MichiPUG October meeting: Python 2.6
Our regularly scheduled MichiPUG meeting is coming on Thursday, October 2nd. The meeting will be at its usual time (7 PM) and at the usual place (SRT Solutions [1]). This month meeting topic is Python 2.6. A few months ago, we discussed Python 3.0 and all the new features that had to offer. It seems to make more sense to focus on Python 2.6, because it's a release that we can likely use sometime soon. Coincidentally, Python 2.6 final is due out tomorrow [2]. So check out what's new in Python 2.6 [3] and come to the meeting with your choices of favorite new features. [1]: http://groups.google.com/group/michipug/web/SRT%20Solutions [2]: http://www.python.org/dev/peps/pep-0361/ [3]: http://docs.python.org/dev/whatsnew/2.6.html -- Kevin Dangoor Product Manager SitePen, Inc. Web development experts: development, support, training [EMAIL PROTECTED] http://www.sitepen.com 650.968.8787 (Timezone: US/Eastern) -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
PyCon 2009 (US) - Call for Tutorials
The period for submitting tutorial proposals for Pycon 2009 (US) is open and will continue through Friday, October 31th. This year features two pre-conference days devoted to tutorials on Wednesday March 25 Thursday March 26 in Chicago. This allows for more classes than ever. Tutorials are 3-hours long on a specific topic of your choice. Last year we featured classes on Learning Python, Web Development, Scientific Computing, and many more. Class size varied from 10 to over 60 students. The extended time spent in class allows teachers to cover a lot of material while allowing for interaction with students. The full Call for Tutorial Proposals, including submission details, an example proposal as well as a template, is available at http://us.pycon.org/2009/tutorials/proposals/. Tutorial selections will be announced in early December to give you time to prepare your class and PyCon will compensate instructors US$1,500 per tutorial. If you have any questions, please contact [EMAIL PROTECTED] Greg Lindstrom Tutorial Coordinator, PyCon 2009 (US) -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Texas Python Regional Unconference Reminders
Greetings, The Texas Python Regional Unconference is coming up this weekend (October 4-5) and I wanted to send out some more details of the meeting. The web page for the meeting is here: http://www.scipy.org/TXUncon2008 The meeting is _absolutely free_, so please add yourself to the Attendees page if you're able to make it. Also, if you're planning to attend, please send me the following information (to [EMAIL PROTECTED] ) so I can request wireless access for you during the meeting: - Full Name - Phone or email - Address - Affiliation There are still opportunities to present your pet projects at the meeting, so feel free to sign up on the presentation schedule here: http://www.scipy.org/TXUncon2008Schedule For those who are in town Friday evening, we're planning to get together for a casual dinner in downtown Austin that night. We'll meet at Enthought offices (http://www.enthought.com/contact/map-directions.php ) and walk to a casual restaurant nearby. Show up as early as 5:30pm and you can hang out and tour the Enthought offices--we'll head out to eat at 7:00pm sharp. Best, Travis -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
ANN: eGenix mxODBC Connect Database Interface for Python 0.9.2 (beta)
ANNOUNCING eGenix.com mxODBC Connect Database Interface for Python Version 0.9.2 (beta) Our new client-server product for connecting Python applications to relational databases - from all major platforms This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-Connect-0.9.2-beta.html INTRODUCTION The mxODBC Connect Database Interface for Python allows users to easily connect Python applications to all major databases on the market today in a highly portable and convenient way. Unlike our mxODBC Python extension, mxODBC Connect is designed as client-server application, so you no longer need to find production quality ODBC drivers for all the platforms you target with your Python application. Instead you use an easy to install Python client library which connects directly to the mxODBC Connect database server over the network. This makes mxODBC Connect the ideal basis for writing cross-platform database programs and utilities in Python, especially if you run applications that need to communicate with databases such as MS SQL Server, Oracle or DB2 that run on Windows or Linux machines. By removing the need to install and configure ODBC drivers on the client side, mxODBC Connect greatly simplifies setup and configuration of database driven client applications, while at the same time making the network communication between client and database server more efficient and more secure. For more information, please have a look at the product page: http://www.egenix.com/products/python/mxODBCConnect/ * About Python: Python is an object-oriented Open Source programming language which runs on all modern platforms (http://www.python.org/). By integrating ease-of-use, clarity in coding, enterprise application connectivity and rapid application design, Python establishes an ideal programming platform for todays IT challenges. * About eGenix: eGenix is a consulting and software product company focused on providing professional quality services and products to Python users and developers (http://www.egenix.com/). NEWS mxODBC Connect 0.9.2 is our second public beta release of the new mxODBC Connect product. It comes with improved documentation, enhanced SQL Server support on Linux and now runs on Python 2.6 as well (in addition to Python 2.3, 2.4 and 2.5). *SPECIAL OFFER* If you would like to participate in the beta as tester, please see our beta program page: http://www.egenix.com/products/python/mxODBCConnect/beta.html In order to make participation in the beta program more interesting for our users, we will be giving out *free discount coupons* to all participants who report back bugs in the product. DOWNLOADS The download archives as well as instructions for installation and configuration of the product can be found on the product page: http://www.egenix.com/products/python/mxODBCConnect/ ___ SUPPORT Commercial support for this product is available from eGenix.com. Please see http://www.egenix.com/services/support/ for details about our support offerings. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Oct 01 2008) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
RELEASED Python 2.6 final
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On behalf of the Python development team and the Python community, I am happy to announce the release of Python 2.6 final. This is the production-ready version of the latest in the Python 2 series. There are many new features and modules, improvements, bug fixes, and other changes in Python 2.6. Please see the What's new page for details http://docs.python.org/dev/whatsnew/2.6.html as well as PEP 361 http://www.python.org/dev/peps/pep-0361/ While Python 2.6 is backward compatible with earlier versions of Python, 2.6 has many tools and features that will help you migrate to Python 3. Wherever possible, Python 3.0 features have been added without affecting existing code. In other cases, the new features can be enabled through the use of __future__ imports and command line switches. Python 3.0 is currently in release candidate and will be available later this year. Both Python 2 and Python 3 will be supported for the foreseeable future. Source tarballs, Windows installers, and Mac disk images can be downloaded from the Python 2.6 page: http://www.python.org/download/releases/2.6/ (Please note that due to quirks in the earth's time zones, the Windows installers will be available shortly.) Bugs can be reported in the Python bug tracker: http://bugs.python.org Enjoy, - -Barry Barry Warsaw [EMAIL PROTECTED] Python 2.6/3.0 Release Manager (on behalf of the entire python-dev team) -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (Darwin) iQCVAwUBSOREJ3EjvBPtnXfVAQLAigP/aEnrdvAqk7wbNQLFbmBonIr2YQbd1vEu TyTr5imYXFWGNfv1/JMeMBjMfwpHi1bgPEDTLEZdhDRNj/G1h4NqqnpfJS0lfIaU 4JBKwnsO80se/RGyupcs5f09UdKxOljhbFKEw46CHDkd9lE+cqy2yhetEwyx3c3+ AVC11sjcO54= =Oxo3 -END PGP SIGNATURE- -- http://mail.python.org/mailman/listinfo/python-announce-list Support the Python Software Foundation: http://www.python.org/psf/donations.html
Re: How to emit UTF-8 from console mode?
LC_CTYPE=en_US.UTF-8 urxvt-X.exe perl -wle binmode STDOUT, q[:utf8]; print chr() for 0x410 .. 0x430; Can someone help me translate it into python? LC_CTYPE=en_US.UTF-8 urxvt-X.exe python -c 'for i in range(0x410, 0x431):print unichr(i),' I would not expect it to work from cmd.exe with python It should work in cmd.exe, as long as the terminal's encoding supports these characters in the first place. Use chcp.exe to find out what the terminal's encoding is. The Python program is not completely equivalent, as it leaves the output encoding to Python, rather than assuming a fixed UTF-8 output encoding. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: How to emit UTF-8 from console mode?
Martin v. Löwis [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] LC_CTYPE=en_US.UTF-8 urxvt-X.exe perl -wle binmode STDOUT, q[:utf8]; print chr() for 0x410 .. 0x430; Can someone help me translate it into python? LC_CTYPE=en_US.UTF-8 urxvt-X.exe python -c 'for i in range(0x410, 0x431):print unichr(i),' I would not expect it to work from cmd.exe with python It should work in cmd.exe, as long as the terminal's encoding supports these characters in the first place. Use chcp.exe to find out what the terminal's encoding is. The Python program is not completely equivalent, as it leaves the output encoding to Python, rather than assuming a fixed UTF-8 output encoding. Regards, Martin Make sure you are using the Lucida Console font for the cmd.exe window and type the commands: chcp 1251 python -c print ''.join(unichr(i) for i in range(0x410,0x431)) Output: АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯа UTF-8 encoding (chcp 65001) doesn't work (Python doesn't recognize it: LookupError: unknown encoding: cp65001) and I couldn't get any Chinese code pages to work either. There is some trick I don't know, because Chinese versions of Windows can display Chinese. I have the East Asian languages installed and Chinese IME enabled, but it doesn't help for console apps. --Mark -- http://mail.python.org/mailman/listinfo/python-list
Re: Python arrays and sting formatting options
On Tue, 30 Sep 2008 23:40:22 +, Steven D'Aprano wrote: On Tue, 30 Sep 2008 14:34:31 +, Marc 'BlackJack' Rintsch wrote: There is no array. The data type is called list in Python, so `result` is a nested list. And in Python it quite unusual to build lists by creating them with the final size filled with place holder objects and then fill the real values in. Instead lists are typically created by appending values to existing lists, using list comprehension or the `list()` function with some iterable object. I would weaken that claim a tad... I'd say it is usual to write something like this: alist = [] for x in some_values: alist.append(something_from_x) but it is not uncommon (at least not in my code) to write something like this equivalent code instead: alist = [None]*len(some_values) for i, x in enumerate(some_values): alist[i] = something_from_x I have never done this, except in the beginning I used Python, and -- maybe more importantly -- I've never seen this in others code. I really looks like a construct from someone who is still programming in some other language(s). Most often the first way is most natural, but the second way is sometimes more natural. When will it be more natural to introduce an unnecessary index? And Marc, I think you're being a little unfair to the OP, who is clearly unfamiliar with Python. I've been using Python for perhaps ten years, and I still find your code above dense and hard to comprehend. It uses a number of advanced Python concepts that a newbie is going to have trouble with: - the with statement acts by magic; if you don't know what it does, it's an opaque black box. Everything acts by magic unless you know what it does. The Fortran read(*,*)(a(i,j,k),j=1,3) in the OP's first post looks like magic too. I admit that my code shows off advanced Python features but I don't think ``with`` is one of them. It makes it easier to write robust code and maybe even understandable without documentation by just reading it as English text. - you re-use the same name for different uses, which can cause confusion. Do you mean `lines`? Then I disagree because the (duck) type is always iterable over lines. I just changed the content by filtering. - generator expressions. - functional programming using partial. - you call a function that uses a list comprehension with both map and iterator slicing inside it. No wonder the OP had trouble with it. *I* have trouble with it, and would need to sit down at the interactive interpreter and play around with it for a while to be sure what it actually does. If it was your intention to make Python look as obtuse and mysterious as possible, you almost succeeded. The one things you missed was to replace the read_group function with a lambda in the partial. Well that would make the code harder to understand. ;-) Serious, I think it should be easy to understand the code for someone who knows Python. Yes a newbie will have trouble to understand this, but Python is not Fortran and IMHO I haven't used something really exotic or strange nor did I wrote convoluted and hard to understand things like deeply nested list comprehensions. Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
ssh keepalive
I have a problem with a ssh connection in python I get the error 'NoneType' object has no attribute 'exec_command' I am thinking that maybe the ssh connection is timeing out. Since I have no control over the configuration of the ssh server(which is AIX 5.23), is there anything I can do in python to ensure that the ssh session does not timeout? -- http://mail.python.org/mailman/listinfo/python-list
list to tuple conversion
clp: Thanx to a recent thread I am able to have a print string with a variable number of formatters -- what I now lack for the creation of an elegant print statement is a tuple -- following is the code, the last line of which does not work: code #!/usr/bin/python import xml.sax import eaddyhandler parser = xml.sax.make_parser() h = eaddyhandler.EAddyHandler() parser.setContentHandler(h) parser.parse(.ea.xml) for i in range(1, len(h.m)): k = r%06d % i col = len(h.m[k]) if col 2 and h.m[k][0] : print (col * '%-30s') % h.m[k] /code What's going on is I have an oocalc spreadsheet for e-addresses -- column 1 has the name, and then I keep adding e-addresses for ppl when they get new ones, as successive entries on their row, meaning each row has a variable number of e-address columns. I have an xml extractor that runs before this script using odf.opendocument, which works famously. My class, EAddyHandler, also works, and builds its dictionary of rows in 'm', forgive me, no flames please, I needed a short name for the dictionary I have to type it so many times. The key to 'm' is an 'r' + row number, so I can get stuff out of it and it's still in the right order, fun with dictionaries. What I was hoping for was something that could vary the source for the print statement as cleanly as the 'col' multiplication creates the print format, but the list, 'h.m[k]' is not a tuple, it's a list, and I'm just not quite where I am trying to get with this. If there were a builtin function that took a list and returned a tuple, I'd be there, but if there is such a thing I need someone to point me at it. I can't help thinking I am missing some obvious construct, and I'll be advised to go reread the tutorial, but I'm not there, and if you can take pity on me and point me there, I'll be your friend for life. Well -- I'll be grateful... TIA, Scott -- http://mail.python.org/mailman/listinfo/python-list
Re: Output of pexpect
On Tue, 30 Sep 2008 20:48:12 -0700, Anh Khuong wrote:
I am using pexpect and I want to send output of pexpet to both stdout
and log file concurrently. Anybody know a solution for it please let me
know.
