Mailman 3 June 2010 - Tkinter-discuss

How to capture exceptions after the end of the program
by Vasilis Vlachoudis July 1, 2010

July 1, 2010

Hi all, I have a tkinter application that uses several fonts. However only with python 2.4 when the application is closed then I get the following exceptions (with 2.6 it works Ok) Exception exceptions.AttributeError: "'NoneType' object has no attribute 'TclError'" in <bound method Font.__del__ of <tkFont.Font instance at 0x2ac0dd4c4908>> ignored Exception exceptions.AttributeError: "'NoneType' object has no attribute 'TclError'" in <bound method Font.__del__ of <tkFont.Font instance at 0x2ac0dd4c4680>> ignored and I have no way of capturing them since they arrive even after the last line of the program. I believe that for some reason the tkinter is deleted before and afterwards it tries to delete the fonts and creates the TclError. Is there a way to protect for these exceptions? I was getting the same problem with the PhotoImage() but now I am trying to delete all of them before the end of the program to avoid the exceptions. However with fonts I can miss something e.g replace a font and exit afterwards. Thanks in advance Vasilis -- ------------------------------------------------------- Vasilis Vlachoudis Dep. EN-STI-EET Web: home.cern.ch/bnv Tel: +41-22-7679851 Fax: +41-22-7669644 -------------------------------------------------------

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problem of understanding objects
by zizou afix June 27, 2010

June 27, 2010

hi, i try to organize my code. but i ' ve some problem with basic objet oriented programing use. if some one can show me the way to destroy my canvas with this structure. thanks laurent ########################################################################## from Tkinter import * class Root: def __init__(self, master): myMenu = MyMenu(master) myAccueil = MyAccueil(master) class MyAccueil(object): def __init__(self, master): canvas = Canvas(master, width = 500, height = 500, bg='yellow' ) canvas.pack(expand = YES, fill = BOTH) def delete(self): # my object problem canvas.destroy() # is here class MyMenu(object): def __init__(self, master): self.menubar = Menu(master) master.config(menu=self.menubar) self.createmenubar(master) def createmenubar(self, master): self.Fmenu = Menu(self.menubar, tearoff=0) self.menubar.add_cascade(label="exec",menu=self.Fmenu) # exec Content self.Fmenu.add_command(label="bang", command=self.bang) # Displays menubar master.config(menu=self.menubar) def bang(self): # and myAccueil.delete() # here root = Tk() app = Root(root) root.mainloop() ##########################################################################

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touch screens
by wet_colored)arch June 23, 2010

June 23, 2010

Can anyone point me to information on how to use or extend tkinter for use with touch screens? I have an application written in Tkinter that works fine, and I am newbie enough to GUIs that I don't know Qt or other. Is there an extension or something native in Tkinter I can use? What do you recommend I do if there is nothing in Tkinter. -- View this message in context: http://old.nabble.com/touch-screens-tp28964837p28964837.html Sent from the Python - tkinter-discuss mailing list archive at Nabble.com.

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Re: [Tkinter-discuss] Tkinter-discuss Digest, Vol 76, Issue 9
by zizou afix June 20, 2010

June 20, 2010

Hi Michael, I understand your clear explanations and now it works. thanks a lot ziz 2010/6/20 <tkinter-discuss-request(a)python.org> > Send Tkinter-discuss mailing list submissions to > tkinter-discuss(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/mailman/listinfo/tkinter-discuss > or, via email, send a message with subject or body 'help' to > tkinter-discuss-request(a)python.org > > You can reach the person managing the list at > tkinter-discuss-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Tkinter-discuss digest..." > > > Today's Topics: > > 1. adjust the size of two canvas when I resize (zizou afix) > 2. Re: adjust the size of two canvas when I resize (Michael Lange) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 20 Jun 2010 04:06:45 +0200 > From: zizou afix <ziz.root(a)gmail.com> > To: tkinter-discuss(a)python.org > Subject: [Tkinter-discuss] adjust the size of two canvas when I resize > Message-ID: > <AANLkTil-63Iznw8yBv-pyxWb_ttVPA36tyi2aWZuv5Nh(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > i'm a new user of tkinter, > I would like to adjust my canevas to the main window when a resize it. > i've just find this on the web : > http://infohost.nmt.edu/tcc/help/pubs/tkinter/layout-mgt.html#root-resize > but in my case that don't work > > this is my code : > 2 canvas and 2 scrollbars > it runs but it does not fit at the window > if someone can help me, very very thanks > > > ##################################################################################### > from Tkinter import * > > class Application(Frame): > def __init__(self, master=None): > Frame.__init__(self, master) > self.grid(sticky=N+S+E+W) > self.canCompose() > > def canCompose(self): > top=self.winfo_toplevel() > top.rowconfigure(0, weight=1) > top.columnconfigure(1, weight=1) > self.rowconfigure(0, weight=1) > self.columnconfigure(1, weight=1) > > self.canCompose = Canvas(self, width = 800, height = 400 ,bg = > 'red', scrollregion=(0,0,100,400)) > self.canComposeTitle = Canvas(self, width = 100, height =400 ,bg = > 'blue', scrollregion=(0,0,0,400)) > > self.canComposeTitle.grid(row=0, column=0, > sticky=N+S+E+W) > self.canCompose.grid(row=0, column=1, > sticky=N+S+E+W) > > self.scrollCompose_y = Scrollbar(self, orient='vertical') > self.scrollCompose_y.config(command = self.twoScroll) > self.scrollCompose_x = Scrollbar(self, orient='horizontal', > command=self.canCompose.xview) > > self.canComposeTitle['yscrollcommand'] = self.scrollCompose_y.set > self.canCompose['yscrollcommand'] = self.scrollCompose_y.set > self.canCompose['xscrollcommand'] = self.scrollCompose_x.set > self.scrollCompose_y.grid(row=0, column=2,sticky=N+S) > self.scrollCompose_x.grid(row=1, column=0, columnspan=2, sticky=E+W) > > def twoScroll(self, *args): > """Send y scroll *args to the two canvas""" > self.canCompose.yview(*args) > self.canComposeTitle.yview(*args) > print args > > app = Application() > app.master.title("Sample application") > app.mainloop() > > ##################################################################################### >

