473,320 Members | 2,164 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

Slicing an IXMLDOMNodeList

Hi,

I'm using MSXML to select elements from a XML document and want
to slice off the last part of an IXMLDOMNodeList.
import win32com.client
xmldoc = win32com.client.Dispatch('msxml.DOMDocument')
xmldoc.load('file.xml') True rgelem = xmldoc.selectNodes('/root/elem')
if rgelem.length > 10: .... rgelem = rgelem[-10:]
....
Traceback (most recent call last):
File "<interactive input>", line 2, in ?
File "C:\Python24\Lib\site-packages\win32com\client\__init__.py",
line 454, in __getattr__
raise AttributeError, "'%s' object has no attribute '%s'" %
(repr(self), attr)
AttributeError: '<win32com.gen_py.Microsoft XML, v4.0.IXMLDOMNodeList
instance at 0x19500888>' object has no attribute '__len__'


The IXMLDOMNodeList obviously doesn't have a '__len__' member
function (why not?).
Is there a way to make the IXMLDOMNodeList support slicing?
I've tried to give the rgelem object a __len__ member, but got
an exception from __setattr__:

File "C:\Python24\Lib\site-packages\win32com\client\__init__.py",
line 462, in __setattr__
raise AttributeError, "'%s' object has no attribute '%s'" %
(repr(self), attr)
AttributeError: '<win32com.gen_py.Microsoft XML, v4.0.IXMLDOMNodeList
instance at 0x26395112>' object has no attribute '__len__'

Anybody know how to make this work?

TIA,
-- Marcel

Jul 19 '05 #1
1 1728
For future reference:

The solution to this problem is a simple one.
rgelem = list(xmldoc.selectNodes('/root/elem'))
returns a real list of IXMLDOMElements that can be sliced.

-- Marcel

Jul 19 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
by: Martin Danielson | last post by:
I have a problem that I can't work out. I have a script in ASP using VBScript that act quite funny when editing and xml file. Here is my explenation I have the following xml-fil <root><element...
3
by: Bryan Olson | last post by:
I recently wrote a module supporting value-shared slicing. I don't know if this functionality already existed somewhere, but I think it's useful enough that other Pythoners might want it, so here...
11
by: jbperez808 | last post by:
>>> rs='AUGCUAGACGUGGAGUAG' >>> rs='GAG' Traceback (most recent call last): File "<pyshell#119>", line 1, in ? rs='GAG' TypeError: object doesn't support slice assignment You can't assign to...
17
by: baibaichen | last post by:
i have written some code to verify how to disable slicing copy according C++ Gotchas item 30 the follow is my class hierarchy, and note that B is abstract class!! class B { public: explicit...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
0
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
1
by: Shællîpôpï 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.