One way is to create a file-like object that forked the output to stdout
and the logfile.
class forkwriter(object):
def __init__(self, filename):
self.file = open(filename, 'w')
def write(self, s):
sys.stdout.write(s)
self.file.write(s)
I've never used pexpect myself though, but if pexpect write things to the
to the stdout, then you can redirect stdout
import sys
sys.stdout = forkwriter('mylog.log')
(note: the forkwriter class would have to be modified a bit to use the
background sys.__stdout__ instead of sys.stdout)
--
http://mail.python.org/mailman/listinfo/python-list
Re: list to tuple conversion
2008/10/1 sc [EMAIL PROTECTED]: If there were a builtin function that took a list and returned a tuple, I'd be there, but if there is such a thing I need someone to point me at it. I can't help thinking I am missing some obvious construct, and I'll be advised to go reread the tutorial, but I'm not there, and if you can take pity on me and point me there, I'll be your friend for life. Well -- I'll be grateful... tuple type 'tuple' tuple([1,2,3]) (1, 2, 3) -- http://mail.python.org/mailman/listinfo/python-list
Re: list to tuple conversion
sc wrote: clp: Thanx to a recent thread I am able to have a print string with a variable number of formatters -- what I now lack for the creation of an elegant print statement is a tuple -- following is the code, the last line of which does not work: code #!/usr/bin/python import xml.sax import eaddyhandler parser = xml.sax.make_parser() h = eaddyhandler.EAddyHandler() parser.setContentHandler(h) parser.parse(.ea.xml) for i in range(1, len(h.m)): k = r%06d % i col = len(h.m[k]) if col 2 and h.m[k][0] : print (col * '%-30s') % h.m[k] /code What's going on is I have an oocalc spreadsheet for e-addresses -- column 1 has the name, and then I keep adding e-addresses for ppl when they get new ones, as successive entries on their row, meaning each row has a variable number of e-address columns. I have an xml extractor that runs before this script using odf.opendocument, which works famously. My class, EAddyHandler, also works, and builds its dictionary of rows in 'm', forgive me, no flames please, I needed a short name for the dictionary I have to type it so many times. The key to 'm' is an 'r' + row number, so I can get stuff out of it and it's still in the right order, fun with dictionaries. What I was hoping for was something that could vary the source for the print statement as cleanly as the 'col' multiplication creates the print format, but the list, 'h.m[k]' is not a tuple, it's a list, and I'm just not quite where I am trying to get with this. If there were a builtin function that took a list and returned a tuple, I'd be there, but if there is such a thing I need someone to point me at it. I can't help thinking I am missing some obvious construct, and I'll be advised to go reread the tutorial, but I'm not there, and if you can take pity on me and point me there, I'll be your friend for life. Well -- I'll be grateful... TIA, Scott -- http://mail.python.org/mailman/listinfo/python-list L = [1,2,3,4,5] t = tuple(L) t (1, 2, 3, 4, 5) -- http://mail.python.org/mailman/listinfo/python-list
Event-driven framework (other than Twisted)?
Are there any python event driven frameworks other than twisted? -- http://mail.python.org/mailman/listinfo/python-list
Are there any python micro-frameworks (like ruby's Camping)?
Are there any python micro-frameworks (like ruby's Camping)? -- http://mail.python.org/mailman/listinfo/python-list
Re: ssh keepalive
On Wed, 01 Oct 2008 00:30:59 -0700, loial wrote: I have a problem with a ssh connection in python I get the error 'NoneType' object has no attribute 'exec_command' I am thinking that maybe the ssh connection is timeing out. Since I have no control over the configuration of the ssh server(which is AIX 5.23), is there anything I can do in python to ensure that the ssh session does not timeout? No, it's a NoneType object (i.e. your variable contains None) Show us a bit of your code, so we can see why is None there. My guess is that you're trying to perform something on a function that does things in-place and doesn't return anything (e.g. list.append, list.sort) a = [1, 3, 4, 2] a = a.sort() print a [None, None, None, None] # should be a = [1, 3, 4, 2] a.sort() print a [1, 2, 3, 4] -- http://mail.python.org/mailman/listinfo/python-list
Re: XMLRPC - C Client / Python Server
On 30 Sep, 21:58, Michael Torrie [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: I have implemented a simple Python XMLRPC server and need to call it from a C/C++ client. What is the simplest way to do this? I need to pass numerical arrays from C/C++ to Python. Which do you need, C or C++? They are two different languages with different possibilities for libraries. As the other poster mentioned, xmlrpc-c is a good one for C, and also comes with bindings for C++ which I have used. Getting xmlrpc-c compiled can be a real challenge though. I recommend you use binary packages for your distribution of Linux. If you need it on Win32, then you'll have to spend a day or two figuring out how to build it on Windows. I eventually got the both the C and C++ client library built in Mingw with libcurl as the transport. But it was a real pain. My problem is that I need xmlrpc-c (preferably the C++ bindings) on windows. I have just started to build xmlrpc-c on windows, but no success yet, seems to be quite troublesome. Are there any other xmlrpc libraries for C/C++ around with prebuilt binaries that work in a client/server configuration with Python as a xmlrpc server? Carl Carl -- http://mail.python.org/mailman/listinfo/python-list
Re: XMLRPC - C Client / Python Server
On Wed, Oct 1, 2008 at 1:05 AM, [EMAIL PROTECTED] wrote: On 30 Sep, 21:58, Michael Torrie [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: I have implemented a simple Python XMLRPC server and need to call it from a C/C++ client. What is the simplest way to do this? I need to pass numerical arrays from C/C++ to Python. Which do you need, C or C++? They are two different languages with different possibilities for libraries. As the other poster mentioned, xmlrpc-c is a good one for C, and also comes with bindings for C++ which I have used. Getting xmlrpc-c compiled can be a real challenge though. I recommend you use binary packages for your distribution of Linux. If you need it on Win32, then you'll have to spend a day or two figuring out how to build it on Windows. I eventually got the both the C and C++ client library built in Mingw with libcurl as the transport. But it was a real pain. My problem is that I need xmlrpc-c (preferably the C++ bindings) on windows. I have just started to build xmlrpc-c on windows, but no success yet, seems to be quite troublesome. Are there any other xmlrpc libraries for C/C++ around with prebuilt binaries that work in a client/server configuration with Python as a xmlrpc server? The whole point of XML-RPC is to be language-neutral, so the with Python part of your requirements is superfluous. On that note, you might want to try asking in a newsgroup/mailinglist that's more XML-RPC or Windows or C(++) specific. Cheers, Chris -- Follow the path of the Iguana... http://rebertia.com Carl Carl -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
On Wed, 01 Oct 2008 01:01:41 -0700, Phillip B Oldham wrote: Are there any python event driven frameworks other than twisted? Most GUI package use event-driven model (e.g. Tkinter). -- http://mail.python.org/mailman/listinfo/python-list
Re: list to tuple conversion
Gary M. Josack wrote: sc wrote: clp: Thanx to a recent thread I am able to have a print string with a variable number of formatters -- what I now lack for the creation of an elegant print statement is a tuple -- following is the code, the last line of which does not work: code #!/usr/bin/python import xml.sax import eaddyhandler parser = xml.sax.make_parser() h = eaddyhandler.EAddyHandler() parser.setContentHandler(h) parser.parse(.ea.xml) for i in range(1, len(h.m)): k = r%06d % i col = len(h.m[k]) if col 2 and h.m[k][0] : print (col * '%-30s') % h.m[k] /code What's going on is I have an oocalc spreadsheet for e-addresses -- column 1 has the name, and then I keep adding e-addresses for ppl when they get new ones, as successive entries on their row, meaning each row has a variable number of e-address columns. I have an xml extractor that runs before this script using odf.opendocument, which works famously. My class, EAddyHandler, also works, and builds its dictionary of rows in 'm', forgive me, no flames please, I needed a short name for the dictionary I have to type it so many times. The key to 'm' is an 'r' + row number, so I can get stuff out of it and it's still in the right order, fun with dictionaries. What I was hoping for was something that could vary the source for the print statement as cleanly as the 'col' multiplication creates the print format, but the list, 'h.m[k]' is not a tuple, it's a list, and I'm just not quite where I am trying to get with this. If there were a builtin function that took a list and returned a tuple, I'd be there, but if there is such a thing I need someone to point me at it. I can't help thinking I am missing some obvious construct, and I'll be advised to go reread the tutorial, but I'm not there, and if you can take pity on me and point me there, I'll be your friend for life. Well -- I'll be grateful... TIA, Scott -- http://mail.python.org/mailman/listinfo/python-list L = [1,2,3,4,5] t = tuple(L) t (1, 2, 3, 4, 5) fine, documented now, for the world to see, I'm an idiot, fine, but anyway, thank you both, I'll shutup now. sc -- http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
Did you try WebPy? http://webpy.org/ Hum, the website seems to be down today Sam -- http://mail.python.org/mailman/listinfo/python-list
Интернет магазин для похуде ния Shop Body
Мы рады предложить Вашему вниманию товары для здоровья самые качественные и эффективные товары ведущих производителей мира: пояса, бандажи, корсеты, корректоры осанки, изделия для похудения и лечения целлюлита, массажеры и миостимуляторы, аппараты физиотерапии и медтехнику, наборы для ухода за руками, а также: термобелье и грелки, фиксаторы суставов, косметику для уход за лицом и волосами, принадлежности и техника для дома и дачи, техника и приспособления для кухни, домашние тренажеры и спортивные товары, ортопедические подушки и матрасы и многое другое. -- http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
On Oct 1, 9:25 am, Lie Ryan [EMAIL PROTECTED] wrote: Most GUI package use event-driven model (e.g. Tkinter). I've noticed that. I'm thinking more for a web environment (instead of MVC) or as a HTTP server. I know Twisted has TwistedWeb, but I'm looking for alternatives. -- http://mail.python.org/mailman/listinfo/python-list
Интернет магазин для похуде ния ShopBody
Интернет магазин товаров для красоты и здоровья ShopBody Мировые бренды. Профессиональная консультация. Моментальная доставка. Товары почтой. Широкий ассортимент. Интернет-магазин для похудения и борьбы с целлюлитом Shopbody -- http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
On Oct 1, 9:53 am, Sam [EMAIL PROTECTED] wrote: Did you try WebPy?http://webpy.org/Hum, the website seems to be down today Not yet - I'm hoping the python community can suggest some examples of micro/small frameworks (which just supply the basics; no forms/ templating/ORM/etc) so I can compare and select the one which suits my needs. -- http://mail.python.org/mailman/listinfo/python-list
Using Tkinter and Tix together opens a new DOS Window in addition to the actual GUI on windows XP
Hi, I m using Tkinter and Tix. I'm using Tkinter mainly for all the widgets except for the TixComboBox for which I use Tix. My event loop starts like this: myRoot = Tix.Tk() myRoot.title(Test Automation)# myAppGUIObject = myAppGUI(myRoot, logger) #myAPPGUI is the class for creating GUI myRoot.mainloop() The problem is as soon as I doubel click on this script a DOS window opens up in addition to the GUI. I don't why is this happening? I assume the problem is becuase I'm using the statement: Tix.Tk() when I'm using tix for only a combo box and the rest of the widgets are tkinter widgets. So, 1. Is the above approach fine? 2. How can I stop the dos window from opening up? -- Regrads, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: Python arrays and sting formatting options
On Tue, 30 Sep 2008 19:44:40 -0500, Grant Edwards wrote: On 2008-09-30, Steven D'Aprano [EMAIL PROTECTED] wrote: On Tue, 30 Sep 2008 10:57:19 -0500, Grant Edwards wrote: How would the python equivalent go ? You would drag yourself out of the 1960s, install numpy, and then do something like this: I think that was thoughtlessly rude to somebody who is asking a perfectly reasonable question. Sheesh. I guess I should have added a smiley face. So much for trying to be helpful. Oh the rest of your post was helpful. I think you were trying to be funny, but I think you failed. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: list to tuple conversion
En Wed, 01 Oct 2008 04:51:33 -0300, sc [EMAIL PROTECTED] escribió:
Thanx to a recent thread I am able to have a print string
with a variable number of formatters -- what I now lack for
the creation of an elegant print statement is a tuple --
following is the code, the last line of which does not work:
for i in range(1, len(h.m)):
k = r%06d % i
col = len(h.m[k])
if col 2 and h.m[k][0] :
print (col * '%-30s') % h.m[k]
/code
Another alternative would be:
print ''.join('%-30s' % item for item in h.m[k])
You may need to add square brackets [ ] inside the parenthesis () if your
Python version is older than 2.5
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
Re: how to search multiple textfiles ? (Python is slow ?)
