Mailman 3 July 2012 - Tkinter-discuss

Control position of Tkinter common dialogs?
by python＠bdurham.com Dec. 9, 2016

Dec. 9, 2016

Python 2.7 under Windows: How can we control the position of Tkinter's common dialogs? Here's what we've discovered: * Certain common dialogs always open up relative to their parent window * Certain common dialogs always open up centered on the user's desktop * All common dialogs appear to ignore the optional parent= parameter Questions: * How can we force a dialog to open up relative to its parent window? * How can we force a dialog to open up centered on the user's desktop? Background: import tkColorChooser as colorchooser import tkFileDialog as filedialog import tkMessageBox as messagebox # always open up relative to parent windows fileOpen = filedialog.askopenfilename() fileOpens = filedialog.askopenfilenames() fileSaveAs = filedialog.asksaveasfilename() color = colorchooser.askcolor() # always open up centered on desktop folderOpen = filedialog.askdirectory() messagebox.askquestion() Malcolm

6 9

Segfault in Image.PhotoImage on OS X
by Marc Culler Nov. 14, 2012

Nov. 14, 2012

This was reported here in February, but no debugging information was provided by the reporter: http://stackoverflow.com/questions/9142786/python-imagetk-photoimage-segfau… <view-source:http://stackoverflow.com/questions/9142786/python-imagetk-photo…> I can explain the nature of the problem, but I don't know how to fix it correctly. I am using the standard x86_64 Python 2.7.2 package from python.org and I have installed Active State Tcl/Tk 8.11. When I tried using easy_install to install PIL it would not load, claiming that _imaging.so did not exist. In fact, it existed but was only a thin i386 executable. So I compiled Imaging-1.1.7 with export CFLAGS='-arch i386 -arch x86_64' and export TCL_ROOT=/Library/Frameworks/Tcl.framework/Versions/8.5/Tcl I was then able to load the module. However, the following code produced a segfault: import Image import ImageTk import Tkinter W = Tkinter.Tk() Im = Image.open('test_image.jpg') x = ImageTk.PhotoImage(Im) The crash occurs in Tk_GetImageMasterData. More importantly, though, the crash was preceded by the following messages: objc[36554]: Class TKApplication is implemented in both /Library/Frameworks/Tk.framework/Versions/8.5/Tk and /System/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. Which one is undefined. objc[36554]: Class TKMenu is implemented in both /Library/Frameworks/Tk.framework/Versions/8.5/Tk and /System/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. Which one is undefined. objc[36554]: Class TKContentView is implemented in both /Library/Frameworks/Tk.framework/Versions/8.5/Tk and /System/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. Which one is undefined. objc[36554]: Class TKWindow is implemented in both /Library/Frameworks/Tk.framework/Versions/8.5/Tk and /System/Library/Frameworks/Tk.framework/Versions/8.5/Tk. One of the two will be used. Which one is undefined. Guessing that PIL was finding the System/Library/Frameworks/Tk.Framework instead of /Library/Frameworks/Tk.Framework, I tried hiding the system Tcl and Tk frameworks by renaming them. I was then able to create the PhotoImage and display it. I don't know where those messages come from, and I have never encountered them before. But I am guessing they are from OS X, since they are generated by an objective C program. Evidently _tkinter.so is able to specify which Tk.Framework to use. I don't know its mechanism for doing that. But, somehow, PIL is not doing it, and it ends up using the wrong one. A stack trace of the crash is below. - Marc 0x000000011517bccd in Tk_GetImageMasterData () (gdb) bt #0 0x000000011517bccd in Tk_GetImageMasterData () #1 0x0000000115183d9f in Tk_FindPhoto () #2 0x00000001014fbadc in PyImagingPhotoPut () #3 0x000000011502a05b in TclInvokeStringCommand () #4 0x000000010102142a in TclEvalObjvInternal () #5 0x000000010102261c in Tcl_EvalObjv () #6 0x000000010100646d in Tkapp_Call () #7 0x00000001000c102d in PyEval_EvalFrameEx () #8 0x00000001000c2d29 in PyEval_EvalCodeEx () #9 0x00000001000c0b6a in PyEval_EvalFrameEx () #10 0x00000001000c2d29 in PyEval_EvalCodeEx () #11 0x000000010003da80 in function_call () #12 0x000000010000c5e2 in PyObject_Call () #13 0x000000010001ebcb in instancemethod_call () #14 0x000000010000c5e2 in PyObject_Call () #15 0x00000001000ba5f7 in PyEval_CallObjectWithKeywords () #16 0x0000000100021e5e in PyInstance_New () #17 0x000000010000c5e2 in PyObject_Call () #18 0x00000001000be5f3 in PyEval_EvalFrameEx () #19 0x00000001000c2d29 in PyEval_EvalCodeEx () #20 0x00000001000c2e46 in PyEval_EvalCode () #21 0x00000001000e769c in PyRun_InteractiveOneFlags () #22 0x00000001000e78fe in PyRun_InteractiveLoopFlags () #23 0x00000001000e80e1 in PyRun_AnyFileExFlags () #24 0x00000001000fe77c in Py_Main () #25 0x0000000100000f14 in dyld_stub_strlen ()

