3 beginner questions!

[Ali Dada]

hi all:

first question (PyQt): 
i am using the Qt designer that comes with RedHat9 to design a simple .ui form,
then i am saying:

$ pyuic form.ui > form.py

which successfully generates python code which includes a class definition that
is supposed to generate the form. i am adding a line to the code to create an
instance of the class so that i get a window or form or anything useful. when i
execute the modified code i get the following line on stdout:
 
QPaintDevice: Must construct a QApplication before a QPaintDevice



second question (Tkinter and Pmw)

i wrote the file below, called ScrolledListBox.py, and it works
fine when run directly from the terminal (ie it brings up a ScrolledListBox with
three entries so that when you select any of them it performs it function
properly, writing 'hi' to stdout)


#!/usr/bin/env python
from Tkinter import *
import Pmw

class ImageSelection(Frame ):
  
 def __init__( self):
  root = Tk()
  Frame.__init__( self )
  Pmw.initialise()
  self.pack( expand = YES, fill=BOTH)
  self.suites=['a', 'b', 'c']
  self.listBox = Pmw.ScrolledListBox( root, items = self.suites, listbox_height
= 5, vscrollmode = "static", selectioncommand  = self.switchSuite)
  self.listBox.pack( side = LEFT, expand = YES, fill= BOTH, padx = 5, pady=5)
  
 def switchSuite(self):
  print 'hi'
  
def main():
 ImageSelection().mainloop()
 
 
if __name__ == "__main__":
 ImageSelection().mainloop()


now the problem comes. i need to call the  above from a new file called
Index.py, shown below. Index.py imports ScrolledListBox and makes a Button that
calls ScrolledListBox. surprisingly (for me at least) the three entries in the
ListBox don't perform as expected. 



#!/usr/bin/env python
from Tkinter import *
import ScrolledListBox

class Index(Frame):
 def __init__(self, parent=None):
  
  Frame.__init__(self, parent)
  Button(self, text='Regression', command=ScrolledListBox.main).pack(side=TOP,
fill=BOTH)
  
 
if __name__ == '__main__':
 i = Index()
 i.pack()
 i.mainloop()



third question (Tkinter):

i am programming a menu bar that should appear alone in the window and should
span the width of the screen and should be displayed at the top of the screen.
any idea how this should be implemented? if i am not expressing myself properly,
i pasted my trial below.


#!/usr/bin/env python

from Tkinter import *                              # get widget classes
from tkMessageBox import * 
import sys
import OpenWorkArea
                        # get standard dialogs
class CMmenu(Frame):
	def __init__(self,parent=None) :
		Frame.__init__(self, parent)
		self.pack()
		widget = Button(self, text='Code Manage', command= self.makemenu)
		widget.pack(side=LEFT)
 

	def makemenu(self):
		root = Tk()                                       
		root.title('TAGZ -- Code Manage')
		top = Menu(root)                                # win=top-level window
		root.config(menu=top) 
		WorkArea = Menu(top, tearoff=0)
		WorkArea.add_command(label='Open...',  command =
OpenWorkArea.WorkAreaSelection,  underline=0)
		WorkArea.add_separator()
		WorkArea.add_command(label='Close',    command=root.quit, underline=0)
		WorkArea.add_command(label='Release...',  command=self.notdone,  underline=0)
		WorkArea.add_separator()
		WorkArea.add_command(label='Commit Files...',  command=self.notdone,  underline=0)
		WorkArea.add_command(label='Update Files...',  command=self.notdone,  underline=0)
		WorkArea.add_command(label='Restore Version...',  command=self.notdone, 
underline=0)
		WorkArea.add_command(label='Tag Files...',  command=self.notdone,  underline=0)
		WorkArea.add_separator()
		WorkArea.add_command(label='Refresh',  command=self.notdone,  underline=0)
		top.add_cascade(label='Work Area',     menu=WorkArea,        underline=0)

