Mailman 3 November 2015 - 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

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Tkinter on OS X generates excessive event on non-US input sequence
by Alexander Uvizhev Nov. 28, 2015

Nov. 28, 2015

Hi, I've found that Tkinter on Mac OS X somehow incorrectly works with events when bound sequence hit on non-US keyboard layout. I use Russian keyboard layout along with English and I'm trying now to arrange Undo/Redo shortcuts to work correctly independent of layout. Under Linux everything works fine from the box. Under OS X it seems like a bug and when I hit <Command-Cyrillic_ya> which is the same physical keys as <Command-z> tkinter sends excessive KeyPress event. Here is the test code. ================ from tkinter import * class TkExample(Frame): def __init__(self, parent): Frame.__init__(self, parent) self.pack() text = Text(self) text.pack() text.bind('<KeyPress>', self.on_kp) text.bind('<<Undo>>', self.on_undo) def on_kp(self, event): print('CHAR:', event.char) def on_undo(self, event): print('UNDO') if __name__ == '__main__': root = Tk() TkExample(root) root.mainloop() ================ When I run the app and hit <Command-z> I get this output: CHAR: UNDO But if I hit <Command-Cyrillic_ya> I see this: CHAR: CHAR: z UNDO Under Linux in both cases I get the same output (1). Can anyone explain this? Maybe this is not a bug? -- Alexander Uvizhev uvizhe(a)yandex.ru

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Re: [Tkinter-discuss] JPEGs
by Robert Greschke Nov. 16, 2015

Nov. 16, 2015

Oops. Didn't hit the Reply All. > On 2015-11-16, at 12:39, Robert Greschke <bob(a)passcal.nmt.edu> wrote: > > >> On 2015-11-16, at 12:14, Michael Lange <klappnase(a)web.de> wrote: >> >> Hi, >> >> On Mon, 16 Nov 2015 11:50:44 -0700 >> Robert Greschke <bob(a)passcal.nmt.edu> wrote: >> >>> Why can't I go >>> >>> Pic = PhotoImage(file = "./lp.jpg") >>> >>> ? >>> >>> Are JPEGs not popular enough yet, or am I missing something? This is >>> one of the craziest restrictions to Tkinter I can think of. I wish I >>> knew how to fix it, but I just ain't smart enough. >>> >>> No, I don't want to use PIL. I'd like to make imbedded help that is >>> just simple text-picture-text-picture, instead of just text. Yes, the >>> pictures could be PNGs, but, again, are JPEGs just not popular enough, >>> or is it a licensing thing of some sort? >> >> reading https://en.wikipedia.org/wiki/JPEG#Patent_issues I figure that >> it might be the latter. >> If you don't want to use PIL, maybe tkimg is an option for you? If not I >> am afraid you will have to stick with PNGs or GIFs. >> >> Best regards >> >> Michael >> > > Yup, looks like it. (Cool article.) I guess Dick the Butcher had the right idea. :) > > I can do PNGs for the help pictures, but I guess I'll just have to suck it up and use PIL for my extracurricular project -- extracting artwork from music and video files and making thumbnails. Darn it. > > How come PIL can get away with it? > > Thanks! > Bob > >

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JPEGs
by Robert Greschke Nov. 16, 2015

Nov. 16, 2015

Why can't I go Pic = PhotoImage(file = "./lp.jpg") ? Are JPEGs not popular enough yet, or am I missing something? This is one of the craziest restrictions to Tkinter I can think of. I wish I knew how to fix it, but I just ain't smart enough. No, I don't want to use PIL. I'd like to make imbedded help that is just simple text-picture-text-picture, instead of just text. Yes, the pictures could be PNGs, but, again, are JPEGs just not popular enough, or is it a licensing thing of some sort? Bob

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Linux compile Python with (Active)Tcl 8.6
by Aivar Annamaa Nov. 1, 2015

Nov. 1, 2015

I'm trying to compile Python 3.5.0 on CentOS 6 with Tcl 8.6. I did ./configure --with-tcltk-includes=I/opt/ActiveTcl-8.6/include --with-tcltk-libs=L/opt/ActiveTcl-8.6/libs --prefix=/home/aivar/localpython After installing, IDLE -> Help -> About shows me that I'm using Tk 8.5.7. What could have gone wrong?

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