In message [EMAIL PROTECTED], Stef Mientki wrote: Lawrence D'Oliveiro wrote: In message [EMAIL PROTECTED], Stef Mientki wrote: I'm really amazed by the speed of Python !! It can only be beaten by findstr, which is only available on windows. Did you try find -exec grep -F? well my windows version doesn't understand that : I assumed when you said It can only be beaten by findstr, which is only available on windows, that meant you had tried some non-Windows options, before concluding that Windows findstr was the fastest. -- http://mail.python.org/mailman/listinfo/python-list
Re: One class per file?
In message [EMAIL PROTECTED], HCB wrote: The book Code Complete recommends that you put only one class in a source file ... That would only apply to languages like C with no namespace control. -- http://mail.python.org/mailman/listinfo/python-list
Re: Odd Errors
In message [EMAIL PROTECTED], Aaron Castironpi Brady wrote: Do you ever want to scream from the rooftops, 'append' operates by side-effect!? No. It's an effect, not a side-effect. -- http://mail.python.org/mailman/listinfo/python-list
Re: Comparing float and decimal
On Sep 30, 8:07 pm, Terry Reedy [EMAIL PROTECTED] wrote:
Documenting the problem properly would mean changing the set
documentation to change at least the definitions of union (|), issubset
(=), issuperset (=), and symmetric_difference (^) from their current
math set based definitions to implementation based definitions that
describe what they actually do instead of what they intend to do. I do
not like this option.
I was thinking more of a single-line warning in the set documentation
to the effect that funny things happen in the absence of transitivity
of equality, perhaps pointing the finger at Decimal as the most
obvious troublemaker; the Decimal documentation could elaborate on
this.
That is, rather than documenting exactly what the set operations do,
document what they're supposed to do (just as now) and declare that
behaviour is undefined for sets of elements for which transitivity
fails.
(1A) All that is needed for fix equality transitivity corruption and the
consequent set/dictview problems is to correctly compare integral
values. For this, Decimal hash seems fine already. For the int i I
tried, hash(i) == hash(float(i)) == hash(Decimal(i)) ==
hash(Fraction(i)) == i.
Good point. Though I'd be a bit uncomfortable with having
Decimal(1) == 1.0 return True, but Decimal('0.5') == 0.5 return False.
Not sure what the source of my discomfort is; partly I think it's
that I want to be able to explain the comparison rules at the
level of types; having some floats behave one way and some behave
another feels odd. And explaining to confused users exactly
why Decimal behaves this way could be fun.
I think I'd prefer option 1 to option 1a.
(3) Further isolate decimals by making decimals also unequal to all
ints. Like (1A), this would easily fix transitivity breakage, but I
would consider the result less desirable.
I'd oppose this. I think having decimals play nicely with integers
is important, both practically and theoretically. There's probably
also already existing code that depends on comparisons between
integers and Decimals working as expected.
So I guess my ranking is 0 1 1a 3, though I could live
with any of 0, 1, or 1a.
It's really the decimal module that's breaking the rules here;
I feel it's the decimal module's responsibility to either
fix or document the resulting problems.
It would also be nice if it were made more obvious somewhere
in the docs that transitivity of equality is important
for correct set and dict behaviour.
Mark
--
http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
On Oct 1, 10:58 am, Phillip B Oldham [EMAIL PROTECTED] wrote: On Oct 1, 9:53 am, Sam [EMAIL PROTECTED] wrote: Did you try WebPy?http://webpy.org/Hum, the website seems to be down today Not yet - I'm hoping the python community can suggest some examples of micro/small frameworks (which just supply the basics; no forms/ templating/ORM/etc) so I can compare and select the one which suits my needs. How about wsgiref in the standard library? It is as small as you can get without resorting to CGI. -- http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
On Oct 1, 10:29 am, Michele Simionato [EMAIL PROTECTED] wrote: How about wsgiref in the standard library? It is as small as you can get without resorting to CGI. Interesting... I'll be sure to check that out also. Someone also mentioned Paste/WebOb, so now I have 3 to test. Any others? -- http://mail.python.org/mailman/listinfo/python-list
Re: Python arrays and sting formatting options
On Wed, 01 Oct 2008 06:58:11 +, Marc 'BlackJack' Rintsch wrote:
I would weaken that claim a tad... I'd say it is usual to write
something like this:
alist = []
for x in some_values:
alist.append(something_from_x)
but it is not uncommon (at least not in my code) to write something
like this equivalent code instead:
alist = [None]*len(some_values)
for i, x in enumerate(some_values):
alist[i] = something_from_x
I have never done this, except in the beginning I used Python, and --
maybe more importantly -- I've never seen this in others code. I really
looks like a construct from someone who is still programming in some
other language(s).
It occurs at least twice in the 2.5 standard library, once in
sre_parse.py:
groups = []
groupsappend = groups.append
literals = [None] * len(p)
for c, s in p:
if c is MARK:
groupsappend((i, s))
# literal[i] is already None
else:
literals[i] = s
and another time in xdrlib.py:
succeedlist = [1] * len(packtest)
count = 0
for method, args in packtest:
print 'pack test', count,
try:
method(*args)
print 'succeeded'
except ConversionError, var:
print 'ConversionError:', var.msg
succeedlist[count] = 0
count = count + 1
Most often the first way is most natural, but the second way is
sometimes more natural.
When will it be more natural to introduce an unnecessary index?
We can agree that the two idioms are functionally equivalent. Appending
is marginally less efficient, because the Python runtime engine has to
periodically resize the list as it grows, and that can in principle take
an arbitrary amount of time if it causes virtual memory paging. But
that's unlikely to be a significant factor for any but the biggest lists.
So in the same way that any while-loop can be rewritten as a recursive
function, and vice versa, so these two idioms can be trivially re-written
from one form to the other. When should you use one or the other?
When the algorithm you have is conceptually about growing a list by
appending to the end, then you should grow the list by appending to the
end. And when the algorithm is conceptually about dropping values into
pre-existing pigeon holes, then you should initialize the list and then
walk it, modifying the values in place.
And if the algorithm in indifferent to which idiom you use, then you
should use whichever idiom you are most comfortable with, and not claim
there's Only One True Way to build a list.
And Marc, I think you're being a little unfair to the OP, who is
clearly unfamiliar with Python. I've been using Python for perhaps ten
years, and I still find your code above dense and hard to comprehend.
It uses a number of advanced Python concepts that a newbie is going
to have trouble with:
- the with statement acts by magic; if you don't know what it does,
it's an opaque black box.
Everything acts by magic unless you know what it does. The Fortran
read(*,*)(a(i,j,k),j=1,3)
in the OP's first post looks like magic too.
It sure does. My memories of Fortran aren't good enough to remember what
that does.
But I think you do Python a disservice. One of my Perl coders was writing
some Python code the other day, and he was amazed at how guessable Python
was. You can often guess the right way to do something. He wanted a set
with all the elements of another set removed, so he guess that s1-s2
would do the job -- and it did. A lot of Python is amazingly readable to
people with no Python experience at all. But not everything.
I admit that my code shows
off advanced Python features but I don't think ``with`` is one of them.
It makes it easier to write robust code and maybe even understandable
without documentation by just reading it as English text.
The first problem with with is that it looks like the Pascal with
statement, but acts nothing like it. That may confuse anyone with Pascal
experience, and there are a lot of us out there.
The second difficulty is that:
with open('test.txt') as lines:
binds the result of open() to the name lines. How is that different
from lines = open('test.txt')? I know the answer, but we shouldn't
expect newbies coming across it to be anything but perplexed.
Now that the newbie has determined that lines is a file object, the very
next thing you do is assign something completely different to 'lines':
lines = (line for line in lines if line.strip())
So the reader needs to know that brackets aren't just for grouping like
in most other languages, but also that (x) can be equivalent to a for-
loop. They need to know, or guess, that iterating over a file object
returns lines of the file, and they have to keep the two different
bindings of lines straight in their head in a piece of code that uses
lines twice and line three times.
And then they hit the
Re: Odd Errors
On Wed, 01 Oct 2008 22:14:49 +1300, Lawrence D'Oliveiro wrote: In message [EMAIL PROTECTED], Aaron Castironpi Brady wrote: Do you ever want to scream from the rooftops, 'append' operates by side-effect!? No. It's an effect, not a side-effect. Side-effect has the technical meaning in functional languages of any change of state that isn't the creation and return of a function result. People who have been influenced by such functional languages, and many Python users are, often use the same meaning. I for one have no difficulty understanding from context the difference between append operates by side-effect and a function which modifies global variables is having side-effects. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
Re: One class per file?
Lawrence D'Oliveiro a écrit : In message [EMAIL PROTECTED], HCB wrote: The book Code Complete recommends that you put only one class in a source file ... That would only apply to languages like C with no namespace control. classes in C ?-) OTHO, 'one class per file' is a standard idiom in Java and IIRC in C++ (which both have namespaces one way or another) -- http://mail.python.org/mailman/listinfo/python-list
Re: Wait or not?
Eric wrote: I've been wanting to learn Python for a while now but I can't decide on whether to wait for Python 3's final release and learn it or just go ahead and learn 2.x. Would it be hard to make the transition being a noob? I suggest you stick to Python 2.5 or 2.6 for now. It's going to take several months to years until the majority of 3rd party software supports the 3.x series. Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: Shed Skin (restricted) Python-to-C++ compiler 0.0.29
Not to sound negative, but what's with the 0.0.x version numbers ? Maybe it's just me, but seeing a zero major/minor version give me the impression of experimental/pre-alpha project, which (from my very limited knowledge) doesn't do justice to shedskin's current state. I know of too many bugs to be comfortable calling it 0.1 just yet.. And I really want to improve extension module support (as mentioned) first. There's not much else holding back a 0.1 release. Thanks, Mark. -- http://mail.python.org/mailman/listinfo/python-list
parse a normal textfile
hi all I have one normal text file. I need to parse the file, that too in an associative way . suppose that below is the normal textfile name='adf' id =1 value=344 So when I give 'name' as an input, the output must be 'adf' so please help me out with this. regards, devi. -- http://mail.python.org/mailman/listinfo/python-list
Tix: Windows XP: Problem - how to stop root window from popping up with Tix
Hi, Im using Tix on widows XP and I've tried many ways to suppress the root window. But so far I'm unable to do it. Please suggest how can I suppress the root window. My code is as follows: import Tix myRoot = Tix.Tk() myRoot.withdraw() myRoot.deiconify() myRoot.title(Test Automation) #Create GUI Object and pass the logger object myAppGUIObject = myAppGUI(myRoot, logger) #My AppGUI class creates the GUI which heavily uses the Tkinter widgets and only TixComboBox myRoot.mainloop() Please suggest if there is anything I'm missing. Thanks and regards, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: Python arrays and sting formatting options
On Wed, 01 Oct 2008 09:35:03 +, Steven D'Aprano wrote:
On Wed, 01 Oct 2008 06:58:11 +, Marc 'BlackJack' Rintsch wrote:
I would weaken that claim a tad... I'd say it is usual to write
something like this:
alist = []
for x in some_values:
alist.append(something_from_x)
but it is not uncommon (at least not in my code) to write something
like this equivalent code instead:
alist = [None]*len(some_values)
for i, x in enumerate(some_values):
alist[i] = something_from_x
I have never done this, except in the beginning I used Python, and --
maybe more importantly -- I've never seen this in others code. I
really looks like a construct from someone who is still programming in
some other language(s).
