I have been developing an application driving a device through COM. I
used win32com (brilliant )
and was at a fairly advanced stage being able to access the functions
of the device and access/ retrieve its data.
A week or two ago I did some overdue upgrading to all the components of
the application.win 32com, python to 2.4.4 and wxpy to latest.
Then the problem began (I think!).
My app still accesses the device and some functions still perform as
expected. Howeve some important data retrieval functions now behave
very differently.
Initially a tuple was returned, which was made into a list. This tuple
returned (true,'1234xyz' ), the first element was the success or failure
of the operation, the second the required data.
Now all these functions return only the boolean, True or False.
I cannot seem to produce the tuple that initially worked extremely
well.
eg. initially
xx.GetMACAddr(p aram1,param2) <-- params as per 'intellisense' would
return
(True,'123xyz')
now
xx.GetMACAddr(p aram1,param2) returns
True (type boolean)
I have exhausted my relative inexperience on this one.
Any Ideas BTW VB extracts the data just fine , so I dont think that
the Device or firmware is at fault here.
Python has been great so far, I trust this problem is an oversight on
my part.
Thanks in keen anticipation for any ideas to get over this one!!
I am in the middle of returning to Python 2.4.3 just to be sure that
this is not the issue. 1 997
bli wrote:
>I have been developing an application driving a device through COM. I
used win32com (brilliant )
and was at a fairly advanced stage being able to access the functions
of the device and access/ retrieve its data.
A week or two ago I did some overdue upgrading to all the components of
the application.win 32com, python to 2.4.4 and wxpy to latest.
Then the problem began (I think!).
My app still accesses the device and some functions still perform as
expected. Howeve some important data retrieval functions now behave
very differently.
Initially a tuple was returned, which was made into a list. This tuple
returned (true,'1234xyz' ), the first element was the success or failure
of the operation, the second the required data.
Now all these functions return only the boolean, True or False.
I cannot seem to produce the tuple that initially worked extremely
well.
eg. initially
xx.GetMACAddr(p aram1,param2) <-- params as per 'intellisense' would
return
(True,'123xyz')
now
xx.GetMACAddr(p aram1,param2) returns
True (type boolean)
I have exhausted my relative inexperience on this one.
Any Ideas BTW VB extracts the data just fine , so I dont think that
the Device or firmware is at fault here.
Python has been great so far, I trust this problem is an oversight on
my part.
Thanks in keen anticipation for any ideas to get over this one!!
I am in the middle of returning to Python 2.4.3 just to be sure that
this is not the issue.
Try running makepy on the object's typelib. It may have been done
for your previous version of python. Occasionally this can cause a
change in the number of return values if the library is doing something
non-standard.
Roger This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Justin Stockton |
last post by:
I recently upgraded from ActivePython 2.2.2 to ActivePython 2.3.2 and
I'm running into an issue importing the win32com.client module.
Before installing the new version, I made sure to properly remove old
version (as well as the mx libraries I had installed). I then
installed the new version as a user with the Administrator role. I
know I'm technically not supposed to install to a directory with a
space in the name, but it worked fine for...
|
by: Paul McGuire |
last post by:
Software versions:
Python - 2.3.3
win32all extensions - build 163
OS- Win2000 SP4
I am having trouble in accessing a customer's proprietary COM type library.
After running makepy against the customer's typelib, I am still unable to
create a typed object, getting the following Python traceback (I have to
sanitize the customer's product, I have replaced it with XYZ):
|
by: Patrick |
last post by:
I am investigating a web-based app wherein I wanted to provide html
form frontends to an Excel spreadsheet sitting on a MS Windows server;
with each authenticated HTTP user having thier own "invisible" copy of
the spreadsheet changeable via form POST via COM automation object
(via Python) - then after recalculating - present the spreadsheet
results in HTML. The whole idea to 1: isolate the user from having to
have Excel, and 2: avoiding...
|
by: neblackcat |
last post by:
This is a heads-up on a possible memory corruption type of bug in
recent and present versions of Python/win32com. I dont know if its
general, or specific to using win32com.client to access CDO as my
example does.
My script was tiny - it just opens a MAPI/CDO session and traverses
the email folders - but it keeps crashing Python at random places.
After 2 days of trying everything without success, I've finally
discovered that it depends...
|
by: Sibylle Koczian |
last post by:
Hello,
I've installed Python 2.4 and the win32 extensions, using administrator
rights, under Windows XP in "C:\Programme". As this is a directory
without spaces I didn't expect any problems. But now I can't _use_
win32com as a normal user, because normal users can't write there:
PythonWin 2.4.1 (#65, Mar 30 2005, 09:13:57)
on win32.
Portions Copyright 1994-2004 Mark Hammond (mhammond@skippinet.com.au) -
| |
by: floris.vannee |
last post by:
Hi,
Is it possible to create a com server in python and then access that
server using VB .NET, for example using the following code. A very
basic com server i found in a tutorial about win32com:
class HelloWorld:
_reg_clsid_ = "{7CC9F362-486D-11D1-BB48-0000E838A65F}"
_reg_desc_ = "Python Test COM Server"
|
by: mirandacascade |
last post by:
O/S : Win2K
vsn of Python: 2.4
Hoping to find information that provide information about error
messages being encountered.
Pythonwin session:
Traceback (most recent call last):
File "<interactive input>", line 1, in ?
|
by: vithi |
last post by:
Hi
Any one tell me where I can get (or download) python modules win32com
or win32com.client because I have to use "Dispatch" thanks
|
by: Bill Davy |
last post by:
I am trying to edit Contacts in Outlook. This is so I can transfer numbers
from my address book which is an Excel spreadsheet to my mobile phone. I
came across the following snippet of code which enabled me to the contacts
at least list. I had to root around to discover CdoDefaultFolderContacts
(though it was guessable; how could I enumerate win32com.client.constants?).
I now want to work through the Contacts in Outlook patching in...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |