIL PROTECTED]>: I need to develop a medium-sized database web application for my company. Given that: I don't know much about building web UI(s) but i have fair knowledge about HTML & My schedule is tight. a recommendation is v v v appreciated. I'm in the same boat a few weeks in. I've found that most of the python frameworks are based on the python cherrypy server. Thats a good place to work out how the webserver part of the non-zope systems work. ie django etc So that is the webserver part then you need to build your webpages I have found Cheetah which is pretty powerful... that is a templating system to build the actual pages from the database content... that works nicely... obviously django and pylons wrap all these basics into a 'product'... so it depends if you want to learn all the basic pieces (CherryPy/Cheetah)... or jump straight into the high level stuff straight away (pylons/django)... depends how much money your boss is throwing your way i guess David -- http://mail.python.org/mailman/listinfo/python-list
Re: Web shopping carts
Quoting Luke Hamilton <[EMAIL PROTECTED]>: I am wondering if there are any OS shopping cart application written in python? Hi Luke, I'm sure there are a few. But recently I have been asked by two customers to provide a solution. So I'm thinking about the same thing. Actually, I've looked at a few systems like OS-commerce and so forth and my impression is that they are a bit old fashioned. As in, the web has moved a bit on since these projects started. Plus, I have customers in the computer industry, whose requirements are a bit different than the generalist cart programs. They want to pull prices in from spreadsheets and have price auto-calculations etc Basically, what I have put some work into has a search screen a bit like a search engine, and tries to combine leading edge javascript effects with a CherryPy/Cheetah back end. There's also some fantastic javascript slideshows out there.. I was never excited about what web systems could do until now javascript effects are just plain amazing... and what better to drive it than a python back end Let me know what you think... -- http://mail.python.org/mailman/listinfo/python-list
Re: Live Video Capture using Python
Also try.. http://www.unixuser.org/~euske/python/vnc2flv/index.html On Mon, 21 Dec 2009 11:15:32 +0530, Banibrata Dutta wrote: > Have you searched the archives of this list ? I remember seeing a related > discussion 5-6 months back. > > On Mon, Dec 21, 2009 at 2:35 AM, aditya shukla > wrote: > >> Hello Guys, >> >> I am trying to capture images from a live broadcast of a "cricket match" >> or >> say any video using python. I can see the video in the browser.My aim is >> to >> capture the video at any moment and create an images.Searching on google >> turns up http://videocapture.sourceforge.net/ .I am not sure if this >> would be help here.I would appreciate if someone points me in the right >> direction. >> >> >> Thanks >> >> Aditya >> >> -- >> http://mail.python.org/mailman/listinfo/python-list >> >> -- http://mail.python.org/mailman/listinfo/python-list
Re: .pth files and figuring out valid paths..
On Tue, 9 Jun 2009 16:30:06 -0700 (PDT), rh0dium wrote: >> > Apparently there is a problem with the if statement??? >> >> > Thanks > > No for .pth files this needs to be on a single line.. I can't really see why you need conditional code... If you want to add more locations... Simply create another .PTH file. Having multiple paths or multiple .PTH files isn't a problem for python. David -- http://mail.python.org/mailman/listinfo/python-list
Re: .pth files and figuring out valid paths..
On Tue, 9 Jun 2009 21:33:56 -0700 (PDT), rh0dium wrote: >> Having multiple paths or multiple .PTH files isn't a >> problem for python. > .. > We use it for our dev tree before we roll to production. Once dev is > QA'd then we (integrate) those changes to main and release. Makes sense... :-) I was just wondering... -- http://mail.python.org/mailman/listinfo/python-list
Re: Slow wxPyhon on Vista?
