From expo at expobrain.net  Mon Dec  1 14:53:29 2008
From: expo at expobrain.net (Daniele Esposti)
Date: Mon, 01 Dec 2008 14:53:29 +0100
Subject: [Python.NET] Cannot initialize OLE
Message-ID: <4933EC59.2010106@expobrain.net>

Hi all,

if I run my application (a wxPython frame with a wx.Activex Flash 
component) with the python.exe in pythonnet folder its work like expected.
Instead, if I run my application with the standard Python interpreter, 
with clr.pyd in DLLs folder and Python.Runtime.dll in the same 
interpreter folder, I get a warnings says Cannot initialize OLE and the 
ActiveX is locked.
I'm using Python 2.5.2 on a Windows XP SP3 machine, PythonNet 
2.0-alpha2-clr2.0 compiled with VisualStudio Express 2008.

Have I missing something ? Only clr.pyd and Python.Runtime.dll are 
needed or there are others resources to copy in Python interpreter folder ?

Thanks in advance

From brian.lloyd at revolutionhealth.com  Mon Dec  1 20:45:05 2008
From: brian.lloyd at revolutionhealth.com (Brian Lloyd)
Date: Mon, 01 Dec 2008 14:45:05 -0500
Subject: [Python.NET] Cannot initialize OLE
In-Reply-To: <4933EC59.2010106@expobrain.net>
Message-ID: <C559A8F1.1A945%brian.lloyd@revolutionhealth.com>

This probably has to do with the threading model being auto-magically
set for you when the CLR is cranked up, absent any prior initialization.

The managed version of python.exe is able to set the threading model
(to MTA I believe) because it is a managed executable. When you import
clr via the standard python.exe, you are probably getting the default
model (STA). I could have those backwards - its been a while ;)

If you are using the win32com extensions, you might be able to import
those, set the threading model for the process, then import clr. Not
sure if that will work, but its worth a shot. I don't think there is
any way to change the threading model once it's set.

-Brian


On 12/1/08 8:53 AM, "Daniele Esposti" <expo at expobrain.net> wrote:

> Hi all,
> 
> if I run my application (a wxPython frame with a wx.Activex Flash
> component) with the python.exe in pythonnet folder its work like expected.
> Instead, if I run my application with the standard Python interpreter,
> with clr.pyd in DLLs folder and Python.Runtime.dll in the same
> interpreter folder, I get a warnings says Cannot initialize OLE and the
> ActiveX is locked.
> I'm using Python 2.5.2 on a Windows XP SP3 machine, PythonNet
> 2.0-alpha2-clr2.0 compiled with VisualStudio Express 2008.
> 
> Have I missing something ? Only clr.pyd and Python.Runtime.dll are
> needed or there are others resources to copy in Python interpreter folder ?
> 
> Thanks in advance
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet

--------------------------------
Brian Lloyd         540.845.2975

brian.lloyd at revolutionhealth.com


From hsu.feihong at yahoo.com  Mon Dec  1 22:13:46 2008
From: hsu.feihong at yahoo.com (Feihong Hsu)
Date: Mon, 1 Dec 2008 13:13:46 -0800 (PST)
Subject: [Python.NET] Cannot initialize OLE
In-Reply-To: <C559A8F1.1A945%brian.lloyd@revolutionhealth.com>
Message-ID: <92147.52637.qm@web34805.mail.mud.yahoo.com>

I believe Brian's assessment is correct. The easiest way to handle this is to use pywin32's pythoncom module to set the threading model. You can find a sample of how to do that here:

http://www.ironpython.info/index.php/Using_the_WebBrowser_Widget

In the sample, the WebBrowser widget (which uses ActiveX underneath) is embedded in a form. By invoking pythoncom.CoInitialize(), we set the threading model to STA which prevents the program from crashing when it initializes the form.

--- On Mon, 12/1/08, Brian Lloyd <brian.lloyd at revolutionhealth.com> wrote:
From: Brian Lloyd <brian.lloyd at revolutionhealth.com>
Subject: Re: [Python.NET] Cannot initialize OLE
To: "Daniele Esposti" <expo at expobrain.net>, pythondotnet at python.org
Date: Monday, December 1, 2008, 1:45 PM

This probably has to do with the threading model being auto-magically
set for you when the CLR is cranked up, absent any prior initialization.

The managed version of python.exe is able to set the threading model
(to MTA I believe) because it is a managed executable. When you import
clr via the standard python.exe, you are probably getting the default
model (STA). I could have those backwards - its been a while ;)

If you are using the win32com extensions, you might be able to import
those, set the threading model for the process, then import clr. Not
sure if that will work, but its worth a shot. I don't think there is
any way to change the threading model once it's set.

