Mailman 3 December 2007 - 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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how to maximize a window (beginner question!)
by Marcus Gnaß March 14, 2008

March 14, 2008

I like to know how I can maximize a window at program start. I haven't found any hint so far. Hope you can help me ... Marcus

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Shareware product using Tkinter
by Kevin Walzer Jan. 7, 2008

Jan. 7, 2008

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I know there is a lot of talk about Tkinter being an antiquated toolkit, unsuitable for commercial software development. However, I am using Tkinter in one of my shareware programs: http://www.codebykevin.com/packetstream.html (there's a screenshot) This application makes use of some recent advances in Tk development, including Tile (see http://tkinter.unpythonic.net/wiki/TileWrapper for the Python wrapper). It also makes use of some nice Tkinter widgets such as ToolTip (http://tkinter.unpythonic.net/wiki/ToolTip). If you pay attention to some of the specifics of the platform you are targeting (this app is for Mac OS X users) and to other points of application design, such as icons (I find the Tango set to be very polished and well-suited for the Mac; it doesn't scream "Linux"), then I think it's quite possible to make a nice, polished, professional-looking application with Tkinter. I'm curious if anyone has thought about gathering a listing of other Tkinter applications, commercial or otherwise, that are well-designed/attractive. Perhaps a screenshot page at the Tkinter wiki or elsewhere? - -- Kevin Walzer Code by Kevin http://www.codebykevin.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD4DBQFFntpOEsLm8HXyq4sRAuxMAJQOpHKZf9dGrxO/0F0UVIPMr8vZAJsGIHT9 pYgEgO+j2Q83GocIWWOzqA== =7aqI -----END PGP SIGNATURE-----

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redirecting Python stdout/stderr to a Tkinter text widget from an embedded Python application
by Bernard B Yoo Jan. 2, 2008

Jan. 2, 2008

Hi, I have a Python module that redirects stdout/stderr to a Tkinter text widget. When I run this from the Python interpreter, it behaves as I expect. When I run it from a Python batch file, it also behaves as expected. When I embed the module in a C program, the Tkinter text widget does not appear. Is there something special I must do in embedded Python programs to make Tkinter widgets appear? Bernard B. Yoo

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Entry Widget - Setting a Default Text
by Amit Finkler Dec. 31, 2007

Dec. 31, 2007

Hi, I'm building a GUI for my system using Tkinter. I created the following Entry and Label widgets: from Tkinter import * win = Tk() f2 = Frame(win, bd = 2, relief = 'groove') Lake_adr = StringVar() LakeAdr = Entry(f2, textvariable = Lake_adr) LakeAdrLabel = Label(f2, text = 'Lakeshore address') LakeAdr.grid(row = 1, column = 0) LakeAdrLabel.grid(row = 0, column = 0) f2.pack() What I want to do is to have a default value already appearing in this entry widget, which other functions can take using something like lake = int(LakeAdr.get()) and if I change the entry myself, these other functions, of course, will take the value I manually wrote. How do I do that? Thanks, Amit.

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Running Python 2.5 with Aqua Tcl/Tk 8.5.0
by Russell E. Owen Dec. 27, 2007

Dec. 27, 2007

If you would like to run Python 2.5 with Tcl/Tk 8.5.0... Kevin Waltzer was kind enough to send me a copy of his _tkinter.so and gave me permission to serve it. I just put it up here: <http://www.astro.washington.edu/rowen/python/tkinter_for_tcl8.5.zip> along with brief installation instructions. This saves the trouble of rebuilding Python to work with Tcl/Tk 8.5 and makes it fairly easy to switch back and forth. I have an application that makes very heavy use of Tcl/Tk. I have not tested it extensively yet but so far it seems to work just fine. I have found only two issues: * The index method of the Text widget returns a Tcl object instead of a string. That meant I had to change one line in my code to put str() around the value. Not bad! * The vertical spacing between widgets has grown a bit so my windows are taller. However, people on MacOS X 10.5 may see repeated error messages about threading in your log file. This seems to be a known issue but I am not aware of a solution (though it is possible that rebuilding Tcl/Tk with threading disabled would resolve it). Kevin and others can say more about this than I can -- I'm still on 10.4. -- Russell