4 5

Fwd: Toggle buttons
by Jane Griscti July 25, 2012

July 25, 2012

---------- Forwarded message ---------- From: Jane Griscti <jgriscti(a)gmail.com> Date: Tue, Jul 24, 2012 at 1:37 PM Subject: Re: [Tkinter-discuss] Toggle buttons To: Mark Summerfield <list(a)qtrac.plus.com> On Tue, Jul 24, 2012 at 11:05 AM, Mark Summerfield <list(a)qtrac.plus.com>wrote: > Hi Jane, > > On Tue, 24 Jul 2012 13:45:38 +0000 (UTC) > Jane <jgriscti(a)gmail.com> wrote: > > Mark Summerfield <list <at> qtrac.plus.com> writes: > > > > > > > > Hi, > > > > > > I want to create a toggle button, i.e., a button that when clicked goes > > > down (if it is up) and goes up (if it is down). > > > > > > One easy way to achieve this is to set the button's style to > > > "Toolbutton" (see self.toggle2). But unfortunately, that gets rid of > > > the button's relief so it looks out of place amongst other non-toggling > > > buttons. > > > > > > I solved if for Linux using a custom style (see self.toggle3). But this > > > doesn't work on Windows and I can't figure out how to solve it. > > > > > > Can anyone suggest a solution? > [snip] > > > Hi ... > > > > Found that setting the ttk.Checkbutton style to 'TButton' forces it to > > appear as themed button; then, on selection, changing it to 'Toolbutton' > > gives it a 'sunken' appearance. Works ok under Windows 7. > > > > cb1 = ttk.Checkbutton(f, style='Demo.TButton', > > image=(self.noletters, 'selected', > > self.letters), command=lambda: self._cb_value_changed(cb1)) > > > > def _cb_value_changed(self, cb): > > # if a checkbutton is selected, use the 'Toolbutton' > > # style to make it appear 'sunken' > > if 'selected' in cb.state(): > > cb['style'] = 'Demo.Toolbutton' > > else: > > cb['style'] = 'Demo.TButton' > > I tried your idea on Windows 7 & Linux (& a slightly simplified version > which did the same). Yes, it correctly changes the appearance between > raised and sunken: but in the sunken state the width of the button > shrinks to fit the text -- and there's no width property for styled > buttons:-( > > Here's the code: > > ############################################################ > import tkinter.ttk > > class Window(tkinter.ttk.Frame): > > def __init__(self, master=None): > super().__init__(master) > self.toggle1 = tkinter.ttk.Button(self, text="Off (1)", > command=lambda *args: self.toggle(self.toggle1, 1)) > self.toggle1.pack(padx=5, pady=5) > self.toggle2 = tkinter.ttk.Button(self, text="Off (2)", > style="Toolbutton", > command=lambda *args: self.toggle(self.toggle2, 2)) > self.toggle2.pack(padx=5, pady=5) > self.toggle3 = tkinter.ttk.Button(self, text="Off (3)", > command=lambda *args: self.toggle(self.toggle3, 3)) > self.toggle3.pack(padx=5, pady=5) > style = tkinter.ttk.Style() > style.configure("Toggle.TButton") > style.map("Toggle.TButton", relief=[("pressed", "sunken"), > ("selected", "sunken"), ("!selected", "raised")]) > self.toggle3.config(style="Toggle.TButton") > self.toggle4 = tkinter.ttk.Checkbutton(self, > style="Toggle.TButton", text="Off (4)", > command=lambda *args: self.toggle_style(self.toggle4, 4)) > self.toggle4.pack(padx=5, pady=5) > tkinter.ttk.Button(self, text="Quit", > command=self.master.destroy).pack(padx=5, pady=5) > self.pack() > > def toggle_style(self, button, number): > if button.instate(("selected",)): > button.config(text="Off ({})".format(number)) > button.config(style="Toolbutton") > else: > button.config(text="On ({})".format(number)) > button.config(style="Toggle.TButton") > > def toggle(self, button, number): > if button.instate(("!selected",)): > button.state(("selected",)) > button.config(text="On ({})".format(number)) > else: > button.state(("!selected",)) > button.config(text="Off ({})".format(number)) > > window = Window() > window.master.title("Toggle") > window.master.mainloop() > ############################################################ > > > -- > Mark Summerfield, Qtrac Ltd, www.qtrac.eu > C++, Python, Qt, PyQt - training and consultancy > "Programming in Go" - ISBN 0321774639 > http://www.qtrac.eu/gobook.html > Hi Mark ... there is a width value for ttk.Checkbutton. I was able to get it work with the code below. I just forced a width of 11 pixels (tried to use the winfo_reqwidth() of another button to get the right size but it returns 76 for some reason ... there must be a way to get a decent size??) tkinter.ttk.Style().configure('Toggle.Toolbutton', anchor='center') self.toggle4 = tkinter.ttk.Checkbutton(self, style='Toggle.TButton', text="Off (4)", width=-11, command=lambda *args: self.toggle_style(self.toggle4, 4)) self.toggle4.pack(padx=5, pady=5) def toggle_style(self, button, number): if button.instate(("selected",)): button.config(text="Off ({})".format(number)) button.config(style="Toggle.Toolbutton") else: button.config(text="On ({})".format(number)) button.config(style="Toggle.TButton") Jane PS Apologies, thought I had sent this to the list