On Fri, 19 Jun 2009 10:16:39 +0200, martin.sch...@gmail.com (Martin Schöön) wrote: > Here is my problem. When I use it on a Vista box its > user interface is very, very slow when it comes to > some but not all operations. On any other Windows > version it reacts instantaneously. I have not tried > Task Coach on Linux or Solaris (yet). > > Is this how wxPython or Python works on Vista in > general or is this the result of some local oddity on my > employer's Vista configuration? I have encountered the same thing on XP in one instance on a development box. For some reason, wxpython just grinds to a halt. I couldn't solve it and reimaged the O/S... that fixed it... David -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE / Python 2.5 under Jaunty
On Wed, 24 Jun 2009 00:55:14 +0100, duncan smith wrote: > Does anyone know how I can configure Boa to use wxPython 2.8.9.1? Does > anyone know if it's possible to configure the Python version under SPE? It definitely is possible. In fact you need to use wxpython 2.8 with Boa. I had a similar problem under some ubuntu version. You can install 2.6 and 2.8 wxpython. But from memory there is a wxversion ubuntu package also. I had to do some "force"ing as there seemed to be circular dependencies. In the end I got it to work just fine... David -- http://mail.python.org/mailman/listinfo/python-list
ANN: Package Manager GUI for Python (Windows)
Hi All, I'm pleased to announce a GUI package manager (v 0.12) for Python versions 2.x under Windows. http://sourceforge.net/projects/pythonpkgmgr/ It's tightly linked to the pypi repository and offers the following functions: - search packages on pypi by name - install (via easyinstall or pip) - deinstall/remove packages - see package documentation - see package examples - install .EGG packages - Generate package manifest If you find any issues, please don't hesitate to report them via our tracker on the project page. Regards David -- http://mail.python.org/mailman/listinfo/python-list
Re: packaging apps
On Tue, 30 Jun 2009 11:11:15 -0400, Ronn Ross wrote: > I have a simple application that has a glade file and a .py file. How would > I package that into an installer for Windows, Mac, and a deb file? Can > anyone point me in the right direction? I don't think there is a simple way to do that just yet... Of course, you could make a source distribution and do it for each of these platforms using the documentation available at: http://docs.python.org/distutils/ I'm struggling with that myself.. I can never remember command lines.. So maybe it is time that I try to throw together a tool a little bit like the package manager except that it does the building.. for all those platforms... I think it's time for distutils to have some sort of gui build tool... and I've been talking about it for too long now... haha David -- http://mail.python.org/mailman/listinfo/python-list
Re: System default sys.path
On Wed, 01 Jul 2009 19:48:04 -0700, Brock Pytlik wrote: > Hi, I'm trying to find a way to get the value sys.path would have on a > particular system if python was started with an empty python path. I do > want it to include the site specific additional paths. I know I can hack > this information myself, Copy the code out from site.py... > but I'd rather be able to get this on demand so > that if things change in the future, I don't have grovel around looking > for which directory string to change. for index in range(len(sys.path)): del sys.path[0] site.addsitedir(self.p.python_sitepackages_path) > If nothing else, I think the following would satisfy my needs: > 1) a variable containing the directories to use as a prefix (I think > sys.exec_prefix and sys.prefix are what I want here) > 2) a variable containing the list of suffixes that are applies to the > prefixes, like lib/python/site-packages > 3) a way of handing the *.pth files What way do you want to handle them? -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
On Tue, 07 Jul 2009 02:09:41 +0100, Chris Withers wrote: > I wonder how close setuptools is to being forked because of Phil Eby's > unwillingness to apply patches and/or clean up the horrible setuptools > code? setuptools... as far as I can see isn't actually installed until you install easyinstall... Pip (http://pypi.python.org/pypi/pip) and enstall (http://pypi.python.org/pypi/Enstaller/3.1.0) seem to be forks of setuptools already... So it looks like it's already been forked to some degree.. What hasn't happened is enough testing of pypi packages and installing with setuptools/pip/enstall from pypi. If the xmlrpc links actually "worked" on pypi... http://wiki.python.org/moin/PyPiXmlRpc?action=show&redirect=CheeseShopXmlRpc ie.. that they would allow a developer to download a packages via rpc then this whole issue could probably be fixed more easily... ok - the process isn't perfect... but there's room for improvement... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
On Tue, 07 Jul 2009 09:06:49 +0100, Chris Withers wrote: >> What hasn't happened is enough testing of pypi packages and installing >> with setuptools/pip/enstall from pypi. > > What needs testing? It's software... therefore it needs testing... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Where does setuptools live?