		file = Menu(top, tearoff=0)
		file.add_command(label='Open',  command=self.notdone,  underline=0)
		file.add_separator()
		file.add_command(label='Commit...', command=self.notdone,  underline=0)
		file.add_command(label='Update',    command=self.notdone,  underline=0)
		file.add_command(label='Restore Version...',    command=self.notdone, 
underline=0)
		file.add_command(label='Tag...',    command=self.notdone,  underline=0)
		file.add_command(label='Open Differences',    command=self.notdone,  underline=0)
		file.add_separator()
		file.add_command(label='Delete and Update...',    command=self.notdone, 
underline=0)
		file.add_separator()
		file.add_command(label='Add to Work Area',    command=self.notdone,  underline=0)
		file.add_command(label='Add to Work Area as Binary',    command=self.notdone,
 underline=0)
		file.add_command(label='Remove from Work Area',    command=self.notdone, 
underline=0)
		file.add_separator()
		file.add_command(label='Refresh',    command=self.notdone,  underline=0)
		top.add_cascade(label='File',     menu=file,        underline=0)

		edit = Menu(top, tearoff=0)
		edit.add_command(label='Undo',     command=self.notdone,  underline=0)
		edit.add_command(label='Redo',   command=self.notdone,  underline=0)
		edit.add_separator()
		edit.add_command(label='Cut',     command=self.notdone,  underline=0)
		edit.add_command(label='Copy',   command=self.notdone,  underline=0)
		edit.add_command(label='Paste',     command=self.notdone,  underline=0)
		edit.add_command(label='Delete',   command=self.notdone,  underline=0)
		edit.add_command(label='Select All',     command=self.notdone,  underline=0)
		edit.add_separator()
		top.add_cascade(label='Edit',     menu=edit,        underline=0)

		find = Menu(edit, tearoff=0)
		find.add_command(label='Find...', command=self.notdone,  underline=0)
		find.add_command(label='Find Next', command=self.notdone,  underline=0)
		find.add_command(label='Find Previous', command=self.notdone,  underline=0)
		find.add_command(label='Use Selection for Find', command=self.notdone, 
underline=0)
		find.add_command(label='Jump to Selection', command=self.notdone,  underline=0)
		edit.add_cascade(label='Find',   menu=find,     underline=0)
		tools = Menu(top, tearoff=0)
		inspector = Menu(tools, tearoff=0)
		inspector.add_command(label='Status', command=self.notdone,  underline=0)
		inspector.add_command(label='Logs', command=self.notdone,  underline=0)
		inspector.add_command(label='Differences', command=self.notdone,  underline=0)
		inspector.add_command(label='Tags', command=self.notdone,  underline=0)
		inspector.add_command(label='Contents', command=self.notdone,  underline=0)
		tools.add_cascade(label='Inspector',   menu=inspector,     underline=0)
		repositories = Menu(tools, tearoff=0)
		repositories.add_command(label='??', command=self.notdone,  underline=0)
		repositories.add_command(label='???', command=self.notdone,  underline=0)
		repositories.add_command(label='????', command=self.notdone,  underline=0)
		repositories.add_command(label='?????', command=self.notdone,  underline=0)
		repositories.add_command(label='??????', command=self.notdone,  underline=0)
		tools.add_cascade(label='Repositories',   menu=repositories,     underline=0)
		tools.add_command(label='Processes', command=self.notdone,  underline=0)
		tools.add_command(label='Comparisons...', command=self.notdone,  underline=0)
		console = Menu(tools, tearoff=0)
		console.add_command(label='??', command=self.notdone,  underline=0)
		console.add_command(label='???', command=self.notdone,  underline=0)
		console.add_command(label='????', command=self.notdone,  underline=0)
		console.add_command(label='?????', command=self.notdone,  underline=0)
		console.add_command(label='??????', command=self.notdone,  underline=0)
		tools.add_cascade(label='Console',   menu=console,     underline=0)
		top.add_cascade(label='Tools',     menu=tools,        underline=0)

		window= Menu(top, tearoff=0)
		window.add_command(label='Close Window',    command=root.quit, underline=0)
		top.add_cascade(label='Window',     menu=window,        underline=0)

		help= Menu(top, tearoff=0)
		help.add_command(label='About...',  command=self.notdone,  underline=0)
		help.add_command(label='TAGZ Manual',   command=self.notdone,  underline=0)
		top.add_cascade(label='Help',     menu=help,        underline=0)
	def notdone(self):  
		showerror('Not implemented', 'Not yet available')
if __name__ == '__main__':
                              
    #makemenu(root)                                     
    CMmenu().mainloop()