Mailman 3 October 2006 - Tkinter-discuss

Framed
by Cam Nov. 28, 2006

Nov. 28, 2006

Hello list, The following little test program works as expected. But if you change the line marked "----- Here ----" so it reads: self.Frame2 = Pmw.ScrolledFrame(self) then it blows up on an error deep inside Tkinter when attempting to create the button mentioned on the following line. All I wanted to do was trade a Frame for a ScrolledFrame. I'm stumped as to why it blows up. Anybody out there know? Thanks Cam ps I realize that in this example Frame2 is redundant. I encountered the problem in a larger case. To generate the example shown below I stripped out pretty much everything that wasn't necessary to demonstrate the problem. - - - - - import Pmw from Tkinter import * class Test(Frame): def __init__(self,Master=None,**kw): apply(Frame.__init__,(self,Master),kw) self.Frame2 = Frame(self) #<---- HERE ---- self.Frame2.pack(side='left') self.Button1 = Button(self.Frame2) self.Button1.pack(side='top') Root = Tk() Pmw.initialise(Root) App = Test(Root) App.pack(expand='yes',fill='both') Root.geometry('640x480+10+10') Root.mainloop()

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Opening Tkinter widgets in remote displays
by Jose Hales-Garcia Oct. 31, 2006

Oct. 31, 2006

Sorry if this has been asked already, I couldn't find any documentation about it. We're trying to get Tkinter's widgets to appear on an X11 server running remotely. Is this possible? So far we're only able to open widgets on the local console. Thank you for your time, Jose

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Strange Tkinter bug...
by Vasilis Vlachoudis Oct. 27, 2006

Oct. 27, 2006

Dear All, I am writting an application using Tkinter and I have the following (annoying problem). I have a class to display randomly tips when the program starts. It shows a dialog with a lamp image on the left and a text message on the right with the tip, and I am selecting randomly a tip from the database. If I use the "import random" in the class to select with tip = random.randint(0,len(TipDialog.tips)-1) the random tip, at the exit of the program I get the following messages for all PhotoImages I have loaded: Exception _tkinter.TclError: <_tkinter.TclError instance at 0x2aaaae09b758> in <bound method PhotoImage.__del__ of <Tkinter.PhotoImage instance at 0x2aaaae1ae320>> ignored Exception _tkinter.TclError: <_tkinter.TclError instance at 0x2aaaae09b758> in <bound method PhotoImage.__del__ of <Tkinter.PhotoImage instance at 0x2aaaae1ae368>> ignored Exception _tkinter.TclError: <_tkinter.TclError instance at 0x2aaaae20a6c8> in <bound method PhotoImage.__del__ of <Tkinter.PhotoImage instance at 0x2aaaaed34f38>> ignored Exception _tkinter.TclError: <_tkinter.TclError instance at 0x2aaaae20a6c8> in <bound method PhotoImage.__del__ of <Tkinter.PhotoImage instance at 0x2aaaaed34f80>> ignored ... If I comment out the "#import random" then I am using the 10ths-milliseconds of the time to get a random tip tip = int(time.time()*100)%len(TipDialog.tips) then at the exit I get NO error message at all. There should be some memory leak either on the random or on the PhotoImage? Regards Vasilis

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updated article: a controller class for Tkinter
by Fredrik Lundh Oct. 24, 2006

Oct. 24, 2006

in case someone on this list is interested in an easier way to implement interactive tools for Tkinter applications, here's a short article about pluggable controllers in Tkinter: http://effbot.org/zone/tkcontroller.htm the code can also be downloaded from a subversion repository: http://svn.effbot.python-hosting.com/stuff/sandbox/tkinter enjoy /F

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Tkinter question
by Sorin Schwimmer Oct. 24, 2006

Oct. 24, 2006

Thanks for everybody's advice, on both forums (tkinter-discuss & python-list). I end up using Fredrik's Lundh solution, since, in my project, multiple buttons are using the same callback, and their creation is controlled by the interaction with the user. Thanks again, Sorin

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Re: [Tkinter-discuss] OptionMenu, change the list of choices
by mkieverpy＠tlink.de Oct. 24, 2006

Oct. 24, 2006

Vasilis Vlachoudis wrote: > > values=["One","Two","Three"] # Initial list > o = OptionMenu(frame, *values) > #... > #then later in the code read new values from a file > newvalues = f.readline().split() > o.config(???=newvalues) > With m = o.children ['menu'] you can access the menu which implements the OptionMenu. OptionMenu uses 'command' entries. So you can add new entries with m.add_command(label='a_new_entry',command=if_you_need_to_set_a_var_or_something) I never used this personally. Hope it works for you. Matthias Kievernagel mkiever at web dot de

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question on tab window
by V H Oct. 24, 2006

Oct. 24, 2006

Hi, Does Tkinter offer some simple solution for creating tab windows? Some examples? best regards, Weining _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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OptionMenu, change the list of choices
by Vasilis Vlachoudis Oct. 24, 2006

Oct. 24, 2006

Dear All, I want to use the OptionMenu, in which I want to dynamically change the list of choices. Something like values=["One","Two","Three"] # Initial list o = OptionMenu(frame, *values) #... #then later in the code read new values from a file newvalues = f.readline().split() o.config(???=newvalues) I couldn't find any method on how to do this. Cheers Vasilis

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Tkinter question
by Sorin Schwimmer Oct. 24, 2006

Oct. 24, 2006

Hi All, Is it possible to have a widget id while it is created? Something like this: Button(root, text='...', command= lambda v=<widget id>: fn(v)).grid() and then the function: def fn(v): v['bg']='BLUE' # or maybe nametowidget(v)['bg']='BLUE' Thanks, Sorin

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Tkinter and IDLE
by dblank＠brynmawr.edu Oct. 21, 2006

Oct. 21, 2006

This may be more of an IDLE question than Tkinter, but it does involve the technology of running Tkinter so I thought I'd try here. What is the best way to popup a non-application (not running mainloop) Tk window in IDLE? I have found that code that just makes a Tkinter window behaves differently in IDLE depending on whether IDLE is running with subprocesses or not. Furthermore, it seems yet-again different if one is running pythonw.exe in Windows. Is there one way that works in all situations? Or is there a standard way of telling which IDLE mode (subprocesses or non-subprocesses) mode we are running, and then do different things based on the mode? I'm trying to show a window that has a button that can be pushed, but still allow people to type at the IDLE shell prompt. Maybe I've missed some documentation somewhere that describes the pitfalls of using Tkinter with IDLE? Thanks for any leads, -Doug

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