On Tue, 07 Jul 2009 13:07:48 +0100, Chris Withers wrote: What hasn't happened is enough testing of pypi packages and installing with setuptools/pip/enstall from pypi. >>> What needs testing? >> >> It's software... therefore it needs testing... > > Yes, which is why I asked WHAT needs testing? :-) I've written a package manager gui. I think it is orderly to comprehensively ascertain which packages will and won't install from pypi with the tool. I'll run the same install test for pip, easyinstall and enstall. And come up with a preferred installer. Which I will then suggest as the preferred tool. David -- http://mail.python.org/mailman/listinfo/python-list
Re: convert Dbase (.dbf) files to SQLite databases
On Wed, 15 Jul 2009 11:53:28 +0200, Helmut Jarausch wrote: > Hi, > > I have a lot of old Dbase files (.dbf) and I'll like to convert these > to SQLite databases as automatically as possible. > Does anybody know a tool/Python script to do so? > > I know, I could use dbfpy and create the SQLite table and import all > data. But is there something easier? yes... Use OpenOffice-Scalc or MS-Office-Excel to open the table... Export to csv Use SQLite Manager (https://addons.mozilla.org/en-US/firefox/addon/5817) and use the import wizard to import your data It shouldn't take too long... David -- http://mail.python.org/mailman/listinfo/python-list
Re: setuptools question.
On Tue, 21 Jul 2009 11:12:01 -0700, Fred C wrote: > I have a python program and when I install this program from the > module home directory using setup.py everything works fine. > > But easy_install fails with the following error, because I am trying > to install some start up shell scripts into /etc/init.d > > > The package setup script has attempted to modify files on your system > >that are not within the EasyInstall build area, and has been aborted. > > Is there a way to use easy_install to install the start scripts into / > etc/init.d. If not, what is the best way to install these scripts. What package is it? what platform ? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python
On Wed, 22 Jul 2009 07:32:22 +0700, khanh le wrote: > do you have any materials about Python? > can you show me the link of Python or some books? http://www.python.org/ > thanks a lots! No problem. Have a nice day. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using easy_install, reduncant?
On Mon, 27 Jul 2009 09:42:06 -0700 (PDT), ray wrote: > I am working on a Trac installation. I am new to Python. To install > packages, it is suggested to use setuptools. I have not understood > the directions. > > I execute ez_install.py. > > Then I attempt to execute easy_install.py setuptools-0.6c9-py2.6.egg. > There response that setuptools is already the active version in easy- > install.pth. Then: > Installing easy_install.exe script to C:\Python26\Scripts error: C: > \Python26\Scripts\Easy_install.exe: Permission denied. > > I have compared the file entries before and after this attempt and > there are no new files. Is there any problems here? What did I miss? Try using python package manager : http://sourceforge.net/projects/pythonpkgmgr/ You might find it a lot simpler. It will download and install setuptools for you if you are still having problems. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Extract images from PDF files
pdftohtml on sourceforge may help... On Mon, 27 Jul 2009 19:52:01 -0700 (PDT), writeson wrote: > Hi all, > > I've looked around with Google quite a bit, but haven't found anything > like what I'm looking for. Is there a Python library that will extract > images from PDF files? My ultimate goal is to pull the images out, use > the PIL library to reduce the size of the images and rebuild another > PDF file that's an essentially "thumbnail" version of the original PDF > file, smaller in size. > > We've been using imagick to extract the images, but it's difficult to > script and slow to process the input PDF. Can someone suggest > something better? > > Thanks in advance, > Doug -- http://mail.python.org/mailman/listinfo/python-list
Re: Does python have the capability for driver development ?
