<< This is my python code >>
<< (Step 1) - I am registering the class of this python file for this PythonUtil class by executing this code in the pythonwin.exe interpreter >>


class PythonUtil:
    _public_methods_ = ['funct’]
    _reg_progid_ = "PythonUtil.Utilities"
    _reg_clsid_ = "{73B6791B-C161-4F26-9402-D4AE4BC602AB}"

    def funct(self, val, item=None):
    print “hi”

if __name__=='__main__':
  print "COM server being registered..."
  import win32com.server.register
  win32com.server.register.UseCommandLine(PythonUtil)

output:

com being registered.



<< (step2) - I am having this code in c# >>

private void button_Click(object sender, EventArgs e)
{
object instance =Activator.CreateInstance(Type.GetTypeFromProgID("PythonUtil.Utilities"));
 if (instance != null)
 {
   Type type = instance.GetType();
   for (int y = 0; y < ((checkedListBox1.CheckedItems.Count)); y++)
   {
   object objRet = type.InvokeMember("SwapCaseString", BindingFlags.Default | BindingFlags.InvokeMethod, null, instance, paramList);                   
   }

}

}


<< (step 3) - executing this c# code , allows me to call the function 'funct' and 
It works fine for me >>


-----------    Upto here everything is fine   --------------------

But my query is,

  1. I dont want to do the execution process of (Step 1) , instead I need that to be registering the classID process through C# itself.
  2. Let me make it little bit clear ,
    I am allowed to write the code in python , but I cannot execute it in pythonwin.
    Instead I have a button click in c#, which will first registers that class or executes that python dynamically and Executes in c#
    so for that I need an alternative.

<hope u understand my requirement><please help>

Are you saying you want to execute a python app from a C# app (with a button-push)?

Are you saying you want to execute a python app from a C# app (with a button-push)?

yes I want to execute the c# application , and the user is not allowed to know about the background python .

yes I want to execute the c# application , and the user is not allowed to know about the background python .

Is there any problem with the understanding , I looking for the solution .could anyone help me out of this.?

Here is a test I made using a console app that spawns python and runs a script that sends me a text message.

It can easily be modified to work in a WinForms app (or other).
One concern I have is this technique will not suppress anything displayed by the python code.

using System;
using System.Diagnostics;

namespace DW_401505_con
{
   class Program
   {
      private static ProcessStartInfo RunPythonScript(string strArgs)
      {
         return new ProcessStartInfo()
         {
            FileName = @"c:\Program Files\IronPython 2.7.1\ipy.exe",
            Arguments = strArgs,
            UseShellExecute = false
         };
      }

      private static void Display(string strMessage)
      {
#if DEBUG
         Console.WriteLine(strMessage);
#endif
      }

      static void Main(string[] args)
      {
         try
         {
            Display("Starting process");
            Process.Start(RunPythonScript(@"c:\science\python\SendText.py"));
            Display("Success!!!");
         }
         catch (Exception exc)
         {
            Display("Execution failed: " + exc.Message);
         }
      }
   }
}

I am getting errors in this part:

return new ProcessStartInfo()
         {
            FileName = @"C:\Program Files\IronPython 2.6\ipy.exe",
            Arguments = strArgs,
            UseShellExecute = false
         };

errors:
; expected
invalid expression term ","

Remove the line break between IronPython and 2.6.
But note: Your python path will go there.

Remove the line break between IronPython and 2.6.
But note: Your python path will go there.

That's fine.

But I think this is similar to this,

private void button1_Click(object sender, EventArgs e)
{
            Display("Starting process");
            ProcessStartInfo st = new ProcessStartInfo();
            st.FileName = @"C:\Program Files\IronPython2.6\ipy.exe";
            st.Arguments = @"D:\Rakesh-TBU\Backup\pythonworkspace\SOURCE\TA.py";
            st.UseShellExecute = false;
            Process.Start(st);
            Display("Success!!!");
}

Output:
on clicking button event , Ipy.exe console window is opening and didnt execute the python file, but it is just idle and nothing happened and closed automatically in a minute.

As per your previous suggestion , I think line space was not the problem ,
it is showing like ';' expected in all the 4 lines ..

Are you using Iron Python?
You will need to put in the path to the Python you are using.

yes I am using Iron python,but I am unable to feed any keystroke to that console..
I tried ipy.exe manually open to execute the python code(.py file) , but I feel like I am in the wrong path for the usage of the command line input options in th ipy.exe

At the command-line, when you type:
ipy {program_name}.py
...and press Enter, what happens?

i typed,
ipy decimal.py


syntax error: unexpected token

Does it do that with all Python code you try to run?

Does it do that with all Python code you try to run?

yes for all the file.
I even tried this link http://blog.benhall.me.uk/2008/05/ironpython-classes-within-separate.html
but I am getting the same error as , unexpected token...


I am having the folder named "iron" in the c:
and two files customerfile.py and main.py in folder named "iron"

customerfile.py
class Customer(object):
def PrintHello(self):
print "Hello World!"

main.py
from customerfile import Customer
def main():
print 'Hello World'
c = Customer()
print 'Created Customer'
c.PrintHello()

if __name__ == "__main__":
print 'Hello'
main()


IronPython 2.6.1 (2.6.10920.0) on .NET 2.0.50727.3603
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print sys.path
['.', 'C:\\Program Files\\IronPython 2.6', 'C:\\Program Files\\IronPython 2.6',
'C:\\Program Files\\IronPython 2.6\\Lib', 'C:\\Program Files\\IronPython 2.6\\DL
Ls', 'C:\\Program Files\\IronPython 2.6\\lib\\site-packages', 'C:\\Program Files
\\IronPython 2.6\\lib\\site-packages\\win32', 'C:\\Program Files\\IronPython 2.6
\\lib\\site-packages\\win32\\lib', 'C:\\Program Files\\IronPython 2.6\\lib\\site
-packages\\Pythonwin', 'C:\\Program Files\\Common Files\\dSPACE\\RealTimeTesting
\\1.8\\Python', 'C:\\Program Files\\IronPython 2.6\\lib\\site-packages\\wx-2.8-m
sw-unicode']
>>> import sys
>>> sys.path.append("C:\Program Files\Common Files\dSPACE\Python25\Lib")
>>> import os
>>> sys.path.append("C:\iron")
>>> sys.path.append(os.path.abspath("Customer"))
>>> ipy.exe main.py
File "<stdin>", line 1
ipy.exe main.py

^
SyntaxError: unexpected token 'main'

>>>

I ran that from the command-line and it executed with no problem.
Maybe you have a bad install of Iron Python.
Can you re-install it?

Also, please remember to use CODE tags when posting code.

class Customer(object):
   def PrintHello(self):
      print "Hello World!"
from CustomerFile import Customer

def main():
   print 'Hello World'
   c = Customer()
   print 'Created Customer'
   c.PrintHello()


if __name__ == "__main__":
   print 'Hello'
   main()