473,809 Members | 2,776 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Re: Ctypes module - looking for a way to dynamically call exportedfunctio n from a set of dlls

En Tue, 26 Aug 2008 07:42:50 -0300, <du**********@g mail.comescribi �:
Hi,

I'm using the ctypes module to load my dlls.

I have some 10 dlls the names of those are passed to a fucntion which
then loads the passed dll.

Now every dll has a getversion function.
eg: A.dll, B.dll, C.dll are the dlls
and GetVersion functions are as:
A_getVersion(), B_getVersion(),
C_getVesion()

The functionality I'm lookking for is that depending on the dll passed
the right getVersion should be passed.

I'm able to load the all the dlls passed to the function but I'm not
able to call the function names dynamically
Use getattr - same as with any other object.
Suppose some_dll is your loaded DLL, then:

function = getattr(some_dl l, function_name)

--
Gabriel Genellina

Aug 27 '08 #1
0 891

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

Similar topics

1
2593
by: Thomas Heller | last post by:
ctypes 0.9.1 released - Sept 14, 2004 ===================================== Overview ctypes is a ffi (Foreign Function Interface) package for Python 2.3 and higher. ctypes allows to call functions exposed from dlls/shared libraries and has extensive facilities to create, access and manipulate
19
2509
by: Thomas Heller | last post by:
ctypes 0.9.2 released - Oct 28, 2004 ==================================== Overview ctypes is a ffi (Foreign Function Interface) package for Python 2.3 and higher. ctypes allows to call functions exposed from dlls/shared libraries and has extensive facilities to create, access and manipulate
0
2282
by: follower | last post by:
This post is mostly Google-bait for anyone else that might want to compile SpiderMonkey ( libjs / libjs.so / libjs.dylib ) for OS X (10.4.5 in my case) and then use it with Python's ctypes. I can't say this will work for anyone else, but it worked for me... Using: http://ftp.mozilla.org/pub/mozilla.org/js/js-1.5.tar.gz First up:
1
10349
by: marc.wyburn | last post by:
hi all and before I start I apologise if I have this completely muddled up but here goes. I'm trying to call functions from a dll file in a python script but I can't work out what functions are available. I'm using ctypes. I've tried using dir(ctypes_object) but the resultant output looks like a list of standard functions and not the ones I'm looking for. Also how can I tell if the dll was written in C or C++ as I understand C++ dlls...
6
30931
by: Mudcat | last post by:
Hi, I can't figure out why ctypes won't load the DLL I need to use. I've tried everything I can find (and the ctypes website is down at the moment). Here's what I've seen so far. I've added the file arapi51.dll to the system32 directory. However when I tried to access it I see this: Traceback (most recent call last):
2
5330
by: pigmartian | last post by:
(my apologies if this is a repost, but it sure seems like the first attempt disappeared into the ether...) I'm writing a program that uses functionality from two different sets of cdlls which reside in two different directories, call them 'libA.dll' and 'libB.dll'. Although I don't directly use it, both directories contain a dll with the same name, although they aren't in fact identical. Call them, "libC.dll". However, the c-functions...
3
11292
by: Paddy | last post by:
Hi, I am am falling at the first hurdle when trying to access a library using ctypes. I have a file libucdb.so which the file command says is shared object, but I cannot get it to load: Any help would be appreciated: dmccarthy: file /opt/questasim_6.4/questasim/linux/libucdb.a /opt/
0
874
by: dudeja.rajat | last post by:
Hi, I'm using the ctypes module to load my dlls. I have some 10 dlls the names of those are passed to a fucntion which then loads the passed dll. Now every dll has a getversion function. eg: A.dll, B.dll, C.dll are the dlls and GetVersion functions are as:
0
1422
by: Terry Reedy | last post by:
dudeja.rajat@gmail.com wrote: For CPython, an importable module written in C. There is a doc Extending and Embedding the Python Interpreter. But I expect you can write the class in Python with ctypes.
0
9602
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,...
0
10639
Oralloy
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...
0
10376
jinu1996
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...
1
10383
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
10120
tracyyun
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...
0
6881
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();...
0
5688
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
2
3861
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
3015
bsmnconsultancy
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...

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.