It occurs at least twice in the 2.5 standard library, once in
sre_parse.py:
groups = []
groupsappend = groups.append
literals = [None] * len(p)
for c, s in p:
if c is MARK:
groupsappend((i, s))
# literal[i] is already None
else:
literals[i] = s
and another time in xdrlib.py:
succeedlist = [1] * len(packtest)
count = 0
for method, args in packtest:
print 'pack test', count,
try:
method(*args)
print 'succeeded'
except ConversionError, var:
print 'ConversionError:', var.msg
succeedlist[count] = 0
count = count + 1
I guess the first falls into the micro optimization category because it
binds `groups.append` to a name to spare the attribute look up within the
loop.
Both have in common that not every iteration changes the list, i.e. the
preset values are not just place holders but values that are actually
used sometimes. That is different from creating a list of place holders
that are all overwritten in any case.
- the with statement acts by magic; if you don't know what it does,
it's an opaque black box.
Everything acts by magic unless you know what it does. The Fortran
read(*,*)(a(i,j,k),j=1,3)
in the OP's first post looks like magic too.
It sure does. My memories of Fortran aren't good enough to remember what
that does.
But I think you do Python a disservice. One of my Perl coders was
writing some Python code the other day, and he was amazed at how
guessable Python was. You can often guess the right way to do something.
I think my code would be as guessable to a Lisp, Scheme, or Haskell
coder. Okay, Lispers and Schemers might object the ugly syntax. ;-)
I admit that my code shows off advanced Python features but I don't
think ``with`` is one of them. It makes it easier to write robust code
and maybe even understandable without documentation by just reading it
as English text.
The first problem with with is that it looks like the Pascal with
statement, but acts nothing like it. That may confuse anyone with Pascal
experience, and there are a lot of us out there.
But Python is not Pascal either. Nonetheless a Pascal coder might guess
what the ``with`` does. Not all the gory details but that it opens a
file and introduces `lines` should be more or less obvious to someone who
has programmed before.
The second difficulty is that:
with open('test.txt') as lines:
binds the result of open() to the name lines. How is that different
from lines = open('test.txt')? I know the answer, but we shouldn't
expect newbies coming across it to be anything but perplexed.
Even if newbies don't understand all the details they should be
introduced to ``with`` right away IMHO. Because if you explain all the
details, even if they understand them, they likely will ignore the
knowledge because doing it right is a lot of boiler plate code. So
usually people write less robust code and ``with`` is a simple way to
solve that problem.
Now that the newbie has determined that lines is a file object, the very
next thing you do is assign something completely different to 'lines':
lines = (line for line in lines if line.strip())
So the reader needs to know that brackets aren't just for grouping like
in most other languages, but also that (x) can be equivalent to a for-
loop. They need to know, or guess, that iterating over a file object
returns lines of the file, and they have to keep the two different
bindings of lines straight in their head in a piece of code that uses
lines twice and line three times.
Yes the reader needs to know a basic Python syntax construct to
understand this. And some knowledge from the tutorial about files. So
what?
And then they hit the next line, which includes a function called
partial, which has a technical meaning out of functional languages and
I am sure it will mean nothing whatsoever to anyone unfamiliar to it.
It's not something that is guessable, unlike open() or len() or
append().
Why on earth has everything to be guessable for someone who doesn't know
Python or even programming at all?
Re: Tix: Windows XP: Problem - how to stop root window from popping up with Tix
On Wed, 01 Oct 2008 11:33:59 +0100, dudeja.rajat wrote: Hi, Im using Tix on widows XP and I've tried many ways to suppress the root window. But so far I'm unable to do it. Please suggest how can I suppress the root window. My code is as follows: import Tix myRoot = Tix.Tk() myRoot.withdraw() myRoot.deiconify() myRoot.title(Test Automation) #Create GUI Object and pass the logger object myAppGUIObject = myAppGUI(myRoot, logger) #My AppGUI class creates the GUI which heavily uses the Tkinter widgets and only TixComboBox myRoot.mainloop() Please suggest if there is anything I'm missing. Thanks and regards, Rajat The root window is the main window, not the DOS box. I think in windows, you should use pythonw.exe or something to open the python script so not to open a dos box. -- http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
On Wed, 01 Oct 2008 01:02:24 -0700, Phillip B Oldham wrote: Are there any python micro-frameworks (like ruby's Camping)? Maybe `CherryPy`!? It's the heart of other frameworks that add templating, ORM and the like to it. Another consideration might be `Werkzeug`. Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: closures and dynamic binding
I didn't see this mentioned in the thread yet: the double-lambda is unnecessary (and a hack). What you should do when you need early binding is... early binding. ;) Namely: f = [lambda n=n: n for n in range(10)] print f[0]() print f[1]() Note the n=n, this prints 0 and 1 instead of 9/9. -- http://mail.python.org/mailman/listinfo/python-list
Re: ssh keepalive
On Wed, 01 Oct 2008 08:07:43 +, Lie Ryan wrote: a = [1, 3, 4, 2] a = a.sort() print a [None, None, None, None] *That* would be really odd. The last line should be just a singel `None` and not a list. :-) Ciao, Marc 'BlackJack' Rintsch -- http://mail.python.org/mailman/listinfo/python-list
Re: ssh keepalive
On Wed, 01 Oct 2008 10:47:28 +, Marc 'BlackJack' Rintsch wrote: On Wed, 01 Oct 2008 08:07:43 +, Lie Ryan wrote: a = [1, 3, 4, 2] a = a.sort() print a [None, None, None, None] *That* would be really odd. The last line should be just a singel `None` and not a list. :-) Ciao, Marc 'BlackJack' Rintsch Ah yeah, I originally intended to give a list of list example, but changed mind and forgot to change that last line. -- http://mail.python.org/mailman/listinfo/python-list
Re: Eggs, VirtualEnv, and Apt - best practices?
Our solution consists of: * our own base python distribution, decoupled from the OS one (for various reasons, one being version independency) * distutils / setuptools / virtualenv is included in that python installation, no other eggs installed in site-packages * virtualenv + Paver to manage build environments * Paver plugins containing standard (continuous) build targets * a hand-crafted tool that builds an RPM (.deb would be easy, too) from an egg URL / filename, packaging a ready-to-run virtualenv environment into the RPM; it's a rather shallow shell above virtualenv and rpmbuild, automating the process and enforcing company standards. -- http://mail.python.org/mailman/listinfo/python-list
Re: closures and dynamic binding
On 1 Okt, 12:43, jhermann [EMAIL PROTECTED] wrote: f = [lambda n=n: n for n in range(10)] print f[0]() print f[1]() Note the n=n, this prints 0 and 1 instead of 9/9. Yes, Terry mentioned this in his response to my first message. Not with lambdas, however, but he did state that he didn't believe that such a distinction needed to be made clear to everyone. Paul -- http://mail.python.org/mailman/listinfo/python-list
Isolated environment for execfile
Hello python gurus.
I got quite unusual problem and all my searches to find the answer on my
own were not successful.
Here is the scenario:
I have the python program, let's call it script1.py, this program needs to
execute another python script, let's call it script2.py.
In script1.py I have the statement:
execfile('script2.py')
Everything is fine beside one thing. The script2.py is pretty big python
program which does a lot of things and also while runs, it modifies many
variables and module members, such for example as sys.path. So when
script2.py exits all changes which it does are visible in my main program,
script1.py. Even more, I need to execute script2.py in loop, several times
during script1.py session. And all changes, which script2.py does just
accumulate.
I wander, is there any way to execute script2.py in it's own environment,
so when script2.py exits, all modifications, which it is done in global
modules are gone?
Ideally I would love to have the following.
script1.py:
import sys
i = 10
print len(sys.path) # displays 5 for example
execfile('script2.py')
print i # still displays 10
print len(sys.path) # still displays 5
script2.py:
import sys
i += 10
sys.path.insert(0, '\\my folder')
Sorry for such long and probably confusing message. As you probably see, I
am not really strong python programmer and don't know advanced techniques. I
have spent several days trying to look for the solution, the problem is, I
even don't know what to look for. All references to execfile more talk about
saving the environment instead of isolating it.
Would so much appreciate any help.
Thanks in advance.
Igor.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Tix: Windows XP: Problem - how to stop root window from popping up with Tix
On Wed, Oct 1, 2008 at 11:44 AM, Lie Ryan [EMAIL PROTECTED] wrote: On Wed, 01 Oct 2008 11:33:59 +0100, dudeja.rajat wrote: Hi, Im using Tix on widows XP and I've tried many ways to suppress the root window. But so far I'm unable to do it. Please suggest how can I suppress the root window. My code is as follows: import Tix myRoot = Tix.Tk() myRoot.withdraw() myRoot.deiconify() myRoot.title(Test Automation) #Create GUI Object and pass the logger object myAppGUIObject = myAppGUI(myRoot, logger) #My AppGUI class creates the GUI which heavily uses the Tkinter widgets and only TixComboBox myRoot.mainloop() Please suggest if there is anything I'm missing. Thanks and regards, Rajat The root window is the main window, not the DOS box. I think in windows, you should use pythonw.exe or something to open the python script so not to open a dos box. -- http://mail.python.org/mailman/listinfo/python-list No, even that does not help. :-( -- Regards, Rajat -- http://mail.python.org/mailman/listinfo/python-list
Re: Are there any python micro-frameworks (like ruby's Camping)?
