#save this file to disk as PythonCOMLib.py

class PythonClass1(object):
    _reg_clsid_ = "{82CF48D3-6826-4FE0-94A6-8EFF656998FB}"
    _reg_progid_= 'PythonLib1.PythonClass1'
    _public_methods_ = ['Greeting']

    def Greeting(self):
        return "Hello world"

if __name__=='__main__':
    print ("Registering COM server...")
    import win32com.server.register
    win32com.server.register.UseCommandLine(PythonClass1)