MalC0de wrote: > hello there, I've a question : > I want to know does python have any capability for using Ring0 and > kernel functions for driver and device development stuff . > if there's such a feature it is very good, and if there something for > this kind that you know please refer me to some reference and show me > some snippet . What operating system are you talking about? Most device drivers run at ring 3 (or lower) and not zero. This way if there is a driver crash the whole operating system doesn't freeze. Python is generally considered a high-level language. If you want to play around with drivers.. usb serial.. etc do it at a python level through the existing device drivers. imho the performance of interpreted python isn't compatible with writing block-mode device drivers (hard-disks) and so forth. What hardware do you have that you need to write a device driver for ? Isn't there a device driver available already? or do you mean just a device controller? David -- http://mail.python.org/mailman/listinfo/python-list
Re: Newbie thwarted by sys.path on Vista
On Sat, 1 Aug 2009 22:58:53 +0100, "Michael M Mason" wrote: > I'm running Python 3.1 on Vista and I can't figure out how to add my own > directory to sys.path. > > The docs suggest that I can either add it to the PYTHONPATH environment > variable or to the PythonPath key in the registry. However, PYTHONPATH > doesn't exist, and updating the registry key has no effect > > So where does sys.path get its value from, and how do I change it? The simplest hack (worst - but most direct) is that sys.path is a list and you can use it like any other list. (add, delete, change items in it) It gets loaded from site.py (in the standardard library) at startup. Anything else you'll have to ask somebody else. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Problem in installing PyGreSQL
On Tue, 4 Aug 2009 09:15:47 +0530, "Thangappan.M" wrote: > I want to access the database related stuffs in python.So I found the > PyGreSQL module in net. > Then I tried to download the module.But I am not able to download it. Did none of the links here work? http://www.pygresql.org/readme.html#where-to-get > I am not a super user. > I am using Linux debian machine > Python version is 2.4.4 Try building it from source. Otherwise try getting it from pypi http://pypi.python.org/pypi/PyGreSQL/ David -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing - group effort to hire writers?
It isn't totally about the writers... Peoples egos are also at stake - it seems. If "Fred X wrote Doc Y".. they don't want their name taken off.. So they generally speaking don't want the docs changed. If you talk too much about docs.. you can be told you're OT.. even in a thread about docs... On Fri, 31 Jul 2009 17:12:43 -0700, Kee Nethery wrote: > I too find the Python docs not very useful and it really slows down my > learning curve. > > I wonder if it would make sense to find good tech writers, get a > quotes, and get some professionally written documentation WITH LOTS OF > EXAMPLES added to the standard Python documentation tree. > > I'd chip in money for that task. I've certainly spent enough buying > Python books to where it would be very reasonable to chip in the cost > of one book towards this project. Get enough people ... could be a > great thing. > > Even though it is not the version I use, I would suggest that the > really detailed docs with lots of examples be written against the > latest python version. > > Just a thought. > > Kee Nethery -- http://mail.python.org/mailman/listinfo/python-list
Re: easy_install: unresolved external symbol
On Tue, 4 Aug 2009 10:52:20 +0200, Bart Smeets wrote: > I could ofcourse use cxfreeze's binary package. But bbfreeze is not > available as a binary. I would love to get easy_install to work. But I have > no idea what's going wrong here. What is going on is that setuptools does some very 'advanced' things. The best you can do is give the option to link to the ez_setup.py install script and let the users install it them themselves... David -- http://mail.python.org/mailman/listinfo/python-list
Re: Social problems of Python doc [was Re: Python docs disappointing]
Since you're talking about documentation, which is a part of python, don't you think you should be discussing it on python-dev ? That's where discussions about the documentation should be held. haha - I'm just curious to see how long it will for them to shut the discussion down. Before you do that, you should clearly work out in your own mind how you think things need to improve. It's not good enough just saying this or that is bad without having specific ideas on what needs to change. Good luck fellow sinner and blasphemer... How dare you suggest that things could be improved... On Sun, 9 Aug 2009 20:04:43 -0700 (PDT), Xah Lee wrote: > The prob with python docs is with the python priests. > > there are frequent posts about python doc's poor quality, and some > efforts to improve the doc (such as wiki or seggestions), about few > times a year (in so much as i've seen), the typical response is > pissing fight, with python priests to tell them not to start another > wiki, or “you should apply in our church first and formulate a PEP > proposal first or kindly