Mailman 3 May 2008 - Tkinter-discuss

Possibly n00bish question about ImageTk
by Barnesdesdes Feb. 10, 2009

Feb. 10, 2009

I've been trying to make a program which will import a png file and display it inside a frame. It actually works when I just run the code, but if I try to abstract the exact same code into a function, it fails. In the code below, if I just run it, it works. However, if I comment out the lines between "root=Tkinter.Tk()" and "moo(root)" and comment in "moo(root)", it no longer works. Instead of displaying the image, it just displays a gray frame of the correct size. Does anyone have any insights about what I'm doing wrong? import Image, ImageTk, Tkinter def moo(master): img = Image.open('plotfig.png') f = Tkinter.Frame(master, width=800, height=600) pi = ImageTk.PhotoImage(img) t = Tkinter.Label(f, image=pi) f.pack() t.place(x=0, y=0, width=800, height=600) t.pack() root = Tkinter.Tk() img = Image.open('plotfig.png') f = Tkinter.Frame(root, width=800, height=600) pi = ImageTk.PhotoImage(img) t = Tkinter.Label(f, image=pi) f.pack() t.place(x=0, y=0, width=800, height=600) t.pack() #moo(root) root.mainloop() Thanks very much. Alan -- View this message in context: http://www.nabble.com/Possibly-n00bish-question-about-ImageTk-tf3990201.htm… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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[ANN] Ttk wrapper 0.0.9
by Guilherme Polo June 8, 2008

June 8, 2008

Hello, Over the last weeks I've been doing a ttk wrapper as part of my GSoC project and now I feel that I can announce it in hope some people start using it. What is Ttk ? This wrapper provides classes to allow using the Tk themed widget set, which has been included in Tk 8.5 but can be used with earlier versions if you have Tile installed. Ttk is based on a revised and enhanced version of TIP #48 (http://tip.tcl.tk/48) specified style engine. Its basic idea is to separate, to the extent possible, the code implementing a widget's behavior from the code implementing its appearance. Widget class bindings are primarily responsible for maintaining the widget state and invoking callbacks, all aspects of the widgets appearance lies at Themes. Wrapper status I expect all the Ttk functionality to be available through this wrapper, but I have said this some days ago as well and found out some examples which failed to work and then I corrected the code. I guess I will only be 100% sure of this after people start using it and reporting problems, if there is some interest on this I can create a project at code.google.com to serve this purpose. The wrapper comes with some samples and documentation too, which can be improved a lot too, specially if people fail to use the wrapper, try to use the docs and fail again and then report how they failed. Getting it Right now you have to use svn to download the wrapper: svn co http://svn.python.org/projects/sandbox/trunk/ttk-gsoc Alternatively, for Python 2.x you can download this file (access the link and click on download): http://svn.python.org/view/sandbox/trunk/ttk-gsoc/Lib/lib-tk/Ttk.py?rev=632… Also, there is a site with some info regarding this project at: http://gpolo.ath.cx:81/projects/ttk_to_tkinter/ Regards, -- -- Guilherme H. Polo Goncalves

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How to get all the variables in a python shell
by ri＠eeda.denso.co.jp May 29, 2008

May 29, 2008

Hi! I'm currently working on a scientific computation software built in python. What I want to implement is a Matlab style command window <-> workspace interaction. For example, you type 'a=1' in the command window, and you see a list item named 'a' in the workspace. You double click the icon of the item, and you see its value. You can modify the value of the list item, 1 -> 100 etc, after which if you go back to the command window and type 'a' and press enter, you see that varable a's value has been changed to 100. So my question is : if you have two DOS command windows running under WINDOWS OS, how can you make them share the same internal variable buffer? Or is there any easier way to implemente such kind of interaction? I'm looking forward to your answers. Thanks in advance!

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tkinter "monitor" and root.mainloop()
by Marco May 26, 2008

May 26, 2008

Hi all, I am quite new to tkinter programming, and i have a question. I am writing a "monitor": basically it reads a file on the filesystem and reports it in a graphical way using python and tkinter. Now the file, over time, changes, so once called root.mainloop() i'd need to reread the file, update the objects in memory and redraw the tkinter main window. How can I achieve that? Ideas? Suggestions? Is my approach wrong? Thanks, marco

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how to get all the text from a text widget?
by Snakey May 15, 2008

May 15, 2008

I created a text widget to allow my users to enter some lines of text. Now I need to dump all the text contents into a string variable. How can i do that? -- View this message in context: http://www.nabble.com/how-to-get-all-the-text-from-a-text-widget--tp1705395… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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how to import a module that is not in the work dir?
by Snakey May 7, 2008

May 7, 2008

I have written some functions in "my_functions.py". I need to use these functions in another program main.py. But, "my_functions.py" cannot reside in my local work folder. It resides in a shared directory somewhere else eg. in X:\shared\my_functions.py How can I import my_functions.py into main.py? Will this work: ? import X:\shared\my_functions.py -- View this message in context: http://www.nabble.com/how-to-import-a-module-that-is-not-in-the-work-dir--t… Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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Listbox selection persistence
by leegold May 3, 2008

May 3, 2008

Hi, I guess there's something basic I need to know. Given the code below if I press the button and p and q is highlighted then close the window I get: Output: >>> dddd [] ('15', '16') dddd [] But the x does not seem to persist outside of the def selected() block. I want the final last button press to persist so I can use those indexes for further processing. What am I missing here? Thanks. import sys, string, Tkinter from Tkinter import * root=Tkinter.Tk() frame=Tkinter.Frame(root) listbox=Listbox(frame, height=27,selectmode=MULTIPLE, font=('courier', 12)) listbox.pack(side=LEFT,fill=BOTH, expand=1) choices=map(chr, range(97, 123)) for item in choices: listbox.insert(END, item) frame.pack(fill=BOTH, expand=1) def selected(): x = listbox.curselection() print x zz='dddd' btn = Button(root, text = "Click for values", command = selected) btn.pack() #test print zz print x root.mainloop() #test print zz print x

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