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Nov 28th, 2005

Tkinter exception

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Hello,
I start learning Python GUI using Tkinter
as IDE I'm using wing IDE 2.0.3 trial.
I'm using Tkinter mainly because of very good debugger.
Belive it or not I get exception in this code:

Python Syntax (Toggle Plain Text)
from Tkinter import *
 
root = Tk ( ) 
 
my_container = Frame ( root )
from Tkinter import *

root = Tk ( ) 

my_container = Frame ( root )

Exception is generated in file Tkinter.py in line:

Python Syntax (Toggle Plain Text)
def __getattr__(self, attr):
        "Delegate attribute access to the interpreter object"
        return getattr(self.tk, attr)
def __getattr__(self, attr):
        "Delegate attribute access to the interpreter object"
        return getattr(self.tk, attr)

and Exception message is:

Python Syntax (Toggle Plain Text)
AttributeError: __nonzero__
 
Traceback (innermost last):
 
File "c:\PythonProjects\GUILearning\SimpleGUI2.py", line 1, in ?
  from Tkinter import *
File "c:\PythonProjects\GUILearning\SimpleGUI2.py", line 5, in ?
  my_container = Frame(root)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 2374, in __init__
  Widget.__init__(self, master, 'frame', cnf, {}, extra)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1855, in __init__
  BaseWidget._setup(self, master, cnf)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1828, in _setup
  if not master:
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1647, in __getattr__
  return getattr(self.tk, attr)
AttributeError: __nonzero__

Traceback (innermost last):

File "c:\PythonProjects\GUILearning\SimpleGUI2.py", line 1, in ?
  from Tkinter import *
File "c:\PythonProjects\GUILearning\SimpleGUI2.py", line 5, in ?
  my_container = Frame(root)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 2374, in __init__
  Widget.__init__(self, master, 'frame', cnf, {}, extra)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1855, in __init__
  BaseWidget._setup(self, master, cnf)
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1828, in _setup
  if not master:
File "C:\Python24\Lib\lib-tk\Tkinter.py", line 1647, in __getattr__
  return getattr(self.tk, attr)

However, if I just execute file everything seems to work, I tried in IDLE and there
are no exceptions there. What could that be, maybe it's an IDE bug?

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Micko

Reputation Points: 55

Solved Threads: 6

Junior Poster

Offline

148 posts
since Aug 2005

Permalink

Nov 28th, 2005

Re: Tkinter exception

Since the frame is empty and you are not packing it into the root, my IDE ignores it, no errors. Your IDE may have a lint filter built in and looks at this as uncompleted code!

This would be the more normal way to do something with a frame ...

Python Syntax (Toggle Plain Text)
from Tkinter import *
 
root = Tk()
 
my_container = Frame(root, width=100, height=100, bg='red')
my_container.pack()
 
root.mainloop()
from Tkinter import *

root = Tk()

my_container = Frame(root, width=100, height=100, bg='red')
my_container.pack()

root.mainloop()

vegaseat

Moderator

Reputation Points: 1333

Solved Threads: 1403

DaniWeb's Hypocrite

Offline

5,792 posts
since Oct 2004

Permalink

Nov 29th, 2005

Re: Tkinter exception

It's same exception again!
in line:
my_container = Frame(root, width=100, height=100, bg='red')
so to get rid off it I write:

Python Syntax (Toggle Plain Text)
try:
    my_container = Frame(root, width=100, height=100, bg='red')
except: pass
try:
    my_container = Frame(root, width=100, height=100, bg='red')
except: pass

What is interesting is that exception is raised only in Debug mode...

- Micko

Micko

Reputation Points: 55

Solved Threads: 6

Junior Poster

Offline

148 posts
since Aug 2005

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