On Oct 1, 3:42 am, Marc 'BlackJack' Rintsch [EMAIL PROTECTED] wrote: On Wed, 01 Oct 2008 01:02:24 -0700, Phillip B Oldham wrote: Are there any python micro-frameworks (like ruby's Camping)? Maybe `CherryPy`!? It's the heart of other frameworks that add templating, ORM and the like to it. Yeah definitely check out CherryPy. Not sure if it's micro enough for you, but it's pretty sweet. ;) -- http://mail.python.org/mailman/listinfo/python-list
change line with columns when print
Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Thnak you in advance, Ionut -- http://mail.python.org/mailman/listinfo/python-list
Re: change line with columns when print
Thank you Almar It worked :), I now have to format it nicely Ionut - Original Message From: Almar Klein [EMAIL PROTECTED] To: python-list@python.org Sent: Wednesday, October 1, 2008 2:57:00 PM Subject: Re: change line with columns when print Hi, probably not the best solution, but this should work: L1 = [] L2 = [] for i in file: tmp = i.split( ) L1.append(tmp[0]) L2.append(tmp[1]) for i in L1: print i, print # new line for i in L2: print i, print # new line Almar 2008/10/1 sandric ionut [EMAIL PROTECTED] Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Thnak you in advance, Ionut -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: parse a normal textfile
devi thapa wrote: hi all I have one normal text file. I need to parse the file, that too in an associative way . suppose that below is the normal textfile name='adf' id =1 value=344 there are many approaches to config files. But in your special example, it looks like a simplified mapping, so parsed=eval(dict(%s) % ,.join(line for line in file(textfile) if line.strip() ) ) parsed['name'] 'adf' but of course eval() is dangerous, so feel free to explore more then this one solution. Regards Tino smime.p7s Description: S/MIME Cryptographic Signature -- http://mail.python.org/mailman/listinfo/python-list
Re: change line with columns when print
On Wed, 1 Oct 2008 04:43:34 -0700 (PDT) sandric ionut [EMAIL PROTECTED] wrote: Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Probably tons of ways. Here's one with no input checking. L = [x.strip().split() for x in open(infile) if x] for i in range(2): print ' '.join([x[i] for x in L]) -- D'Arcy J.M. Cain [EMAIL PROTECTED] | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: change line with columns when print
Hi, probably not the best solution, but this should work: L1 = [] L2 = [] for i in file: tmp = i.split( ) L1.append(tmp[0]) L2.append(tmp[1]) for i in L1: print i, print # new line for i in L2: print i, print # new line Almar 2008/10/1 sandric ionut [EMAIL PROTECTED] Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Thnak you in advance, Ionut -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: change line with columns when print
Even better, Thank you all Ionut - Original Message From: D'Arcy J.M. Cain [EMAIL PROTECTED] To: sandric ionut [EMAIL PROTECTED] Cc: python-list@python.org Sent: Wednesday, October 1, 2008 3:13:55 PM Subject: Re: change line with columns when print On Wed, 1 Oct 2008 04:43:34 -0700 (PDT) sandric ionut [EMAIL PROTECTED] wrote: Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Probably tons of ways. Here's one with no input checking. L = [x.strip().split() for x in open(infile) if x] for i in range(2): print ' '.join([x[i] for x in L]) -- D'Arcy J.M. Cain [EMAIL PROTECTED] | Democracy is three wolves http://www.druid.net/darcy/ | and a sheep voting on +1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
PyCon 2009 (US) - Call for Tutorials
The period for submitting tutorial proposals for Pycon 2009 (US) is open and will continue through Friday, October 31th. This year features two pre-conference days devoted to tutorials on Wednesday March 25 Thursday March 26 in Chicago. This allows for more classes than ever. Tutorials are 3-hours long on a specific topic of your choice. Last year we featured classes on Learning Python, Web Development, Scientific Computing, and many more. Class size varied from 10 to over 60 students. The extended time spent in class allows teachers to cover a lot of material while allowing for interaction with students. The full Call for Tutorial Proposals, including submission details, an example proposal as well as a template, is available at http://us.pycon.org/2009/tutorials/proposals/. Tutorial selections will be announced in early December to give you time to prepare your class and PyCon will compensate instructors US$1,500 per tutorial. If you have any questions, please contact [EMAIL PROTECTED] Greg Lindstrom Tutorial Coordinator, PyCon 2009 (US) -- http://mail.python.org/mailman/listinfo/python-list
Re: Tix: Windows XP: Problem - how to stop root window from popping up with Tix
Lie Ryan wrote: On Wed, 01 Oct 2008 11:33:59 +0100, dudeja.rajat wrote: Please suggest how can I suppress the root window The root window is the main window, not the DOS box. I think in windows, you should use pythonw.exe or something to open the python script so not to open a dos box. And you can accomplish this as a clicky by renaming your program from someprog.py to someprog.pyw. --Scott David Daniels [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: IDLE doesn't run on OSX 10.3.9
Just did a new install of Tcl/tk from activestate.com and IDLE still not working... -Tom On Sep 30, 1:15 pm, Kevin Walzer [EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Just installed Python 2.5.2 on a PowerPC G4 running OSX 10.3.9 and when clicking on the IDLE icon in the MacPython 2.5 folder nothing happens, program doesn't execute... I've uninstalled, reinstalled over again... I friend of mine just installed the same 2.5.2 download from the Python.org website on OSX 10.4.11 and all went fine...but shouldn't it install on 10.3.9 as well? Anyone have any ideas? Thanks. -Tom Do you have Tcl/Tk installed? It doesn't come on 10.3.9 by default. -- Kevin Walzer Code by Kevinhttp://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
text file
HI all,
i have some problem with the code belove, i have a list of servers in
a textfile (elencopc.txt) i would to retrieve informations via WMI
( cicle for ), but i don't understand if the code is correct:
import win32com.client
import string
import sys
listserver = open('c:\\elencopc.txt','r')
objWMIService = win32com.client.Dispatch(WbemScripting.SWbemLocator)
objSWbemServices = objWMIService.ConnectServer(listserver,root
\cimv2)
colItems = objSWbemServices.ExecQuery(Select * from
Win32_QuickFixEngineering)
for objItem in colItems:
print Caption: , objItem.Caption
print Description: , objItem.Description
print Fix Comments: , objItem.FixComments
print HotFix ID: , objItem.HotFixID
print Install Date: , objItem.InstallDate
print Installed By: , objItem.InstalledBy
print Installed On: , objItem.InstalledOn
print Name: , objItem.Name
print Service Pack In Effect: , objItem.ServicePackInEffect
print Status: , objItem.Status
I receive the error :
ile C:\Python25\Lib\site-packages\win32com\client\dynamic.py, line
258, in _ApplyTypes_
result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags,
retType, argTypes) + args)
com_error: (-2147352567, 'Exception occurred.', (0, 'SWbemLocator',
'The RPC server is unavailable. ', None, 0, -2147023174), None)
MY big dubt is if the code is correct... because if i use vbscript all
works fine..
thanks a lot in advance
--
http://mail.python.org/mailman/listinfo/python-list
Re: text file
On Oct 1, 4:03 pm, [EMAIL PROTECTED] wrote:
HI all,
i have some problem with the code belove, i have a list of servers in
a textfile (elencopc.txt) i would to retrieve informations via WMI
( cicle for ), but i don't understand if the code is correct:
import win32com.client
import string
import sys
listserver = open('c:\\elencopc.txt','r')
objWMIService = win32com.client.Dispatch(WbemScripting.SWbemLocator)
objSWbemServices = objWMIService.ConnectServer(listserver,root
\cimv2)
colItems = objSWbemServices.ExecQuery(Select * from
Win32_QuickFixEngineering)
for objItem in colItems:
print Caption: , objItem.Caption
print Description: , objItem.Description
print Fix Comments: , objItem.FixComments
print HotFix ID: , objItem.HotFixID
print Install Date: , objItem.InstallDate
print Installed By: , objItem.InstalledBy
print Installed On: , objItem.InstalledOn
print Name: , objItem.Name
print Service Pack In Effect: , objItem.ServicePackInEffect
print Status: , objItem.Status
I receive the error :
ile C:\Python25\Lib\site-packages\win32com\client\dynamic.py, line
258, in _ApplyTypes_
result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags,
retType, argTypes) + args)
com_error: (-2147352567, 'Exception occurred.', (0, 'SWbemLocator',
'The RPC server is unavailable. ', None, 0, -2147023174), None)
MY big dubt is if the code is correct... because if i use vbscript all
works fine..
thanks a lot in advance
My problem is how to translate this vbs in python:
Dim fso
Dim strComputer
Set fso = CreateObject(Scripting.FileSystemObject)
Set ElencoPC = fso.OpenTextFile(elencoPC.txt , 1, False)
Do Until ElencoPC.AtEndOfStream
strComputer = ElencoPC.ReadLine
thanks
--
http://mail.python.org/mailman/listinfo/python-list
Re: IDLE doesn't run on OSX 10.3.9
[EMAIL PROTECTED] wrote: Just did a new install of Tcl/tk from activestate.com and IDLE still not working... -Tom Did you install Tcl/Tk 8.5? It won't work with the build of Python from python.org (it looks for 8.4). -- Kevin Walzer Code by Kevin http://www.codebykevin.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Zsi interoperability
Il giorno mar, 16/09/2008 alle 08.31 +0200, Mailing List SVR ha scritto: Il giorno lun, 15/09/2008 alle 20.26 +0200, Marco Bizzarri ha scritto: On Mon, Sep 15, 2008 at 8:15 PM, Stefan Behnel [EMAIL PROTECTED] wrote: Mailing List SVR wrote: I have to implement a soap web services from wsdl, the server is developed using oracle, is zsi or some other python library for soap interoperable with oracle soa? No idea, but I'd definitely try soaplib before ZSI. Stefan I'm working on a project where I need to write a client for SOAP with Attachments; I can see ZSI does not support it; is soaplib any better? I don't need soap attachments, I have some images but are base64 encoded string, all other field are string, however my server require client certificate authentication, does soaplib or zsi work in this environment? is really strange that there isn't a standard and well manteined soap-1.2 implementation for python so we can talk without interoperability issue with axis2,metro,cxf,oracle,.net ecc.. :-( thanks Nicola I can confirm that zsi (2.0) works fine in my environment: - oracle soa, as soap server - class generation from wsdl - several complex types - no soap attachments (I transfer image as base64 encoded string) regards Nicola Can you argument your suggestion a little more? Regards Marco -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
indirectly addressing vars in Python
Forgive my newbieness - I want to refer to some variables and indirectly
alter them. Not sure if this is as easy in Python as it is in C.
Say I have three vars: oats, corn, barley
I add them to a list: myList[{oats}, {peas}, {barley}]
Then I want to past that list around and alter one of those values.
That is I want to increment the value of corn:
myList[1] = myList[1] + 1
Is there some means to do that?. Here's my little session trying to
figure this out:
oats = 1
peas = 6
myList=[]
myList
[]
myList.append(oats)
myList
[1]
myList.append(peas)
myList
[1, 6]
myList[1]= myList[1]+1
myList
[1, 7]
peas
6
So I don't seem to change the value of peas as I wished. I'm passing
the values of the vars into the list, not the vars themselves, as I
would like.
Your guidance appreciated...
Ross.
--
http://mail.python.org/mailman/listinfo/python-list
Peek inside iterator (is there a PEP about this?)
Hi there. For most use cases I think about, the iterator protocol is more than enough. However, on a few cases, I've needed some ugly hacks. Ex 1: a = iter([1,2,3,4,5]) # assume you got the iterator from a function and b = iter([1,2,3]) # these two are just examples. then, zip(a,b) has a different side effect from zip(b,a) After the excecution, in the first case, iterator a contains just [5], on the second, it contains [4,5]. I think the second one is correct (the 5 was never used, after all). I tried to implement my 'own' zip, but there is no way to know the length of the iterator (obviously), and there is also no way to 'rewind' a value after calling 'next'. Ex 2: Will this iterator yield any value? Like with most iterables, a construct if iterator: # do something would be a very convenient thing to have, instead of wrapping a 'next' call on a try...except and consuming the first item. Ex 3: if any(iterator): # do something ... but the first true value was already consumed and # cannot be reused. Any cannot peek inside the iterator without # consuming the value. Instead, i1, i2 = tee(iterator) if any(i1): # do something with i2 Question/Proposal: Has there been any PEP regarding the problem of 'peeking' inside an iterator? Knowing if the iteration will end or not, and/or accessing the next value, without consuming it? Is there any (simple, elegant) way around it? Cheers, -- Luis Zarrabeitia (aka Kyrie) Fac. de Matemática y Computación, UH. http://profesores.matcom.uh.cu/~kyrie -- http://mail.python.org/mailman/listinfo/python-list
Re: Python script for tracert
Hi, I wrote small python only script for tcptraceroute some time ago. This works without a subprocess: http://www.thomas-guettler.de/scripts/tcptraceroute.py.txt Gabriel Genellina schrieb: En Tue, 30 Sep 2008 03:53:21 -0300, cindy jones [EMAIL PROTECTED] escribió: Hello.. I'm trying to do a scripting for tracert in windows using python... I'm using popen(), but it displays only after the tracert is completed. i want the results to be displayed for every route. can anyone help me in this.. Use the subprocess module: import subprocess host = 'www.microsoft.com' p = subprocess.Popen([tracert, '-d', '-w', '100', host], stdout=subprocess.PIPE, stderr=subprocess.STDOUT) while True: line = p.stdout.readline() if not line: break print '--',line, p.wait() -- Thomas Guettler, http://www.thomas-guettler.de/ E-Mail: guettli (*) thomas-guettler + de -- http://mail.python.org/mailman/listinfo/python-list
Re: Texas Python Regional Unconference Reminders
Travis Vaught wrote: Greetings, The Texas Python Regional Unconference is coming up this weekend (October 4-5) and I wanted to send out some more details of the meeting. The web page for the meeting is here: http://www.scipy.org/TXUncon2008 The meeting is _absolutely free_, so please add yourself to the Attendees page if you're able to make it. Also, if you're planning to attend, please send me the following information (to [EMAIL PROTECTED]) so I can request wireless access for you during the meeting: - Full Name - Phone or email - Address - Affiliation Travis E. Oliphant 1-512-826-7480 515 Congress Ave, Suite 2100 Enthought, Inc. -- http://mail.python.org/mailman/listinfo/python-list
Re: indirectly addressing vars in Python
Ross wrote: myList[1]= myList[1]+1 The problem is this makes myList[1] point to a new integer, and not the one that peas points to. Python 2.5.1 (r251:54863, Jul 10 2008, 17:25:56) [GCC 4.1.2 20070925 (Red Hat 4.1.2-33)] on linux2 Type help, copyright, credits or license for more information. oats=[1] peas=[6] mylist = [oats, peas] mylist[1][0] = mylist[1][0]+1 mylist [[1], [7]] peas [7] This is because integers are immutable, but lists are mutable. -- Jeremy Sanders http://www.jeremysanders.net/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
Phillip B Oldham schrieb: On Oct 1, 9:25 am, Lie Ryan [EMAIL PROTECTED] wrote: Most GUI package use event-driven model (e.g. Tkinter). I've noticed that. I'm thinking more for a web environment (instead of MVC) or as a HTTP server. I know Twisted has TwistedWeb, but I'm looking for alternatives. Please explain what you want to do. Maybe the spread toolkit can help you: http://www.spread.org/index.html HTH, Thomas -- Thomas Guettler, http://www.thomas-guettler.de/ E-Mail: guettli (*) thomas-guettler + de -- http://mail.python.org/mailman/listinfo/python-list
Re: indirectly addressing vars in Python
On 2008-10-01, Ross [EMAIL PROTECTED] wrote:
Forgive my newbieness - I want to refer to some variables and
indirectly alter them. Not sure if this is as easy in Python
as it is in C.