-Brian


On 12/1/08 8:53 AM, "Daniele Esposti" <expo at expobrain.net>
wrote:

> Hi all,
> 
> if I run my application (a wxPython frame with a wx.Activex Flash
> component) with the python.exe in pythonnet folder its work like expected.
> Instead, if I run my application with the standard Python interpreter,
> with clr.pyd in DLLs folder and Python.Runtime.dll in the same
> interpreter folder, I get a warnings says Cannot initialize OLE and the
> ActiveX is locked.
> I'm using Python 2.5.2 on a Windows XP SP3 machine, PythonNet
> 2.0-alpha2-clr2.0 compiled with VisualStudio Express 2008.
> 
> Have I missing something ? Only clr.pyd and Python.Runtime.dll are
> needed or there are others resources to copy in Python interpreter folder
?
> 
> Thanks in advance
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet

--------------------------------
Brian Lloyd         540.845.2975

brian.lloyd at revolutionhealth.com

_________________________________________________
Python.NET mailing list - PythonDotNet at python.org
http://mail.python.org/mailman/listinfo/pythondotnet



      
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From helink at sandia.gov  Tue Dec  2 01:04:18 2008
From: helink at sandia.gov (Hamilton Link)
Date: Mon, 1 Dec 2008 17:04:18 -0700
Subject: [Python.NET] questions from a new PythonNet user
In-Reply-To: <1c0b4a390811281932ka63c15ex24bafa689df499dc@mail.gmail.com>
References: <491E282F.4040202@sandia.gov>
	<1c0b4a390811281932ka63c15ex24bafa689df499dc@mail.gmail.com>
Message-ID: <49347B82.5010608@sandia.gov>

Brian Lloyd wrote:
> On Fri, Nov 14, 2008 at 8:38 PM, Hamilton Link <helink at sandia.gov 
> <mailto:helink at sandia.gov>> wrote:
>
>     ...
>
>  
>
>
>     I suppose the first question is,
>     Why are there no apparent build instructions in the distribution?
>
>
> Hi there - unfortunately I think the problem is that it would take a 
> large effort
> to come up with a build process that works reliably for all possible 
> platforms
> (mono, win32), python versions, unicode requirements, build 
> toolchains, etc.
> Consequently, the docs are kind of all over the place.
>
> Thus far, while python.net <http://python.net> has been useful for 
> some people, I don't think the
> user community is large enough yet for any group of people to get 
> together to
> put together anything really comprehensive in terms of distribution 
> tools or
> docs.
>
> If you're willing to write some, I'm willing to give you whatever 
> access you need to
> get them in svn ;) If anyone thinks a lighter weight tool would help, 
> we could set up
> a mediawiki instance or something as well...

Python.net serves a niche's niche's niche, so I don't expect it will 
ever have too many users.  But SVN access would be great, thanks.  I 
will try to put in a README of some sort that combines the relevant 
documentation I can find plus whatever works for me into a 
(disclaimer-ed) set of build instructions.

Also if I am able to do a before/after test of the .net SP1 patch would 
anyone mind if I committed that into the repository?

Also, if the SP1 patch and anything else goes in to the trunk (and if I 
can figure out how to do it) I will package a new distro that includes 
the setup.py script and the patches and I'll put it on sourceforge as 
alpha 3 or some such.  But don't hold your breath until it's already 
done, 'k?

>  
>
>     How actively maintained is PythonNet at the moment?
>
>
> I have, and will continue to, give those folks access to
> sourceforge etc. to improve the platform as they are able. But my 
> impression is
> that where we are now is a situation where people can "scratch their 
> own itch", but
> there is no organized effort to track the .NET or mono platform 
> changes going
> forward. My opinion is that it will take an invested champion to make 
> that happen.
>
> FWIW, Resolver and others seem to be using some of the code and 
> concepts from
> python.net <http://python.net> to further use of native extensions 
> with IronPython -- that may also be a
> good avenue to explore if you're looking for long-term supportability 
> (and I'm sure
> resolver would welcome the help!)
>
> -Brian
>
Well, for what it's worth, for the near future I have a vested interest 
in making sure python.net works on linux, windows, and os x.  IronPython 
isn't an option for me.  Other good news is that mono now claims 
approximate 2.0 compliance and so the underpinnings of the CLR shouldn't 
change for a good while yet, minimizing portability issues.  The bad 
news is most of my time is being spent on other projects than this one.

