Mailman 3 September 2004 - Tkinter-discuss

Inserting a unicode zero-width nonbreaking space into a Text widget, from Tkinter, on a Mac
by Kenneth McDonald Nov. 3, 2004

Nov. 3, 2004

As the subject says, I am attempting to insert a particular unicode character (\ufeff) into a Text widget, from Python. This is not quite working correctly, and I'm not sure if the problem is between Python and Tcl, or is a problem of OS X not properly knowing the character. This character is supposed to be a 0-width space, and using Python's unicodedata.name function confirms that feff is in fact the proper unicode sequence. The character is construction using a one-character python string: zws = u"\ufeff" And then passed to Text's insert command. Unfortunately, what shows up on screen is a complex (perhaps Chinese) asian ideograph. "Python in a Nutshell" indicates that all communication between Tkinter and Tk is in unicode, so I had hoped this would transfer correctly. Not sure if I need to do some conversion or not...could there be a conflict between a straight Unicode (16-bit) representation and a UTF-8 representation? Or do I need to do an OS setting to make sure the OS and the internal representation are on the same wavelength? Thanks, Ken

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TCL-Tkinter-Python Interface - "Debug Assertion Failed!"
by Jayanthi, Satya Padmaja (Satya Padmaja) Sept. 30, 2004

Sept. 30, 2004

Hi : I am facing the following problem in the interaction between Python, Tkinter and TCL. Can anyone please give me some ideas on how to solve it ? I have a hardware, which can be controlled using TCL commands. I am writing a python script which calls the relavant TCL commands and in turn controls the hardware. I am using Tkinter as an interface to the Python and TCL scripts. The python script runs very well, without any problem. But, at the end of the run, a window pops up with an error message. The message is as follows: "Debug Assertion Failed !!! Program : F\Python23\python.exe File : dbgheap.c Line : 1044 Expression : _CrtIsValidHeapPointer(pUserData)..." My Python script looks something like this : import Tkinter root = Tkinter.Tk() root.tk.eval('source tcl_file.tcl') userName = 'abc' root.tk.eval('Init_hardware %s' %(userName)) My TCL functions : proc Init_hardware {userName} { load "hardware_name.dll" hardware_name_pkg # This line actually initializes the hardware hardware_name init -user userName } Any ideas will be highly appreciated. Thanks in advance.

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strange bind problem...
by Martin Franklin Sept. 30, 2004

Sept. 30, 2004

Hi All, Hope you can help I have written a quick HangMan game for my 6 year old son - not me ;-) And it works great..... but when the word changes, after guessing all the right letters, I get an extra 'guess' at the start of the next word. I guess you would have to run it to see what I mean... Sorry it's a bit long from Tkinter import * from string import letters, lowercase import random import time import os import sys FONT = "Courier 36 bold" class HangMan(Tk): def __init__(self): Tk.__init__(self) self.title("HangMan") self.bind("<Any-Key>", self.binder) self.words = ["oyster", "toy", "destroy", "employ", "convoy", "royal", "cowboy", "enjoy", "annoy", "voyage"] random.shuffle(self.words) f = Frame(self) self.canvas = Canvas(f, background = "white", width = 300, height=300) self.canvas.pack(side = "left") self.drawman() self.letters = {} lf = Frame(f) col = 0 row = 0 for letter in lowercase: l = Label(lf, text=letter, font=FONT) l.grid(row=row, column=col) self.letters[letter] = l col = col + 1 if col == 6: row = row + 1 col = 0 lf.pack(side = "left") f.pack() f = Frame(self) self.theword = Label(f, text="_ _ _ _ _", font=FONT) self.theword.pack(side="left") f.pack(fill="x") self.setword() def setword(self): self.guessed = [] self.currentword = self.words.pop() self.theword.config(text="_ " * len(self.currentword)) for l in self.letters.values(): l.config(fg = "black") def binder(self, event): key = event.keysym print "binder called", event.keycode, key if key not in letters: ## ignore return "break" if key not in self.guessed: self.guessed.append(key) self.strike(key) self.showletter() if key not in self.currentword: self.shownext() return "break" return "break" def shownext(self): ## draw the next part of the hang man try: id = self.bodyparts.pop() except: ## try this word again! self.showword() time.sleep(4) self.drawman() self.words.append(self.currentword) self.setword() return "break" try: self.canvas.itemconfig(id, outline="black") except: self.canvas.itemconfig(id, fill="black") def showword(self): self.theword.config(text=self.currentword) self.update() def showletter(self): #~ print "showletter called" out = [] for c in self.currentword: if c in self.guessed: out.append(c) else: out.append("_") self.theword.config(text=" ".join(out)) self.update() if "_" in out: # keep going.... pass else: time.sleep(4) self.drawman() self.setword() def strike(self, letter): l = self.letters[letter] l.config(fg = "red") def drawman(self): self.canvas.delete("all") self.bodyparts = [] id = self.canvas.create_line(50, 250, 250, 250, fill="white") self.bodyparts.append(id) id = self.canvas.create_line(50, 250, 50, 50, fill="white") self.bodyparts.append(id) id = self.canvas.create_line(50, 50, 150, 50, fill="white") self.bodyparts.append(id) id = self.canvas.create_line(150, 50, 150, 75, fill="white") self.bodyparts.append(id) # head id = self.canvas.create_oval(140, 75, 160, 95, outline="white") self.bodyparts.append(id) id = self.canvas.create_line(150, 95, 150, 150, fill="white") self.bodyparts.append(id) # leg id = self.canvas.create_line(150, 150, 125, 175, fill="white") self.bodyparts.append(id) # leg id = self.canvas.create_line(150, 150, 175, 175, fill="white") self.bodyparts.append(id) # arm id = self.canvas.create_line(150, 95, 125, 115, fill="white") self.bodyparts.append(id) # arm id = self.canvas.create_line(150, 95, 175, 115, fill="white") self.bodyparts.append(id) self.bodyparts.reverse() hm = HangMan() hm.mainloop() Hope you can help, Martin. -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