Python doesn't have variables. It has names bound to objects.
When you do an assignment, that binds (or rebinds) a name to an
object. There is no such thing as a C-like variable (a named
region of memory with a fixed location into which you can write
different values).
Some objects (e.g. lists, dictionaries) are mutable (you can
change their value or contents), some objects (e.g. strings,
integers, floats) are not mutable.
Say I have three vars: oats, corn, barley
I add them to a list: myList[{oats}, {peas}, {barley}]
Then I want to past that list around and alter one of those
values. That is I want to increment the value of corn:
myList[1] = myList[1] + 1
Is there some means to do that?. Here's my little session
trying to figure this out:
oats = 1
peas = 6
Those two lines created two integer objects with values 1 and 6
and bound the names oats and peas to those two objects.
myList=[]
myList
[]
myList.append(oats)
That line finds the object to which the name oats is
currently bound and appends that object to the list.
myList
[1]
myList.append(peas)
Likewise for the object to which the name peas is currently
bound.
myList
[1, 6]
myList[1]= myList[1]+1
That line creates a new integer object (whose value happens to
be 7) and replaces the object at position 1 in the list with
the new object.
myList
[1, 7]
peas
6
So I don't seem to change the value of peas as I wished.
Correct. The name peas is still bound to the same object it
was before
I'm passing the values of the vars into the list, not the vars
themselves, as I would like.
There are no vars as the word is used in the context of C
programming. Just names and objects.
Here's an article explaining it:
http://rg03.wordpress.com/2007/04/21/semantics-of-python-variable-names-from-a-c-perspective/
A couple other good references:
http://starship.python.net/crew/mwh/hacks/objectthink.html
http://effbot.org/zone/python-objects.htm
--
Grant Edwards grante Yow! What GOOD is a
at CARDBOARD suitcase ANYWAY?
visi.com
--
http://mail.python.org/mailman/listinfo/python-list
Re: indirectly addressing vars in Python
On Wed, Oct 1, 2008 at 7:53 AM, Ross [EMAIL PROTECTED] wrote:
Forgive my newbieness - I want to refer to some variables and indirectly
alter them. Not sure if this is as easy in Python as it is in C.
Say I have three vars: oats, corn, barley
I add them to a list: myList[{oats}, {peas}, {barley}]
You mean:
myList = [oats, peas, barley]
And you're not adding *variables* to a list, you're adding *values* to
the list. The list elements (and the Python runtime) have *no idea*
what variables they are/were bound to.
Then I want to past that list around and alter one of those values. That is
I want to increment the value of corn:
myList[1] = myList[1] + 1
This won't do what you're expecting. Integers in Python are immutable,
so instead of changing the value of 'corn', you're calculating a new
int object and overwriting the first element of the list with it.
Is there some means to do that?. Here's my little session trying to figure
this out:
oats = 1
peas = 6
myList=[]
myList
[]
myList.append(oats)
myList
[1]
myList.append(peas)
myList
[1, 6]
myList[1]= myList[1]+1
myList
[1, 7]
peas
6
So I don't seem to change the value of peas as I wished. I'm passing the
values of the vars into the list, not the vars themselves, as I would like.
Your guidance appreciated...
Python uses *call-by-object*, not call-by-value or call-by-reference
semantics, so unlike C/C++ but like Java you can't make a reference
to a variable and use that to non-locally rebind the variable to a new
value. To do what you want, you need to create a mutable value that
can be updated. You could code a MutableInt class wrapping 'int', or
you could use a dictionary to hold the values and then always refer to
the values using the dictionary. There are a few other ways to do it.
Hope that elucidates it for you somewhat. Then again I am a little
short on sleep :)
Cheers,
Chris
--
Follow the path of the Iguana...
http://rebertia.com
Ross.
--
http://mail.python.org/mailman/listinfo/python-list
--
http://mail.python.org/mailman/listinfo/python-list
Re: How to emit UTF-8 from console mode?
Make sure you are using the Lucida Console font for the cmd.exe window and type the commands: chcp 1251 python -c print ''.join(unichr(i) for i in range(0x410,0x431)) Output: ? Wowa! I was not aware of that chcp command! Thanks! How could I do that chcp 1251 programatically? The code was a little confusing because those two apostrophes look like a double quote! But what are we doing here? Can you convince me that we are emitting UTF-8? I need UTF-8 because I need to experiment with some OS function calls that give me UTF-16 and I need to emit UTF-16 or UTF-8. I think part of the problem is that Lucida Console is not as capable as Arial Unicode MS or the fonts used by urxvt-X. Thanks, Siegfried -- http://mail.python.org/mailman/listinfo/python-list
Re: change line with columns when print
On Oct 1, 1:13 pm, D'Arcy J.M. Cain [EMAIL PROTECTED] wrote: On Wed, 1 Oct 2008 04:43:34 -0700 (PDT) sandric ionut [EMAIL PROTECTED] wrote: Hello: I have a text file that looks like: 0 23 1 342 3 31 and I want to read the file and print it out like: 0 1 3 23 342 31 How can I do this? Probably tons of ways. Here's one with no input checking. L = [x.strip().split() for x in open(infile) if x] for i in range(2): print ' '.join([x[i] for x in L]) Here's another way: rows = [line.strip().split() for line in open(infile) if line] columns = zip(*rows) for col in columns: print .join(col) -- http://mail.python.org/mailman/listinfo/python-list
How to give a global variable to a function which is in a module?
Hi, I would like to declare a global variable, which is seen to a particular function. If I do as the following it works: x = 1 def test(): global x print x return 1 However, it does not helps since my function is in a separate file. In other words I have a main program which has the following structure: from test import test x = 1 y = test() and I have a test.py file which contains the test function: def test(): global x print x return 1 In this case the test does not see the global variable x. How can I make the x to be visible? Thank you. -- http://mail.python.org/mailman/listinfo/python-list
Re: indirectly addressing vars in Python
Chris Rebert a écrit :
On Wed, Oct 1, 2008 at 7:53 AM, Ross [EMAIL PROTECTED] wrote:
Forgive my newbieness - I want to refer to some variables and indirectly
alter them. Not sure if this is as easy in Python as it is in C.
Say I have three vars: oats, corn, barley
I add them to a list: myList[{oats}, {peas}, {barley}]
You mean:
myList = [oats, peas, barley]
And you're not adding *variables* to a list, you're adding *values*
s/values/references to objects/, actually
(snip)
--
http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
On Oct 1, 4:12 pm, Thomas Guettler [EMAIL PROTECTED] wrote: Please explain what you want to do. I'm primarily looking for alternatives to MVC frameworks for web development, particularly SAAS. I've looked around, and some whitepapers suggest that event-based frameworks often perform better than MVC. Since I'm looking at SAAS, having a view is pretty pointless since I'll either be using Thrift, returning simple HTTP headers, or returning some sort of JSON/YAML/XML content (possibly based on accept headers). -- http://mail.python.org/mailman/listinfo/python-list
Re: How to give a global variable to a function which is in a module?
Kurda Yon a écrit : Hi, I would like to declare a global variable, which is seen to a particular function. First point : there's no real 'global' scope in Python. 'global' really means 'module-level'. Second point : globals are Bad(tm) anyway. If I do as the following it works: x = 1 def test(): global x print x return 1 You don't even need the global statement here, since you're not rebinding x within the function. However, it does not helps since my function is in a separate file. In other words I have a main program which has the following structure: from test import test x = 1 y = test() That's obviously something you *don't* want - functions depending on global variables that can be changed from anywhere. Ok, like any golden rule, this one is meant to be bypassed sometimes, but unless you fully understand why this is 99 times out of 100 a BadThing(tm) to do, just don't do it. for the record, this would work: import test test.x = 42 y = test() But once again : unless you really know what you're doing and why you're doing it, just don't do it. and I have a test.py file which contains the test function: def test(): global x print x return 1 In this case the test does not see the global variable x. How can I make the x to be visible? Pass it to the function. # test.py def test(x): print x return x + 42 # main.py from test import test y = test(2) -- http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
Phillip B Oldham a écrit : On Oct 1, 4:12 pm, Thomas Guettler [EMAIL PROTECTED] wrote: Please explain what you want to do. I'm primarily looking for alternatives to MVC frameworks for web development, particularly SAAS. I've looked around, and some whitepapers suggest that event-based frameworks often perform better than MVC. Since I'm looking at SAAS, having a view is pretty pointless since I'll either be using Thrift, returning simple HTTP headers, or returning some sort of JSON/YAML/XML content (possibly based on accept headers). view doesn't imply (x)html - any valid HTTP response is ok. The whole point of decoupling controler from view (in web MVC) is to allow the same controler to return different views. -- http://mail.python.org/mailman/listinfo/python-list
Re: indirectly addressing vars in Python
On Wed, 01 Oct 2008 10:53:08 -0400, Ross wrote:
Forgive my newbieness - I want to refer to some variables and indirectly
alter them. Not sure if this is as easy in Python as it is in C.
Say I have three vars: oats, corn, barley
I add them to a list: myList[{oats}, {peas}, {barley}]
Then I want to past that list around and alter one of those values. That
is I want to increment the value of corn:
myList[1] = myList[1] + 1
Is there some means to do that?. Here's my little session trying to
figure this out:
oats = 1
peas = 6
myList=[]
myList
[]
myList.append(oats)
myList
[1]
myList.append(peas)
myList
[1, 6]
myList[1]= myList[1]+1
myList
[1, 7]
peas
6
So I don't seem to change the value of peas as I wished. I'm passing
the values of the vars into the list, not the vars themselves, as I
would like.
Your guidance appreciated...
Ross.
Short answer: Python is not C.
Long answer: In python, integers are immutable (they do not change), i.e.
if you do:
a = 1
b = 2
c = a + b
a + b creates a new integer object that has the value 3 and assign it to c
Other examples of immutable values are: number types, string, tuple, etc.
In python, variable is usually called name. The concept of variable
and name is slightly different.
In C, a variable contains an object. In python, a name contains a pointer
to an object. (the term pointer is used a bit loosely here)
In python, a list is a list of pointers to objects.
i.e.:
|-- Hello World
myList |-- 1
|-- 6
when you do, for example, myList[2] + 1
what you're doing is:
1. fetch the value of myList[2] (i.e. 6)
2. do an arithmetic addition of 6 + 1
3. create a new integer object with value 7
4. bind myList[2] to that new integer object (_new integer object_ since
integer is immutable, you cannot change its value[1])
in short, pea is left intact since pea points to integer object 6.
beware though, that things are different if myList[2] is a mutable value
instead and the operation is an in-place operation, e.g. list.sort
a = [1, 2]
b = [3, 2]
myList.append(a)
myList.append(b)
myList[1].sort()
myList
[[1, 2], [2, 3]]
b
[2, 3]
in this case a, b is mutable object, so:
myList.append(x) binds myList to the list object pointed by x
myList[1].sort() is an in-place sort to the list object [3, 2] (i.e. it
mutates the list [3, 2] instead of creating a new list[1]).
in this case:
myList |-- [1, 2]
|-- [3, 2]
myList[1].sort(), being an in-place sort, modifies the list object [3, 2]
in-place. Since b points to the same list object, b's list is changed too.
