|
PureBytes Links
Trading Reference Links
|
Hi,
I can see now that the parameter types are different. The Markets item method takes an integer and the Stocks method takes a variant.
According to the win32com docs, http://oreilly.com/catalog/pythonwin32/chapter/ch12.html#24074, PythonWin will map python types to a variant automagically, so it should just work. Perhaps this is an issue with late binding, and that I should force it to use early binding?
Any ideas anyone?
Thanks
Peter.
--- In amibroker@xxxxxxxxxxxxxxx, "pwa72x" <peter.aberline@xxx> wrote:
>
> Hi,
>
> I'm using Python and the PyWin32 extensions to allow COM iterop with AB.
>
> I'm trying to call the Item method on a Stocks object, but I'm getting the error below.
> Confusingly, doing the same thing on the Markets object works fine. Can anyone suggest what is happening here?
>
> Thanks
> Peter
>
> ################################################
> import win32com.client
>
> def doWork():
> ab = win32com.client.Dispatch("Broker.Application")
>
> bLoadLSE = ab.LoadDatabase("E:\data\AmiBroker\Amibroker_databases\LSE");
> if bLoadLSE == False:
> print "Could not load the LSE database"
> return
>
> nNumMarkets = ab.Markets.Count
> print "\nNumMarkets is %d " % nNumMarkets
> for nMarketIdx in range(nNumMarkets):
> currMarket = ab.Markets.Item(nMarketIdx)
> print currMarket.Name
>
> nNumStocks = ab.Stocks.Count;
> print "\nNumStocks is %d " % nNumStocks
> for nStockIdx in range(nNumStocks):
> print "StockIdx is %d" % nStockIdx
> currStock = ab.Stocks.Item(nStockIdx) # <---- fails here
> print currStock.Ticker
>
> if __name__ == "__main__":
> doWork()
>
> ################################################
>
> Output:
> E:\data\python>python posting.py
>
> NumStocks is 714
> StockIdx is 0
> Traceback (most recent call last):
> File "posting.py", line 25, in <module>
> doWork()
> File "posting.py", line 21, in doWork
> currStock = ab.Stocks.Item(nStockIdx) # <---- fails here
> TypeError: 'NoneType' object is not callable
>
------------------------------------
**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
TO GET TECHNICAL SUPPORT send an e-mail directly to
SUPPORT {at} amibroker.com
TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/amibroker/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/amibroker/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:amibroker-digest@xxxxxxxxxxxxxxx
mailto:amibroker-fullfeatured@xxxxxxxxxxxxxxx
<*> To unsubscribe from this group, send an email to:
amibroker-unsubscribe@xxxxxxxxxxxxxxx
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|