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adjust the size of two canvas when I resize
by zizou afix June 20, 2010

June 20, 2010

Hi, i'm a new user of tkinter, I would like to adjust my canevas to the main window when a resize it. i've just find this on the web : http://infohost.nmt.edu/tcc/help/pubs/tkinter/layout-mgt.html#root-resize but in my case that don't work this is my code : 2 canvas and 2 scrollbars it runs but it does not fit at the window if someone can help me, very very thanks ##################################################################################### from Tkinter import * class Application(Frame): def __init__(self, master=None): Frame.__init__(self, master) self.grid(sticky=N+S+E+W) self.canCompose() def canCompose(self): top=self.winfo_toplevel() top.rowconfigure(0, weight=1) top.columnconfigure(1, weight=1) self.rowconfigure(0, weight=1) self.columnconfigure(1, weight=1) self.canCompose = Canvas(self, width = 800, height = 400 ,bg = 'red', scrollregion=(0,0,100,400)) self.canComposeTitle = Canvas(self, width = 100, height =400 ,bg = 'blue', scrollregion=(0,0,0,400)) self.canComposeTitle.grid(row=0, column=0, sticky=N+S+E+W) self.canCompose.grid(row=0, column=1, sticky=N+S+E+W) self.scrollCompose_y = Scrollbar(self, orient='vertical') self.scrollCompose_y.config(command = self.twoScroll) self.scrollCompose_x = Scrollbar(self, orient='horizontal', command=self.canCompose.xview) self.canComposeTitle['yscrollcommand'] = self.scrollCompose_y.set self.canCompose['yscrollcommand'] = self.scrollCompose_y.set self.canCompose['xscrollcommand'] = self.scrollCompose_x.set self.scrollCompose_y.grid(row=0, column=2,sticky=N+S) self.scrollCompose_x.grid(row=1, column=0, columnspan=2, sticky=E+W) def twoScroll(self, *args): """Send y scroll *args to the two canvas""" self.canCompose.yview(*args) self.canComposeTitle.yview(*args) print args app = Application() app.master.title("Sample application") app.mainloop() #####################################################################################

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Persistent text-widget tags: saving tags in text-files.
by Steve Solomon June 15, 2010

June 15, 2010

Kevin, Thank you, that will get me started in the right direction. Steve

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Labels with no background
by Bradley Hintze June 14, 2010

June 14, 2010

Hi, I'm trying to get a label in a canvas without a background. is this possible. Currently it defaults to white. -- Bradley J. Hintze Graduate Student Duke University School of Medicine 801-712-8799

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Persistent text-widget tags: saving tags in text-files.
by Steve Solomon June 14, 2010

June 14, 2010

Hello, Is it possible to save and reload a text document with its' tags still embedded in a document produced in the Text widget, and if so how? It seems that it should be possible in order not to discard hours of work formatting a text file. Thank you Steve

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problems of Tix.FileEntry and tkMessageBox in WinXP
by Ma China June 3, 2010

June 3, 2010

Hi, friends I'm programming with Tkinter/Tix. I want to use Tix.FileEntry, and only find fe_obj['value'] to get the selected file, is there any other way? As I find it may cause some memory problems, while used with tkMessageBox. Running the following codes, if I click "Work" twice, the program will crash before the 2nd warning sub-window pops up. Even if I comment the 2 lines of adding Label self.sflb, it still dump. My pc is WinXP Version 2002 Service Pack 3, CPU is Intel Core2 2-core, with Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)] on win32. I find it may be due to conflicts with Tix.FileEntry. How to fix it? import Tkinter, Tix import tkMessageBox, tkFileDialog class Worker(): def __init__(self): self.root = Tix.Tk() self.sffm = Tkinter.Frame(self.root) self.sflb = Tkinter.Label(self.sffm, text='Select file :') self.sflb.pack(side='left') self.sfft = Tix.FileEntry (self.sffm) self.sfft.pack(side='left') self.btfm = Tkinter.Frame(self.root) self.gnbt = Tkinter.Button(self.btfm,text='Work', command=self.work) self.gnbt.pack(side='left') self.sffm.pack() self.btfm.pack() Tkinter.mainloop() def work(self) : ''' do all work ''' print 1 value = self.sfft["value"] # use showwarning/showerror, if click "Work' for 2 times, will dump tkMessageBox.showwarning('Title', '<%s>' % value) print '+%s+' % value if __name__=='__main__': worker = Worker()

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Drop events from Desktop
by Vasilis Vlachoudis June 2, 2010

June 2, 2010

Hi all, Is there a way in Tkinter to receive drag'n'drop events from the Desktop? e.g. from the filemanager drag a file in a Tkinter application Regards Vasilis

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