To summarize, you don't usually use that line of thinking in python. If
you really insists, though is not pythonic (and is really absurd anyway),
you may use this:
a = [1]
b = [2]
myList.append(a)
myList.append(b)
myList[1][0] = myList[1][0] + 1
myList
[[1], [2]]
b
[3]
[1] Well, not always though, in CPython (the standard python reference
implementation), small immutable values are cached as speed optimization.
This is a safe operation, except for identity testing. But that doesn't
matter much, since identity testing of immutable is moot.
[2] If you want a sorting operation that returns a new list, use sorted
(list)
--
http://mail.python.org/mailman/listinfo/python-list
string concatenate
Hi: I have the following situation: nameAll = [] for i in range(1,10,1): n = name + str([i]) nameAll += n print nameAll I get: ['n', 'a', 'm', 'e', '[', '1', ']', 'n', 'a', 'm', 'e', '[', '2', ']', 'n', 'a', 'm', 'e', '[', '3', ']', 'n', 'a', 'm', 'e', '[', '4', ']', 'n', 'a', 'm', 'e', '[', '5', ']', 'n', 'a', 'm', 'e', '[', '6', ']', 'n', 'a', 'm', 'e', '[', '7', ']', 'n', 'a', 'm', 'e', '[', '8', ']', 'n', 'a', 'm', 'e', '[', '9', ']'] but I would like to have it as: name1 name2 name3 ...name10 How can I do it? Thank you, Ionut -- http://mail.python.org/mailman/listinfo/python-list
Re: string concatenate
On Oct 1, 2008, at 12:41 PM, sandric ionut wrote: Hi: I have the following situation: nameAll = [] for i in range(1,10,1): n = name + str([i]) nameAll += n print nameAll I get: ['n', 'a', 'm', 'e', '[', '1', ']', 'n', 'a', 'm', 'e', '[', '2', ']', 'n', 'a', 'm', 'e', '[', '3', ']', 'n', 'a', 'm', 'e', '[', '4', ']', 'n', 'a', 'm', 'e', '[', '5', ']', 'n', 'a', 'm', 'e', '[', '6', ']', 'n', 'a', 'm', 'e', '[', '7', ']', 'n', 'a', 'm', 'e', '[', '8', ']', 'n', 'a', 'm', 'e', '[', '9', ']'] but I would like to have it as: name1 name2 name3 ...name10 How can I do it? Thank you, Ionut nameAll = [] for i in xrange(1,10,1): n = name + str(i) nameAll.append(n) print nameAll ['name1', 'name2', 'name3', 'name4', 'name5', 'name6', 'name7', 'name8', 'name9'] list.append() is the right tool for adding new elements to a list. Cheers Tommy -- http://mail.python.org/mailman/listinfo/python-list
Fwd: string concatenate
On Oct 1, 2008, at 12:41 PM, sandric ionut wrote: Hi: I have the following situation: nameAll = [] for i in range(1,10,1): n = name + str([i]) nameAll += n print nameAll I get: ['n', 'a', 'm', 'e', '[', '1', ']', 'n', 'a', 'm', 'e', '[', '2', ']', 'n', 'a', 'm', 'e', '[', '3', ']', 'n', 'a', 'm', 'e', '[', '4', ']', 'n', 'a', 'm', 'e', '[', '5', ']', 'n', 'a', 'm', 'e', '[', '6', ']', 'n', 'a', 'm', 'e', '[', '7', ']', 'n', 'a', 'm', 'e', '[', '8', ']', 'n', 'a', 'm', 'e', '[', '9', ']'] but I would like to have it as: name1 name2 name3 ...name10 How can I do it? Thank you, Ionut nameAll = [] for i in xrange(1,10,1): n = name + str(i) nameAll.append(n) print nameAll ['name1', 'name2', 'name3', 'name4', 'name5', 'name6', 'name7', 'name8', 'name9'] list.append() is the right tool for adding new elements to a list. Cheers Tommy -- http://mail.python.org/mailman/listinfo/python-list
Re: text file
On Wed, 01 Oct 2008 07:19:44 -0700, yqyq22 wrote:
My problem is how to translate this vbs in python:
Dim fso
Dim strComputer
Set fso = CreateObject(Scripting.FileSystemObject) Set ElencoPC =
fso.OpenTextFile(elencoPC.txt , 1, False) Do Until
ElencoPC.AtEndOfStream
strComputer = ElencoPC.ReadLine
thanks
try this:
fso = open('elencoPC.txt', 'r')
for line in f:
strComputer = line
--
http://mail.python.org/mailman/listinfo/python-list
Re: text file
[EMAIL PROTECTED] wrote: HI all, i have some problem with the code belove, i have a list of servers in a textfile (elencopc.txt) i would to retrieve informations via WMI ( cicle for ), but i don't understand if the code is correct: Try this, using http://timgolden.me.uk/python/wmi.html : code import wmi # # For the test to work # open (elencopc.txt, w).write (localhost) for server in open (elencopc.txt).read ().splitlines (): c = wmi.WMI (server) print SERVER:, server for item in c.Win32_QuickFixEngineering (): print item # or print item.Caption, etc. print print /code If you get RPC Server unavailable, it usually means that the WMI service isn't running on that machine. Usually. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: string concatenate
On Wed, 1 Oct 2008 09:41:57 -0700 (PDT) sandric ionut [EMAIL PROTECTED] wrote: Hi: I have the following situation: nameAll = [] for i in range(1,10,1): n = name + str([i]) nameAll += n print nameAll I get: ['n', 'a', 'm', 'e', '[', '1', ']', 'n', 'a', 'm', 'e', '[', '2', ']', 'n', 'a', 'm', 'e', '[', '3', ']', 'n', 'a', 'm', 'e', '[', '4', ']', 'n', 'a', 'm', 'e', '[', '5', ']', 'n', 'a', 'm', 'e', '[', '6', ']', 'n', 'a', 'm', 'e', '[', '7', ']', 'n', 'a', 'm', 'e', '[', '8', ']', 'n', 'a', 'm', 'e', '[', '9', ']'] but I would like to have it as: name1 name2 name3 ...name10 nameAll = [name%d % x for x in range(1,10,1)] -- D'Arcy J.M. Cain [EMAIL PROTECTED] | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
decent interactive python shell on MS Windows?
Hi everyone, After having used Python on Linux for some time, I now have to do Python coding on Windows. I am big fan of the interactive Python shell to test, eg, regexps. Is there an interactive Python shell on Windows that supports: - easy copy-pasting to/from an editor? (as opposed to the cumbersome mark, copy and then paste sequence that any terminal on Windows seems forced to adopt) - readline-like command history (up/down for previous/next command, Ctr-R for searching, etc) ? I have tried the python.org shell (difficult copy-pasting), ActiveState's (no readline command history) and iPython (difficult copy-pasting). Do you know of any decent interactive python shell on Windows that comes close to the friendliness of the standard one on Linux? Thanks in advance James -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: string concatenate
Thank you: but I would like to have them not like: ['name1', 'name2', 'name3', 'name4', 'name5', 'name6', 'name7', 'name8', 'name9'] but like name1 name2 name3 name4 name5 name6 name7 name8 name9 Is it possible? Ionut - Original Message From: Tommy Grav [EMAIL PROTECTED] To: Python List python-list@python.org Sent: Wednesday, October 1, 2008 7:50:25 PM Subject: Fwd: string concatenate On Oct 1, 2008, at 12:41 PM, sandric ionut wrote: Hi: I have the following situation: nameAll = [] for i in range(1,10,1): n = name + str([i]) nameAll += n print nameAll I get: ['n', 'a', 'm', 'e', '[', '1', ']', 'n', 'a', 'm', 'e', '[', '2', ']', 'n', 'a', 'm', 'e', '[', '3', ']', 'n', 'a', 'm', 'e', '[', '4', ']', 'n', 'a', 'm', 'e', '[', '5', ']', 'n', 'a', 'm', 'e', '[', '6', ']', 'n', 'a', 'm', 'e', '[', '7', ']', 'n', 'a', 'm', 'e', '[', '8', ']', 'n', 'a', 'm', 'e', '[', '9', ']'] but I would like to have it as: name1 name2 name3 ...name10 How can I do it? Thank you, Ionut nameAll = [] for i in xrange(1,10,1): n = name + str(i) nameAll.append(n) print nameAll ['name1', 'name2', 'name3', 'name4', 'name5', 'name6', 'name7', 'name8', 'name9'] list.append() is the right tool for adding new elements to a list. Cheers Tommy -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: decent interactive python shell on MS Windows?
[EMAIL PROTECTED] wrote: Is there an interactive Python shell on Windows that supports: - easy copy-pasting to/from an editor? (as opposed to the cumbersome mark, copy and then paste sequence that any terminal on Windows seems forced to adopt) - readline-like command history (up/down for previous/next command, Ctr-R for searching, etc) ? Yes. The Windows command shell does all these things. To do use mouse selecting and right-click pasting, go to the System Menu on your console and select Properties Options Quick Edit Mode. You can then use the mouse to select an area (as though on notepad) and Enter to select. Likewise, already-selected text can be right-click pasted straight in. I use this whenever I'm posting code-samples to this list: I work them up in a console, select-copy them out, paste them into an email, then select-copy them back and paste into a new console to make sure I haven't made any assumptions. Check out the use of up/down arrows as usual, plus F7 for history and F8 for history-completion. It's not everyone's cup of tea but I've been using it happily for years. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: decent interactive python shell on MS Windows?
[EMAIL PROTECTED] wrote: Hi everyone, After having used Python on Linux for some time, I now have to do Python coding on Windows. I am big fan of the interactive Python shell to test, eg, regexps. Is there an interactive Python shell on Windows that supports: - easy copy-pasting to/from an editor? (as opposed to the cumbersome mark, copy and then paste sequence that any terminal on Windows seems forced to adopt) - readline-like command history (up/down for previous/next command, Ctr-R for searching, etc) ? I have tried the python.org shell (difficult copy-pasting), ActiveState's (no readline command history) and iPython (difficult copy-pasting). Do you know of any decent interactive python shell on Windows that comes close to the friendliness of the standard one on Linux? Thanks in advance James -- http://mail.python.org/mailman/listinfo/python-list I use a window's port of rxvt running cygwin's bash shell. Bash gives you all the command-history readline like capabilities, and the rxvt window implements all the cut/past mouse actions you're used to from Linux/Unix terminal windows. Together, these make windows feel almost civilized. Happy Googling for them, Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
Re: Fwd: string concatenate
On Wed, 1 Oct 2008 10:03:50 -0700 (PDT) sandric ionut [EMAIL PROTECTED] wrote: Thank you: but I would like to have them not like: ['name1', 'name2', 'name3', 'name4', 'name5', 'name6', 'name7', 'name8', 'name9'] but like name1 name2 name3 name4 name5 name6 name7 name8 name9 Slight mod from my previous suggestion then. nameAll = ' '.join([name%d % x for x in range(1,10,1)]) Have you gone through the tutorial yet? -- D'Arcy J.M. Cain [EMAIL PROTECTED] | Democracy is three wolves http://www.druid.net/darcy/| and a sheep voting on +1 416 425 1212 (DoD#0082)(eNTP) | what's for dinner. -- http://mail.python.org/mailman/listinfo/python-list
Re: Peek inside iterator (is there a PEP about this?)
Luis Zarrabeitia wrote: For most use cases I think about, the iterator protocol is more than enough. However, on a few cases, I've needed some ugly hacks. Ex 1: a = iter([1,2,3,4,5]) # assume you got the iterator from a function and b = iter([1,2,3]) # these two are just examples. Can you provide a concrete use case? then, zip(a,b) has a different side effect from zip(b,a) After the excecution, in the first case, iterator a contains just [5], on the second, it contains [4,5]. I think the second one is correct (the 5 was never used, after all). I tried to implement my 'own' zip, but there is no way to know the length of the iterator (obviously), and there is also no way to 'rewind' a value after calling 'next'. Ex 2: Will this iterator yield any value? Like with most iterables, a construct if iterator: # do something I don't think this has a chance. By adding a __len__ to some iterators R. Hettinger once managed to break GvR's code. The BDFL was not amused. would be a very convenient thing to have, instead of wrapping a 'next' call on a try...except and consuming the first item. Ex 3: if any(iterator): # do something ... but the first true value was already consumed and # cannot be reused. Any cannot peek inside the iterator without # consuming the value. for item in iflter(bool, iterator): # do something break is not that bad. Instead, i1, i2 = tee(iterator) if any(i1): # do something with i2 Question/Proposal: Has there been any PEP regarding the problem of 'peeking' inside an iterator? Knowing if the iteration will end or not, and/or accessing the next value, without consuming it? Is there any (simple, elegant) way around it? Personally I think that Python's choice of EAFP over LBYL is a good one, but one that cannot easily be reconciled with having peekable iterators. If I were in charge I'd rather simplify the iterator protocol (scrap send() and yield expressions) than making it more complex. Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: Peek inside iterator (is there a PEP about this?)
