🌐 Mailman 3 March 2006 - Python-list - python.org

Pylint-like source code reformatter
by Brian L. Troutwine March 31, 2006

March 31, 2006

I've recently developed a need for a python source code re-formatter, ideally conforming to the sort of style that pylint enforces. I don't know of any, and my googling wasn't very productive. Does anyone know of anything? Stand-alone or vim based both work for me, though stand-alone would be preferable.

1 0

Tablelist 4.3
by Arne Meissner March 31, 2006

March 31, 2006

Hello everybody! I have downloaded the Tablelist 4.3 from http://www.nemethi.de/. Now I want to install it on my system Win XP. >From the distribution I have got the following information: " On Windows, use WinZip or some other program capable of unpacking the distribution file tablelist4_3.zip into the directory tablelist4.3, with the subdirectories demos, doc, and scripts. Note that the file tablelistEdit.tcl in the scripts directory is only needed for applications making use of interactive cell editing. Similarly, the file tablelistMove.tcl in the same directory is only required for scripts invoking the move or movecolumn command. Finally, the file tablelistThemes.tcl is only needed for applications using the package Tablelist_tile (see next section). Next, you should check the exact version number of your Tcl/Tk distribution, given by the tcl_patchLevel and tk_patchLevel variables. If you are using Tcl/Tk version 8.2.X, 8.3.0 - 8.3.2, or 8.4a1, then you should upgrade your Tcl/Tk distribution to a higher release. This is because a bug in these Tcl versions (fixed in Tcl 8.3.3 and 8.4a2) causes excessive memory use when calling info exists on non-existent array elements, and Tablelist makes a lot of invocations of this command. " But I don't know who to do it. I have copied the files to my python directory. By calling the package I get an error. Would somebody please so kind and explain me the installtion step by step. E.g. Where to copy the files?, Who can I obtain the tcl_patchLevel information?, How can I invoke the tableliste in a python programm. Thank you!

2 1

Re: Identifying filled circles in a scanned image
by Claudio Grondi March 31, 2006

March 31, 2006

Douglas Douglas wrote: > First of all. Thanks Claudio and nikie for your fast answers. > > What I want to do is process the forms automatically. Each circle match a > letter (like in a quiz). So if the user select option A in a row, he fills the > first circle. If he select option C in the next row, he fills the third circle > of that row. Get it? > > What I want is to write a script that takes the images and say: > Form 1: > Options Selected: A, B, C, A, B, C, A, D, E, A > Form 2: > Options Selected: B, B, B, A, A, A, C, D, E, A > .... > > I've read the PIL tutorial. I've processed images before using PIL (basic stuff > though). I thought about using the difference method of the ImageChops module. > It almost worked. The problem is that when the scanner takes the pages it > doesn't put it in the same exact position in its bed. There's not a lot of > difference, but there's a little. > > I also thought about drawing references in the forms (like a line or an X) I > could look for. > > I like to hear your comments now that I explained a little more. The in my eyes simplest solution is already proposed by Paul. There is a nice object detection (look for .find_objects in numarray docu) built-in into the numarray module you can use to search for the circles and other elements in your form. Check it out if you want to speed up detection of objects in the scan or areas of the scan of the form (use PILs .tostring() and numarray .fromstring() to pass the picture pixel data from PIL to numarray). Claudio > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com

1 0

logging producing redundant entries
by Jed Parsons March 31, 2006

March 31, 2006

Hi, I'm using the logging module for the first time. I'm using it from within Zope Extensions. My problem is that, for every event logged, the logger is producing multiple identical entries with the timestamp the same down to the millisecond. Is this something I'm doing wrong? Log snippet: 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons I would like only one of the above lines in my log file; not all those copies. I'm using this simple logging setup at the top of a zope Extension module: import logging # basicConfig for python 2.3 logging.basicConfig() _logger = logging.getLogger("login") _logger.setLevel(logging.DEBUG) _handler = logging.FileHandler(LOG_ROOT, 'login.log')) _formatter = logging.Formatter("%(asctime)s %(levelname)s: %(message)s") _handler.setFormatter(_formatter) _logger.addHandler(_handler) So these are global to the module. The log lines above were produced by what I expected would be a single call to _logger.info() in a function in the module: _logger.info("Login: %s %s" % (firstname, lastname)) Can anyone explain what I'm doing wrong? Many thanks, j -- Jed Parsons Industrial Light + Magic (415) 746-2974 grep(do{for(ord){(!$_&&print"$s\n")||(($O+=(($_-1)%6+1)and grep(vec($s,$O++,1)=1,1..int(($_-6*6-1)/6))))}},(split(//, "++,++2-27,280,481=1-7.1++2,800+++2,8310/1+4131+1++2,80\0. What!?")));

1 0

embed notepad into a frame widget
by Matt March 31, 2006

March 31, 2006

all, trying to load an application (notepad for instance) and have it sit inside a Python application window. When the main window maximises or minimises, the (notepad) app follows. I am pretty sure I need to use a frame widget under tkinter (win32) but not exactly sure how to do it. I can make the frame but not embed notepad. do I use something like this? from Tkinter import * master = Tk() frame = Frame(width=768, height=576, bg="", colormap="new") frame.pack() video.attach_window(frame.window_id()) <--- not sure!! mainloop() Thanks -Matt

2 2

Content Management System
by Water Cooler v2 March 31, 2006

March 31, 2006

I know what it is, and yet the knowledge of what a CMS is, is so vague that I find myself asking this question every now and then. I've googled and read the resources too. However, the knowledge is still not clear. It is so vague. Me: Just what is a content management system? Myself: A place where content can be stored. Me: OK. So, then what's a file system? Myself: That's not web-based. File-Systems are desktop-based. Me: You can have a file-system on a common network server. I can even have a network server and give remote access to people over a VPN. I can host content on a terminal server, I can give them VNC clients, or an RDP client, and let them browse what they want to. Myself: How will they know "where" to find what? Me: Come again? Myself: With all those avenues you mentioned, you won't publish content. There will not be a taxonomy. You will just be dumping files on another remote server. How will the users "find" what they want? So, is a CMS all about: 1. Taxonomy 2. Publishing content in a Web based format Me: What about binary objects that cannot be published in HTML? Myself: Yeah! What about them, dude? Use your head. What about them? Heard of a hyperlink? Heard of HTTP? FTP? No? Me: OK. I get it. But...I *still* don't get it, man. Why did we need this? More importantly, where are the boundaries? I believe CMS also lets users edit and publish content on-the-fly. So, again, where are the boundaries? What about non-public content? What about access rights? Do you have seperate users on CMS's having their seperate folders as well, where they could put their own private content? Or, is the idea behind CMS about "sharing" and so they put only that which they need to share and not the private stuff. Do CMS's also allow access rights or authorization levels *per* resource/file/unit of content that is uploaded on to them? Or, are they role-based - e.g all users of this group will be able to access all files, and users of that group will have read-only access to this website.

10 9

Re: Identifying filled circles in a scanned image
by Paul McGuire March 31, 2006

March 31, 2006

Douglas Douglas wrote: > The problem is that when the scanner takes the pages it > doesn't put it in the same exact position in its bed. There's not a lot of > difference, but there's a little. Your forms should have some reference registration marks or targets in opposite corners. Find these first, then you should be able to interpolate pixel positions from there, using a 2D trans/rotational transform. -- Paul

1 0

Re: Identifying filled circles in a scanned image
by nikie March 30, 2006

March 30, 2006

Douglas Douglas schrieb: > Hi everybody. > > I have a paper form that I scan into an image. My user fills some circles in > this paper form using black ink. Every form has ten rows with five circles each > and the user fills only one circle for each row. > > I was wondering if I could use the Python Imaging Library to process these > forms. I know the Image class is really powerful, but I can't think of a way of > how to locate wich circle was filled. > > Could anybody please give me an advice on this? Depends on how much time you have... Google for "Hough Transformation", or look it up in a text book on image processing. That's a very general method for finding lines and circles. If you know where the circles are, comparing the average grey value inside the circle with the average of the environment should tell you if it's filled or not.

2 1

Re: RELEASED Python 2.4.3, final.
by John Salerno March 30, 2006

March 30, 2006

Anthony Baxter wrote: > On behalf of the Python development team and the Python community, > I'm happy to announce the release of Python 2.4.3 (final). Thanks! > Assuming no major bugs pop up, the next release of Python will > be Python 2.5 (alpha 1), with a final 2.4.4 release of Python > shortly after the final version of Python 2.5. Why would 2.4.4 come out after the final release of 2.5?

4 3

Re: Doc suggestions (was: Why "class exceptions" are not deprecated?)
by rurpy＠yahoo.com March 30, 2006

March 30, 2006

"Terry Reedy" wrote: > <rurpy(a)yahoo.com> wrote in message > news:1143574346.354680.136060@i39g2000cwa.googlegroups.com... > > Fredrik Lundh wrote: > > But the perception I get here, from responses like yours, > > is that such suggestions are unwelcome, and unlikely > > to be acted upon. > > FL is not the main doc maintainer. Even if you were to be correct about > his views, premature generalization is the source of much error. Not sure how premature it is. I've been reading c.l.p. on and off for nearly a year. > > I gather corrections of factual > > errors are welcome, but stylistic, or organizational > > ones are not. And the latter kind of changes, applied > > extensively to all the docs, are what will make a big > > improvement. Difficult at best, but absolutely impossible > > if you and the other powers-that-be are happy with > > the status-quo. > > If you wish to become a volunteer Python improver, let me know either here > or privately and I will respond with a suggestion and an offer. Yes, please do. I'm sure it would be helpful, not only for me but for everyone dissatified with the current documentation and wanting to help, to hear your suggestion / offer.

1 0