newbie question: what diff. between Debug>Run without debugger (Ctrl+F5) and Python>Run without debugger (Ctrl+Shift+W)

hi..

i am new in ironpython. specialy using with sharpdevelop.

I am creating simple windows apps. using python and .NET framework 4.0.

after windows form created, i just want run test. using Debug>Run without debugger (Ctrl+F5), and it seem ok, no error. and I can see the windows form.

but when i want run using Python>Run without debugger (Ctrl+Shift+W) ..i got error msg. 'No module named Drawing' .

so.. what diff. between Debug>Run without debugger (Ctrl+F5) and Python>Run without debugger (Ctrl+Shift+W)?

after i read ironpython book, i found something i need add some code.

here default code from sharpdevelop python:

import System.Drawing
import System.Windows.Forms

from System.Drawing import *
from System.Windows.Forms import *

class MainForm(Form):
    def __init__(self):
        self.InitializeComponent()
    
    def InitializeComponent(self):
        # 
        # MainForm
        # 
        self.Name = "MainForm"
        self.Text = "dee"

and here.. added some line code:

import sys
import clr

clr.AddReference("System.Drawing")
clr.AddReference("System.Windows.Forms")

import System.Drawing
import System.Windows.Forms

from System.Drawing import *
from System.Windows.Forms import *

class MainForm(Form):
    def __init__(self):
        self.InitializeComponent()
    
    def InitializeComponent(self):
        # 
        # MainForm
        # 
        self.Name = "MainForm"
        self.Text = "dee"

test=MainForm()
Application.Run(test)

with this source code..i can run both ..Debug>Run without debugger (Ctrl+F5) and Python>Run without debugger (Ctrl+Shift+W)..

but I have new problem. at Design Tab, I cant see or add/edit visual design, got error msg:

"" Failed to load designer. Check the source code for syntax errors and check if all references are available.

ICSharpCode.FormsDesigner.FormsDesignerLoadException: ICSharpCode.PythonBinding.PythonComponentWalkerException: Could not find type ''. Are you missing an assembly reference?
   at ICSharpCode.PythonBinding.PythonComponentWalker.ThrowCouldNotFindTypeException(MemberExpression memberExpression)
   at ICSharpCode.PythonBinding.PythonComponentWalker.Walk(AssignmentStatement node)
   at IronPython.Compiler.Ast.AssignmentStatement.Walk(PythonWalker walker)
   at IronPython.Compiler.Ast.SuiteStatement.Walk(PythonWalker walker)
   at IronPython.Compiler.Ast.PythonAst.Walk(PythonWalker walker)
   at ICSharpCode.PythonBinding.PythonComponentWalker.CreateComponent(String pythonCode)
   at ICSharpCode.Scripting.ScriptingDesignerLoader.CreateComponents()
   at ICSharpCode.Scripting.ScriptingDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
   at System.ComponentModel.Design.Serialization.BasicDesignerLoader.BeginLoad(IDesignerLoaderHost host)


   at ICSharpCode.FormsDesigner.FormsDesignerViewContent.LoadDesigner()
   at ICSharpCode.FormsDesigner.FormsDesignerViewContent.LoadAndDisplayDesigner()
   at ICSharpCode.FormsDesigner.FormsDesignerViewContent.LoadInternal(OpenedFile file, Stream stream)
   at ICSharpCode.SharpDevelop.Gui.AbstractViewContentHandlingLoadErrors.Load(OpenedFile file, Stream stream) ""

but the interesting here is, if I turn off the ' test=MainForm() ' line ...i can see or edit the design tab..

so what happen here? how to make this work both at code and design tab.?

thanks.

prie.