COM server and EXE

Teja tejovathi.p at
Tue Jan 8 12:04:29 CET 2008

On Jan 8, 3:33 pm, Teja <tejovath... at> wrote:
> Hi All,
> I have a Python COM server. I need to deploy it on various sytems.
> When I run the COM server from
> python its showing an output " Registered : sample.lib"
> If I try to use the COM obj from a VB client like:
> obj = CreateObject("sample.lib")
> Its working fine without any errors
> Now I am trying to convert this COM server to an exe through py2exe
> and after I run the exe, I am
> getting the same output " Registered : sample.lib"
> But If I try to use the COM obj from a VB client like
> obj = CreateObject("sample.lib")
> A console pops up saying " Registered : sample.lib" and VB application
> hangs there.
> Its throwing a VB error that "ActiveX object cannot be
> created......etc etc"
> Any suggestions please.......
> Regards,
> Tejovathi

Here is my sample COM server and py2exe setup file

import win32com.client
import os.path
import shutil
from win32api import Sleep
import string
import os
import sys
import pythoncom

class FirstEx:

    _reg_clsid_ = "{A6DE9DF8-5EBF-48E6-889E-C71CB84CFF2C}"
    pythoncom.frozen = 1
    if hasattr(sys, 'importers'):
        # In the py2exe-packed version, specify the module.class
        # to use. In the python script version, python is able
        # to figure it out itself.
        _reg_class_spec_ = "__main__.FirstEx"
    _reg_desc_ = "My first COM server"
    _reg_progid_ = "SAMPLE.Lib"
    _public_methods_ = ['init', 'Version']
    _public_attrs_ = ['softspace', 'noCalls']
    _readonly_attrs_ = ['noCalls']
    _reg_clsctx_ = pythoncom.CLSCTX_LOCAL_SERVER

    def __init__(self):
        self.softspace = 1
        self.noCalls = 0

    def Version(self):
        self.noCalls = self.noCalls + 1

        # insert "softspace" number of spaces
        return "Version: 0.0.1"

if __name__=='__main__':
    import sys
    if hasattr(sys, 'importers'):
        # running as packed executable.
        if '--register' in sys.argv[1:] or '--unregister' in
        # --register and --unregister work as usual
            import win32com.server.register
            # start the server.
            from win32com.server import localserver
        import win32com.server.register

 Here is my setup file:

#Start here
from distutils.core import setup
import py2exe

setup(options = {"py2exe": {"compressed": 1,
                          "optimize": 2,
                          "ascii": 1,
                          "bundle_files": 1}},
    zipfile = None,
    com_server = ["win32com.servers.interp"],
    console = [""])
#End here

Here is my VB code:

Sub subRoutine()
Dim connection As Object
Dim returnvalue1 As String
Dim returnvalue2 As String
Dim flag3 As Boolean

Set connection = CreateObject("SAMPLE.Lib")
returnvalue1 = connection.Version()
MsgBox (returnvalue1)
End Sub

The non exe version of the COM server ie. directlly running the registers the library properly and

in the VB application, the message box displays the version as 0.0.1.

But, after I create the EXE file using the file and run it,
it registers the library.

When I run the VB application, it hangs at the line

Set connection = CreateObject("SAMPLE.Lib")

and displays. " ACTIVEX cannot create the object"

Any suggestions please....

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