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Re: py2exe and Pmw - help please
by David Vaughan Sept. 28, 2004

Sept. 28, 2004

Thanks Martin, that worked. In fact I had been here before, amongst other variations. But the trick was to delete the "dist" folder before running setup.py. Martin Franklin wrote: > I guess one question would be how do you import Pmw in your application. I have created a Tkinter + Pmw py2exe > application I didn't do anything special. I too had a Pmw.py and PmwColor.py bundle both these files are are > in a sub-directory (and package) called Pmw, this package also has a __init__.py file. The contents of the > __init__.py file are:- > > > # __init__.py Pmw Package > > from Pmw import * > > Martin David Vaughan Email: David.Vaughan(a)gifford.uk.com

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py2exe and Pmw - help please
by David Vaughan Sept. 28, 2004

Sept. 28, 2004

I'm sure you've had this query before, and I did try lots of googling, but I still haven't got there... I have a program which uses Tkinter and Pmw, and it works fine in the interpreter. I have used py2exe succesfully on non-gui programs. And I have created Pmw.py using bundlepmw.py. But, wherever I put Pmw.py (and PmwBlt.py and PmwColor.py), I get the same message on running the executable as if I hadn'd bothered hooking up Pmw at all: Traceback (most recent call last): File "newproj.py", line 21, in ? File "Pmw\__init__.pyc", line 28, in ? WindowsError: [Errno 3] The system cannot find the path specified: 'C:\\data\\Software\\Python\\newproj\\v2_1\\dist\\library.zip\\Pmw/*.*' So, where do I put the Pmw files when I use py2exe? And also, once I've made my executable, what do I do with all the dll, pyd, and zip files when I use my executable on another computer? I'm using Python 2.3 and Windows XP for the compilation, and various flavours of Windows for running the executable. And here's my setup.py: #-------------- from distutils.core import setup import py2exe import sys sys.argv.append("py2exe") #Avoids having to use the command line setup( version = "2.1", description = "Creates default file structures for new projects/tenders", name = "newproj", ## packages = ["Pmw"], # targets to build windows = ["newproj.py"], ) #-------------- Any help would be most welcome. David David Vaughan Structural Analyst GIFFORD AND PARTNERS LTD Carlton House, Ringwood Road, Woodlands, Southampton, SO40 7HT, UNITED KINGDOM Tel: +44 (0)23 8081 7500 Fax: +44 (0)23 8081 7600 Email: David.Vaughan(a)gifford.uk.com Web: http://www.gifford.uk.com _____ This e-mail and any files transmitted with it are intended solely for the use of the individual or entity to whom they are addressed and may be confidential. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be advised that you have received this e-mail in error and that any use, dissemination, forwarding, printing or copying of this e-mail is strictly prohibited.