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Re: [Tkinter-discuss] TkAqua question
by Kevin Walzer Dec. 22, 2007

Dec. 22, 2007

Michael O'Donnell wrote: > > I am a bit confused. Why should p2app look for Tcl and Tk anyway? > Would it not be up to the executable produced by py2app to look > for these? And wouldn't that be part of the code of Tkinter? py2app has various flags that you can set specifying what to include. If your app uses Tkinter, py2app by default looks for the Tcl/Tk frameworks and wraps those up into the final application bundle. > > If I package the tcl and tk frameworks using Py2app, then they > end up within my application, with a pathname relative to the > application. So how does Tkinter, when it runs within my application, > know where to find the frameworks? It has a set of default > locations to look I believe? Don't I need to tell it where to look? > By setting an environmental veriable or such? py2app executes a Mac command-line tool (install_name_tool) that modifies where the final wrapped executable looks for its libraries. It handles all this stuff for you, in other words. If you want to find out more about how py2app works, look at its documentation--it has a lot of options. -- Kevin Walzer Code by Kevin http://www.codebykevin.com

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Re: [Tkinter-discuss] TkAqua question
by Kevin Walzer Dec. 22, 2007

Dec. 22, 2007

Michael O'Donnell wrote: > Hi Kevin, > > Do you mean something like: > > APP = ['MyApp.py'] > DATA_FILES = [] > OPTIONS = {'argv_emulation': True, 'resources': > ['/Library/Frameworks/Tk.framework/Versions/8.4/Tk']} > > setup( > app=APP, > data_files=DATA_FILES, > options={'py2app': OPTIONS}, > setup_requires=['py2app'], > ) > > Do I have to tell Tkinter where to find the framework? > py2app looks in /Library/Frameworks by default to find Tcl and Tk. It won't wrap the stuff that Apple provides in /System/Library. If you have a universal build of Tcl/Tk 8.4.x in /Library/Frameworks you should be fine. You also need to make sure that you wrap both Tcl and Tk, Tk won't work without Tcl.framework being included also. -- Kevin Walzer Code by Kevin http://www.codebykevin.com

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TkAqua question
by Michael O'Donnell Dec. 22, 2007

Dec. 22, 2007

Hi all, I distribute a Python/Tkinter application, on Macintosh and Windows. A recurring problem is that Tkinter on Mac assumes the TKAqua libraries are resident on the machine, and that these libraries are version 8.4. On MacOSX 1.3 this is not so, so I tell my users to install TclTkAqua8.4.10 from the sourceforge repository. Fine. But now I have a PPC Mac user running OSX 10.4 who has installed the latest version of TkAqua, 8.5, for other reasons, and now Tkinter doesn't work. What I want to do to fix all these problems is to include the TclTkAqua 8.4 libraries in my distribution, and tell Tkinter where it should look for the libraries. Is this possible? Mick

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Shortcut for trying Tcl/Tk 8.5 with Mac Python?
by Russell E. Owen Dec. 21, 2007

Dec. 21, 2007

I'd like to try out Aqua Tcl/Tk 8.5 with my Python* and was hoping for a quicker way than building a new python from source. I didn't expect this to work, but I tried modifying _tkinter.so so it found Tck/Tk 8.5. Not surprisingly "import Tkinter" then refused to load complaining about finding 8.5 instead of 8.4 in the headers. Better that than mysterious crashes! I suspect the recipe is to build a new version of python from source and save the _tkinter.so. Then I can switch back and forth between Tcl/Tk versions by just swapping that one file. Is there an easier way? Or has somebody already built a _tkinter.so for Aqua Tcl/Tk 8.5 that they'd be willing to share? If not I'll build one and make it available. -- Russell *If you are wondering "why the hurry?" it's because my application does not work well with any of the available universal versions of Tcl/Tk and I really want to release the app as a universal binary. All universal Tcl/Tk prior to 8.4.16 sometimes have an offset in the reported mouse position which causes grief in a graphical offsetter. 8.4.16 seems to fix that, but introduces a nasty memory leak (which a recent poster traced to the Text widget related to deleting and adding lines).

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