3 2

Toggle buttons
by Mark Summerfield July 24, 2012

July 24, 2012

Hi, I want to create a toggle button, i.e., a button that when clicked goes down (if it is up) and goes up (if it is down). One easy way to achieve this is to set the button's style to "Toolbutton" (see self.toggle2). But unfortunately, that gets rid of the button's relief so it looks out of place amongst other non-toggling buttons. I solved if for Linux using a custom style (see self.toggle3). But this doesn't work on Windows and I can't figure out how to solve it. Can anyone suggest a solution? Here's the code I've got: ############################################################ import tkinter.ttk class Window(tkinter.ttk.Frame): def __init__(self, master=None): super().__init__(master) self.toggle1 = tkinter.ttk.Button(text="Off", command=lambda *args: self.toggle(self.toggle1)) self.toggle1.pack(padx=5, pady=5) self.toggle2 = tkinter.ttk.Button(text="Off", style="Toolbutton", command=lambda *args: self.toggle(self.toggle2)) self.toggle2.pack(padx=5, pady=5) self.toggle3 = tkinter.ttk.Button(text="Off", command=lambda *args: self.toggle(self.toggle3)) self.toggle3.pack(padx=5, pady=5) style = tkinter.ttk.Style() style.configure("Toggle.TButton") style.map("Toggle.TButton", relief=[("pressed", "sunken"), ("selected", "sunken"), ("!selected", "raised")]) self.toggle3.config(style="Toggle.TButton") tkinter.ttk.Button(text="Quit", command=self.master.destroy).pack(padx=5, pady=5) self.pack() def toggle(self, button): if button.instate(("!selected",)): button.state(("selected",)) button.config(text="On") else: button.state(("!selected",)) button.config(text="Off") window = Window() window.master.title("Toggle") window.master.mainloop() ############################################################ Thanks! -- Mark Summerfield, Qtrac Ltd, www.qtrac.eu C++, Python, Qt, PyQt - training and consultancy "Programming in Python 3" - ISBN 0321680561 http://www.qtrac.eu/py3book.html

3 4

hierarchical version of ttk.combobox
by Michael O'Donnell July 23, 2012

July 23, 2012

Hi All, Is there some widget that can give me a hierarchical popup menu similar to ttk.combobox, but with each item opening a submenu? Mick

2 1

pybwidget notebook bug
by Markus Holub July 13, 2012

July 13, 2012

'delete' is defined twice in the NoteBook class. Moreover the second definition misses the 'destroyframe' argument, making this argument unusable. The 'delete' call in 'getframe' seems also incorrect. Regards, Markus

1 0

pytkapp - python package to develop a simple application (MDI/SDI) using tkinter library.
by mid.tier July 5, 2012

July 5, 2012

Good day, I uploaded initial release for pytkapp package (former pytkmdiapp) for fast develop tkinter-based application with MDI/SDI interface. Features: Tested under python 2.6, 2.7, 3.1 Platform-independent (testing on win xp, 7, ubuntu, fedora) Contains set of useful (on my view ;-)) widgets and tools Contains updated tablelist wrapper for tcl package tablelist (http://www.nemethi.de) You can download package from PyPi: http://pypi.python.org/pypi/pytkapp

1 0

Re: [Tkinter-discuss] how to use tkinter in python3.2
by psao pollard-flamand July 1, 2012

July 1, 2012

The module name is Tkinter not tkinter... ________________________________ From: contro opinion Sent: 30/06/2012 11:53 PM To: Tkinter-discuss Subject: [Tkinter-discuss] how to use tkinter in python3.2 1.i have installed tk 2.install python3.1 and python3.2 the sameway 1)download 2)./configure 3)make 4)make install in my console tiger@ocean:~$ python3.2 Python 3.2.3 (default, Jul 1 2012, 11:07:14) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import tkinter Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python3.2/tkinter/__init__.py", line 39, in <module> import _tkinter # If this fails your Python may not be configured for Tk ImportError: No module named _tkinter >>> tiger@ocean:~$ python3.1 Python 3.1.3 (r313:86834, Nov 28 2010, 11:28:10) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import tkinter >>> what is the matter? _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss(a)python.org http://mail.python.org/mailman/listinfo/tkinter-discuss

3 2

how to use tkinter in python3.2
by contro opinion July 1, 2012

July 1, 2012

1.i have installed tk 2.install python3.1 and python3.2 the sameway 1)download 2)./configure 3)make 4)make install in my console tiger@ocean:~$ python3.2 Python 3.2.3 (default, Jul 1 2012, 11:07:14) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import tkinter Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python3.2/tkinter/__init__.py", line 39, in <module> import _tkinter # If this fails your Python may not be configured for Tk ImportError: No module named _tkinter >>> tiger@ocean:~$ python3.1 Python 3.1.3 (r313:86834, Nov 28 2010, 11:28:10) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import tkinter >>> what is the matter?

1 0