On Wed, 01 Oct 2008 10:46:33 -0400, Luis Zarrabeitia wrote: Hi there. For most use cases I think about, the iterator protocol is more than enough. However, on a few cases, I've needed some ugly hacks. Ex 1: a = iter([1,2,3,4,5]) # assume you got the iterator from a function and b = iter([1,2,3]) # these two are just examples. then, zip(a,b) has a different side effect from zip(b,a) After the excecution, in the first case, iterator a contains just [5], on the second, it contains [4,5]. I think the second one is correct (the 5 was never used, after all). I tried to implement my 'own' zip, but there is no way to know the length of the iterator (obviously), and there is also no way to 'rewind' a value after calling 'next'. Ex 2: Will this iterator yield any value? Like with most iterables, a construct if iterator: # do something would be a very convenient thing to have, instead of wrapping a 'next' call on a try...except and consuming the first item. Ex 3: if any(iterator): # do something ... but the first true value was already consumed and # cannot be reused. Any cannot peek inside the iterator without # consuming the value. Instead, i1, i2 = tee(iterator) if any(i1): # do something with i2 Question/Proposal: Has there been any PEP regarding the problem of 'peeking' inside an iterator? No (or I'm not aware of any). Why? Because for some iterable, it is not possible to know in advance its length (video data stream, for example), or whether it'd ever end (the digits of pi). Second, in python, iterator is a use-once object, it is not designed to be reused. Some languages, especially the purely functional ones, allow multiple use of iterator because they guarantee immutability, python allows mutable object, and is unable to provide that. Knowing if the iteration will end or not, and/or accessing the next value, without consuming it? No, it is not possible to do that for some iterators. For example, this code: import time class Iterable(object): def __iter__(self): return self def next(self): return time.time() if you peeked the iterator in advance, the result would be different compared to the result when you actually need it. Is there any (simple, elegant) way around it? Simple, but probably not that elegant, if you need such a fine control, use while loop. Cheers, -- Luis Zarrabeitia (aka Kyrie) Fac. de Matemática y Computación, UH. http://profesores.matcom.uh.cu/~kyrie -- http://mail.python.org/mailman/listinfo/python-list
Re: Isolated environment for execfile
On Wed, 01 Oct 2008 11:11:29 +, Igor Kaplan wrote:
Hello python gurus.
I got quite unusual problem and all my searches to find the answer on
my
own were not successful.
Here is the scenario:
I have the python program, let's call it script1.py, this program
needs to
execute another python script, let's call it script2.py.
In script1.py I have the statement:
execfile('script2.py')
Everything is fine beside one thing. The script2.py is pretty big
python
program which does a lot of things and also while runs, it modifies many
variables and module members, such for example as sys.path. So when
script2.py exits all changes which it does are visible in my main
program, script1.py. Even more, I need to execute script2.py in loop,
several times during script1.py session. And all changes, which
script2.py does just accumulate.
I wander, is there any way to execute script2.py in it's own
environment,
so when script2.py exits, all modifications, which it is done in global
modules are gone?
Ideally I would love to have the following.
(snip)
Thanks in advance.
Igor.
I smelled a really strong sign of bad code.
1. In python, functional style programming is very much preferred. In
short, functional style programming requires that: a function never makes
a side-effect (python doesn't enforce this[1] as python is not a pure
functional language).
2. In any programming language, the use of global variable must be
minimized, and modifying global is even more frowned upon.
Aside:
If you need an isolated environment, it is probably much better if you
use class. Each instance of a class lives separately, independent to each
other.
e.g.:
class Test(object):
def func(self, n):
self.n = n
a = Test()
b = Test()
a.func(10)
b.func(20)
print a.n # 10
print b.n # 20
[1] in fact, many built-in standard library do use side-effects, and OOP-
style programming (more appropriately Java-style OOP) relies heavily on
side-effect.
--
http://mail.python.org/mailman/listinfo/python-list
Re: what does python -i use as input stream (stdin)?
Hello again, I wanted to give your solution a try, but got stuck. The file that I want to replace the standard input with is a pseudo file object with a custom read method. I have a hard time finding out how to have a file descriptor (or fileno) associated with it. I tried inheriting from the file class (using a dummy file on disk), and then overriding the read() and __init__() method. To test I used os.read(my_file_no,1), but it reads the contents of my dummy file rather than using my read method. So obviously it does some low level stuff there... Again I have the feeling this is impossible, but I thought that the last time too :) Almar 2008/9/30 Almar Klein [EMAIL PROTECTED] Wow, it's that easy... thanks! 2008/9/29 Gabriel Genellina [EMAIL PROTECTED] En Fri, 26 Sep 2008 04:29:42 -0300, Almar Klein [EMAIL PROTECTED] escribió: I would still like to hear if anyone knows how I can change the input stream that is used when running python -i, but I would not be surprised if it is impossible... Sure you can. You have to replace the file descriptor 0, that is, standard input; sys.stdin reads from there. The standard way is to use os.dup2: c:\temptype foo.txt This line read from foo.txt c:\temptype redirect.py import os inp = open(foo.txt,r) os.dup2(inp.fileno(), 0) print raw_input-, raw_input() c:\temppython redirect.py raw_input- This line read from foo.txt This is not -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: parse a normal textfile
On Wed, 01 Oct 2008 14:09:09 +0200, Tino Wildenhain wrote:
devi thapa wrote:
hi all
I have one normal text file. I need to parse the file, that
too in an associative way .
suppose that below is the normal textfile
name='adf'
id =1
value=344
there are many approaches to config files. But in your special example,
it looks like a simplified mapping, so
parsed=eval(dict(%s) % ,.join(line
for line
in file(textfile)
if line.strip()
)
)
parsed['name']
'adf'
but of course eval() is dangerous, so feel free to explore more then
this one solution.
Regards
Tino
There is no need to use eval on that, you could just use:
f = open('file.conf')
conf = {}
for line in f:
key, value = line.split('=', 1)
conf[key] = value
a bit more obscure:
conf = dict(line.split('=', 1) for line in open('file.conf'))
--
http://mail.python.org/mailman/listinfo/python-list
ANN: eGenix mxODBC Connect Database Interface for Python 0.9.2 (beta)
ANNOUNCING eGenix.com mxODBC Connect Database Interface for Python Version 0.9.2 (beta) Our new client-server product for connecting Python applications to relational databases - from all major platforms This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-Connect-0.9.2-beta.html INTRODUCTION The mxODBC Connect Database Interface for Python allows users to easily connect Python applications to all major databases on the market today in a highly portable and convenient way. Unlike our mxODBC Python extension, mxODBC Connect is designed as client-server application, so you no longer need to find production quality ODBC drivers for all the platforms you target with your Python application. Instead you use an easy to install Python client library which connects directly to the mxODBC Connect database server over the network. This makes mxODBC Connect the ideal basis for writing cross-platform database programs and utilities in Python, especially if you run applications that need to communicate with databases such as MS SQL Server, Oracle or DB2 that run on Windows or Linux machines. By removing the need to install and configure ODBC drivers on the client side, mxODBC Connect greatly simplifies setup and configuration of database driven client applications, while at the same time making the network communication between client and database server more efficient and more secure. For more information, please have a look at the product page: http://www.egenix.com/products/python/mxODBCConnect/ * About Python: Python is an object-oriented Open Source programming language which runs on all modern platforms (http://www.python.org/). By integrating ease-of-use, clarity in coding, enterprise application connectivity and rapid application design, Python establishes an ideal programming platform for todays IT challenges. * About eGenix: eGenix is a consulting and software product company focused on providing professional quality services and products to Python users and developers (http://www.egenix.com/). NEWS mxODBC Connect 0.9.2 is our second public beta release of the new mxODBC Connect product. It comes with improved documentation, enhanced SQL Server support on Linux and now runs on Python 2.6 as well (in addition to Python 2.3, 2.4 and 2.5). *SPECIAL OFFER* If you would like to participate in the beta as tester, please see our beta program page: http://www.egenix.com/products/python/mxODBCConnect/beta.html In order to make participation in the beta program more interesting for our users, we will be giving out *free discount coupons* to all participants who report back bugs in the product. DOWNLOADS The download archives as well as instructions for installation and configuration of the product can be found on the product page: http://www.egenix.com/products/python/mxODBCConnect/ ___ SUPPORT Commercial support for this product is available from eGenix.com. Please see http://www.egenix.com/services/support/ for details about our support offerings. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Oct 01 2008) Python/Zope Consulting and Support ...http://www.egenix.com/ mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ mxODBC, mxDateTime, mxTextTools ...http://python.egenix.com/ Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 -- http://mail.python.org/mailman/listinfo/python-list
Re: Event-driven framework (other than Twisted)?
On Wed, 01 Oct 2008 18:09:20 +0200, Bruno Desthuilliers wrote: Phillip B Oldham a écrit : On Oct 1, 4:12 pm, Thomas Guettler [EMAIL PROTECTED] wrote: Please explain what you want to do. I'm primarily looking for alternatives to MVC frameworks for web development, particularly SAAS. I've looked around, and some whitepapers suggest that event-based frameworks often perform better than MVC. Since I'm looking at SAAS, having a view is pretty pointless since I'll either be using Thrift, returning simple HTTP headers, or returning some sort of JSON/YAML/XML content (possibly based on accept headers). view doesn't imply (x)html - any valid HTTP response is ok. The whole point of decoupling controler from view (in web MVC) is to allow the same controler to return different views. In fact, MVC and event-driven is two entirely different concept. You can have both, or none. It is, in the end, your choice which one to use or whether you want to use both or none. Event-driven programming is a concept that your programs are entirely composed of function definition and binding that function definition to events. The rest is handled by a mainloop, which calls the appropriate functions when it receives something. MVC is a separation of concern. In MVC code you want that there is a clear boundary between code that handles Model, View, and Controller, so it'd be easier to manage the code. -- http://mail.python.org/mailman/listinfo/python-list
Re: problem with ImportError: No module named... and sockets
On Sep 30, 5:49 pm, Gabriel Genellina [EMAIL PROTECTED] wrote: En Tue, 30 Sep 2008 19:44:51 -0300, Daniel [EMAIL PROTECTED] escribió: On Sep 30, 4:17 pm, Gabriel Genellina [EMAIL PROTECTED] wrote: En Tue, 30 Sep 2008 18:38:19 -0300, Daniel [EMAIL PROTECTED] escribió: [BEGIN CODE] #!/usr/bin/python import SocketServer import os, sys newpath = os.path.normpath( os.path.join( __file__, ../../.. )) sys.path.insert(0, newpath) from pop.command.UpdateCommand import * import cPickle Traceback (most recent call last): [...] ImportError: No module named UpdateCommand I import the module at the top of the file server.py, but it doesn't throw the ImportError until it tries to unpickle. Notice that you don't import the UpdateCommand module - you import all names defined inside it instead. It's not the same thing. Seehttp://effbot.org/zone/import-confusion.htm -- Gabriel Genellina Thank you Gabriel, The class inside that module has the same name, UpdateCommand. Since this is the object that was pickled, it should be available to the unpickle command. I already understood the difference between import methods and I think I'm covered. I did just try import pop.command.TesterUpdateCommand instead and I get the same error. (TesterUpdateCommand != UpdateCommand...) In your *pickling* code, just before pickling the object, see what you get from this: cls = obj.__class__ print cls.__module__ print cls.__name__ Suppose you get SomeModuleName and SomeClassName. Then, in your *unpickling* environment, this must succeed: import SomeModuleName cls = SomeModuleName.SomeClassName If not, you should rearrange things (on both sides, probably) to make the reference work. This is basically what pickle does. Looks like the module lives in a package - make sure you import the *package* both when pickling and unpickling. The sys.path manipulation looks suspicious. -- Gabriel Genellina This turned out to be a problem with PyScripter. When I open the same files in Komodo they work fine. Sorry for the trouble. -- http://mail.python.org/mailman/listinfo/python-list
