Return class instance from COM method in Python

**Paul** · Jul 18 '05, 04:05 AM

Re: Return class instance from COM method in Python

I managed to solve my own problem - it didn't like having two __init__
methods (different prototypes).

However, I have another problem. I've worked out how to return a
list, and also how to return an instance of a class. I know need to
be able to return a list of objects. Is this possible (no luck so
far)?

Paul

paul.kemp@stand ardbank.com (Paul) wrote in message news:<bb8e48c9. 0310200804.7835 0aef@posting.go ogle.com>...[color=blue]
> Hi
>
> I'm implementing a few COM classes using Python. I've come across a
> problem when I'm trying the return an instance of a class from a
> method on one of my classes. The code is as follows, with two classes
> - clsDividend and clsDividendEsim ate. The
> clsDividend.Get DividendEstimat es method tries to return a new instance
> of the clsDividendEsti mate class, but throws an error.
>
> Any ideas what I'm doing wrong - is it possible to do what I'm trying
> to achieve?
>
> The client will ultimately be Excel, but I can't even get it to work
> within a Python client yet. Ultimately I'd like to do this in my
> client(pseudo):
>
> oDiv = CreateObject("S BLFront.clsDivi dend")
> oDivEst = oDiv.GetDividen dEstimates("tes tval")
> msgbox oDivEst.ccy
>
> Many thanks
> Paul
>
> # Expose the Python SBLFront.
> class clsDividend(cls SBLFront):
> """The SBLFront object exposed via COM
> """
> #_reg_clsctx_ = pythoncom.CLSCT X_LOCAL_SERVER
> _public_methods _ = ['GetDividendEst imates']
> _public_methods _.extend(clsSBL Front._public_m ethods_)
>
> # All registration stuff to support fully automatic
> register/unregister
> _reg_verprogid_ = "SBLFront.clsDi vidend.1"
> _reg_progid_ = "SBLFront.clsDi vidend"
> _reg_desc_ = "Python SBLFront"
> _reg_clsid_ = "{2E851A1B-A8D1-4AD5-BA16-EB6B9BCF2F21}"
> _reg_class_spec _ = "win32com.serve rs.sblfront.cls Dividend"
>
> # ------------------------------------------------------------------------
>
> def __init__(self):
> clsSBLFront.__i nit__(self)
> self.dict = {}
>
> def GetDividendEsti mates(self, InsId):
> oDivEst = clsDividendEsti mate('USD', 1.0, 1.0,
> '2003-01-01','2003-01-01','2003-01-01','Test description')
> return oDivEst
>
> # ----------------------------------------------------------------------------
>
> class clsDividendEsti mate:
> """The SBLFront object exposed via COM
> """
> _public_methods _ = []
> _public_attrs_ = ['ccy', 'dividend', 'tax_factor', 'pay_day',
> 'ex_div_day', 'day', 'description']
> _readonly_attrs _ = ['ccy', 'dividend', 'tax_factor', 'pay_day',
> 'ex_div_day', 'day', 'description']
>
> # All registration stuff to support fully automatic
> register/unregister
> _reg_verprogid_ = "SBLFront.clsDi videndEstimate. 1"
> _reg_progid_ = "SBLFront.clsDi videndEstimate"
> _reg_desc_ = "Python SBLFront"
> _reg_clsid_ = "{055DEFBC-B095-4C5B-A9CE-BFBB965BBDC1}"
> _reg_class_spec _ = "win32com.serve rs.sblfront.cls DividendEstimat e"
>
> # ------------------------------------------------------------------------
>
> def __init__(self):
> self.dict = {}
> self.ccy = ''
> self.dividend = 0.0
> self.tax_factor = 0.0
> self.pay_day = ''
> self.ex_div_day = ''
> self.day = ''
> self.descriptio n = ''
>
> def __init__(self, sCCY, dDiv, dTax, dtDay, dtPayDay, dtExDivDay,
> sDesc):
> self.dict = {}
> self.ccy = sCCY
> self.dividend = dDiv
> self.tax_factor = dTax
> self.pay_day = dtPayDay
> self.ex_div_day = dtExDivDay
> self.day = dtDay
> self.descriptio n = sDesc[/color]

Return class instance from COM method in Python

Return class instance from COM method in Python

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