donate or otherwise fuckoff”, and so on. > > i've wrote several articles about this issue, total time spend on this > is probably more than 2 months full-time work. See: > > • Python Documentation Problems > http://xahlee.org/perl-python/python_doc_index.html > > just about each article above generates a thread of flames. > > I also have re-wrote the entire python regex doc in 2005: > > • Pyhton Regex Documentation: String Pattern Matching > http://xahlee.org/perl-python/python_re-write/lib/module-re.html > > there are some positive reviews, but most are drawn out by nay-sayers. > > I often receive thank you emails for 2 particular articles, which are > most frequently google searched as indicated by my weblog: > > • Python Doc Problem Example: gzip > http://xahlee.org/perl-python/python_doc_gzip.html > > • Python Doc Problem Example: sort() > http://xahlee.org/perl-python/python_doc_sort.html > > • Sorting in Python and Perl > http://xahlee.org/perl-python/sort_list.html > > See also: > > • Language, Purity, Cult, and Deception > http://xahlee.org/UnixResource_dir/writ/lang_purity_cult_deception.html > > Xah > ∑ http://xahlee.org/ > > ☄ > > On Jul 31, 1:10 pm, kj wrote: >> I'm pretty new to Python, and I like a lot overall, but I find the >> documentation for Python rather poor, overall. >> >> I'm sure that Python experts don't have this problem: they have >> internalized some good ways to access the documentation, are >> productive with it, and therefore have lost the ability to see why >> the Python documentations is deficient for beginners. This explains >> why a suboptimal situation can persist like this: those who are >> most able fix it are also the least able to perceive it. >> >> I've heard similar complaints from other experienced programmers >> who are trying out Python for the first time: poor documentation. >> >> Here is an *entirely typical* example: on some Unix, try >> >> % pydoc urllib >> >> The displayed documentation mention the optional parameter "data" >> in practically every function listed (a few dozen of them). This >> parameter is not documented *anywhere* on that page. All that we >> are told is that its default value is always None. >> >> I'm sure that I can find a full description of this parameter if >> I fire up Google, and search online. In fact, more likely than >> not, I'll find far more documentation than I want. But my point >> is that a programmer should not need to do this. The full >> documentation should be readily accessible directly through a few >> keystrokes. >> >> I would love to know how experienced Python programmers quickly >> zero in on the Python documentation they need. >> >> TIA! >> >> kynn -- http://mail.python.org/mailman/listinfo/python-list
Re: wxpython question
is there a method/property called Show/Shown ? On Mon, 10 Aug 2009 07:55:42 -0700 (PDT), azrael wrote: > Is there maybe a method bounded to the class SpinCtrl() that could > hide the widget. One that is maybe also implemented in any other > control. > > self.spcKvadDo = wx.SpinCtrl(id=-1, initial=0, max=100, min=0, > name='spcKvadDo', parent=self.pnlFilteri, pos=wx.Point(10, 10), > size=wx.Size(118, 21), style=wx.SP_ARROW_KEYS) > > self.spcKvadOd.XXX() > > I tried it with the SetTransparent() method but it did not work. Has > anyone any Idea? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python docs disappointing - group effort to hire writers?
On Mon, 10 Aug 2009 09:13:34 -0700, Ethan Furman wrote: > As someone who relies heavily on the docs I will also say that the idea > of giving the ability to modify the official documentation to somebody > who is /learning/ the language is, quite frankly, terrifying. What is more terrifying is the way feedback from newbies is handled. Your statement implies that the only way feedback can be handled is to throw the keys down in discust and walk away. That's primative behaviour. And misleading, because that isn't going to happen. > My bookshelf currently has Learning Python, Programming > Python, Python Cookbook, Python Programming on Win32, and Regular > Expressions. All great books, and not too pricey if you can get them used. So, what you're advocating is let things stay how they are... Ignore feedback... tell people to freak off... -- http://mail.python.org/mailman/listinfo/python-list
Re: install package in a particular python version
On Thu, 20 Aug 2009 17:57:53 -0700 (PDT), Steve1234 wrote: > I installed the boto module in my Ubuntu system using "python setup.py > install" and it installs in my python2.6 version and works great. Now > I want to install boto into my python2.5 version because my hosting > services supports 2.5 but not 2.6. and I want to test my code locally, > "sting".format() is not in 2.5. > > How do I install a package in a particular version of python? > > I tried several different install switches without any luck. If you wish to do it in a gui rather than at the commandline then you could try the python package manager at : http://sourceforge.net/projects/pythonpkgmgr/ You will need to download it from source. In the Options Dialog, there is a dropdown list that allow you to easily change from one version of python to another. Regards David -- http://mail.python.org/mailman/listinfo/python-list