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Tkinter screen saver?
by dblank＠cs.brynmawr.edu Sept. 27, 2004

Sept. 27, 2004

Tkinter discussion, I'm wondering if I can get Tkinter to make a window that covers the whole screen so that we can have a Python-based screen saver? It looks like I can't move a Tkinter window so that the title bar doesn't show. For example, I see that Tkinter cleverly assumes that if I set a window geometry with negative x and/or y, it positions it from the bottom/right. But if I keep making the negative number bigger, I can get it to go off of the top of the window; I always get the title bar on the screen. Maybe this is my window manager's fault? Also, I can't make a window bigger than the screen size minus the width of the borders. Anyone have any ideas on getting something that approximates a canvas that covers the whole screen in Python? Thanks for any pointers, -Doug

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Re: [Tkinter-discuss] Re: Re: String-names and the NoteBook entryfield
by Chris Nethery Sept. 26, 2004

Sept. 26, 2004

That makes sense to me. Thanks again! --Chris Nethery

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passing parameters to a lambda function in Tkinter menubar
by stewart＠midtoad.homelinux.org Sept. 25, 2004

Sept. 25, 2004

Here's a problem I keep running into. It occurs when I try to pass parameters to a menubar item's command property using a lambda function. Probably it's a scoping problem, but I don't see how to resolve it (except not to pass parameters). Essentially the problem is this: if you simply call a method as the command callback when you are creating a GUI, that command will be executed right away when the GUI is drawn - at least, if you pass that method any arguments. One way to get around this is not pass arguments to the callback methods. I thought another way might be to use a lambda function, and pass it the arguments. That works if the lambda calls another class, but if it calls a method in the same class, I get name errors. In the attached mini-app, which uses Pmw, the File > Close menu selection uses a lambda function that passes a parameter to another class with a __call__ method. It works properly. However, the Options > Set size To menu choice, which uses a lambda function to pass the size string to a setFont method, does not work. It looks as though the lambda function doesn't know it's part of the Demo class, so it can't find the self.setFont method. If I replace 'self' with the name of the class, Demo, I instead get an error saying 'unbound method must be called with class instance 1st argument'. Can anyone shed any light on how make this latter method work? It would greatly clean up my app. thanks Stewart

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Re: [Tkinter-discuss] Re: String-names and the NoteBook entryfield
by Chris Nethery Sept. 24, 2004

Sept. 24, 2004

Martin, wow! That's exactly what I'm trying to accomplish. I can't wait to tinker with the code this evening! Thank you for your help! Sincerely, Chris Nethery

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String-names and the NoteBook entryfield
by Chris Nethery Sept. 22, 2004

Sept. 22, 2004

Hello everyone. I have an issue that is causing me many anxious moments. So, at long last, I feel I need to refer to the experts. I am trying to create a Pmw.NoteBook instance that the user names as he/she creates it. Specifically, I am trying to enable the user to name the NoteBook instance in its own entryfield, similar to creating a new Tree node in Windows Explorer or a new Windows folder or shortcut icon, for example. Secondly, I am having a hard time associating the input string name with the NoteBook instance. Unfortunately, I have gone through many cycles trying to make things work, and the code has broken each time, so I have included just the base code that (almost) works. Any ideas on this one? Thanking you in advance, Christopher Nethery ### imports ### from Tkinter import * from Tkconstants import * import Pmw ### initialization ### root = Tk() root.wm_geometry("1015x705") Pmw.initialise(root) ### notebooks ### class MyWidgets: def __init__(self, root): self.root = root Mainframe = Frame(self.root) Mainframe.pack(fill='both', expand=1, padx=1, pady=1) self.Notebook = Pmw.NoteBook(Mainframe, createcommand=self.curse_Selection) self.Notebook.pack(fill='both', expand=1, padx=1, pady=1) self.nameEntryField = Pmw.EntryField(self.Notebook.tab(""), label_font=(('Verdana'), '7'), labelpos=W, labelmargin=0, label_text='Stuff:') self.nameEntryField.pack(fill='both', expand=1, padx=1, pady=1) fieldEntry = self.nameEntryField.component('entry').get() self.NotebookPage1 = self.Notebook.add(fieldEntry) self.NotebookPage1.pack(fill='both', expand=1, padx=1, pady=1) self.NotebookPage1Frame = Frame(self.NotebookPage1, borderwidth=2, width=975, height=650, relief=GROOVE) self.NotebookPage1Frame.pack(fill='both', expand=1, padx=1, pady=1) def curse_Selection(self, notebook): pass if __name__=='__main__': mw = MyWidgets(root) root.mainloop()

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