win32com Excel bug?

[Roger Upole]

<cfriedalek at gmail.com> wrote in message news:1145426529.989164.212450 at g10g2000cwb.googlegroups.com...
> I'm driving Excel from python, largely successfully. Now I'm trying to
> add errorbars to XY scatter plots. Keep getting a com_error. Can't
> track down the problem.
>
> I modified a simple example to duplicate the problem. Thanks to Mathieu
> Fenniak http://www.stompstompstomp.com/weblog/entries/67/ for the code.
>
> The traceback is shown below. You can see that the Excel chart series
> has a method called ErrorBar. But when I try to use it with any or all
> of its allowed arguments, it fails. The traceback goes into the guts of
> win32com but I don't really have a clue at that point. (Happy to learn
> something new though).
>
> The relevant Excel VBA language doc is here.
> http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbaxl11/html/xlmthErrorBar1_HV03076818.asp
>
> Hope someone can help. Losing hair .... fast!
>
>
>
> In [16]: %run test.py
> --Return--
>> c:\python23\lib\pdb.py(992)set_trace()->None
> -> Pdb().set_trace()
> (Pdb) c
> There's a method waiting
> ---------------------------------------------------------------------------
> pywintypes.com_error                                 Traceback (most
> recent call
> last)
>
> c:\temp\mpival\test.py
>     79
>     80     # A simple example:
> ---> 81     plot( (1,2,3,4,5), (6,7,8,9,10) )
>     82
>     83     # Some more data:
>
> c:\temp\mpival\test.py in plot(x, y, xAxisLog, yAxisLog)
>     35     if series.ErrorBar:
>     36         print "There's a method waiting"
> ---> 37         series.ErrorBar(Direction = constants.xlY)


According to the docs, the Include and Type arguments are
required, and they're not being passed to the method.

  hth
       Roger



----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----