Beyond extensive testing we'll see what happens.  I can't promise I'll 
be in a place to debug any problems, since I'm not really a python 
programmer.  And I _really_ can't promise upgrades for python 2.6 (if it 
doesn't already work... haven't tried it) or python 3.x.

h







From JBurnett at blizzard.com  Tue Dec  2 01:43:34 2008
From: JBurnett at blizzard.com (John Burnett)
Date: Mon, 1 Dec 2008 16:43:34 -0800
Subject: [Python.NET] questions from a new PythonNet user
In-Reply-To: <49347B82.5010608@sandia.gov>
References: <491E282F.4040202@sandia.gov><1c0b4a390811281932ka63c15ex24bafa689df499dc@mail.gmail.com>
	<49347B82.5010608@sandia.gov>
Message-ID: <44055E60E3A2174080A3086D5CD4D03907485D44@BL-EXCHANGE.corp.blizzard.net>

Getting a new "official" distribution up would be great - on this end, I know Joe Frayne and myself have provided several patches that let Python.net run on 64bit, fixes bugs, etc, some of which others seem to have run into when just downloading the alpha2 zip...

John

-----Original Message-----
From: pythondotnet-bounces+jburnett=blizzard.com at python.org [mailto:pythondotnet-bounces+jburnett=blizzard.com at python.org] On Behalf Of Hamilton Link
Sent: Monday, December 01, 2008 4:04 PM
To: Brian Lloyd
Cc: pythondotnet at python.org
Subject: Re: [Python.NET] questions from a new PythonNet user

Brian Lloyd wrote:
> On Fri, Nov 14, 2008 at 8:38 PM, Hamilton Link <helink at sandia.gov 
> <mailto:helink at sandia.gov>> wrote:
>
>     ...
>
>  
>
>
>     I suppose the first question is,
>     Why are there no apparent build instructions in the distribution?
>
>
> Hi there - unfortunately I think the problem is that it would take a 
> large effort
> to come up with a build process that works reliably for all possible 
> platforms
> (mono, win32), python versions, unicode requirements, build 
> toolchains, etc.
> Consequently, the docs are kind of all over the place.
>
> Thus far, while python.net <http://python.net> has been useful for 
> some people, I don't think the
> user community is large enough yet for any group of people to get 
> together to
> put together anything really comprehensive in terms of distribution 
> tools or
> docs.
>
> If you're willing to write some, I'm willing to give you whatever 
> access you need to
> get them in svn ;) If anyone thinks a lighter weight tool would help, 
> we could set up
> a mediawiki instance or something as well...

Python.net serves a niche's niche's niche, so I don't expect it will 
ever have too many users.  But SVN access would be great, thanks.  I 
will try to put in a README of some sort that combines the relevant 
documentation I can find plus whatever works for me into a 
(disclaimer-ed) set of build instructions.

Also if I am able to do a before/after test of the .net SP1 patch would 
anyone mind if I committed that into the repository?

Also, if the SP1 patch and anything else goes in to the trunk (and if I 
can figure out how to do it) I will package a new distro that includes 
the setup.py script and the patches and I'll put it on sourceforge as 
alpha 3 or some such.  But don't hold your breath until it's already 
done, 'k?

>  
>
>     How actively maintained is PythonNet at the moment?
>
>
> I have, and will continue to, give those folks access to
> sourceforge etc. to improve the platform as they are able. But my 
> impression is
> that where we are now is a situation where people can "scratch their 
> own itch", but
> there is no organized effort to track the .NET or mono platform 
> changes going
> forward. My opinion is that it will take an invested champion to make 
> that happen.
>
> FWIW, Resolver and others seem to be using some of the code and 
> concepts from
> python.net <http://python.net> to further use of native extensions 
> with IronPython -- that may also be a
> good avenue to explore if you're looking for long-term supportability 
> (and I'm sure
> resolver would welcome the help!)
>
> -Brian
>
Well, for what it's worth, for the near future I have a vested interest 
in making sure python.net works on linux, windows, and os x.  IronPython 
isn't an option for me.  Other good news is that mono now claims 
approximate 2.0 compliance and so the underpinnings of the CLR shouldn't 
change for a good while yet, minimizing portability issues.  The bad 
news is most of my time is being spent on other projects than this one.

Beyond extensive testing we'll see what happens.  I can't promise I'll 
be in a place to debug any problems, since I'm not really a python 
programmer.  And I _really_ can't promise upgrades for python 2.6 (if it 
doesn't already work... haven't tried it) or python 3.x.

h






_________________________________________________
Python.NET mailing list - PythonDotNet at python.org
http://mail.python.org/mailman/listinfo/pythondotnet

From helink at sandia.gov  Wed Dec  3 02:05:45 2008
From: helink at sandia.gov (Hamilton Link)
Date: Tue, 2 Dec 2008 18:05:45 -0700
Subject: [Python.NET] ubuntu clarification
Message-ID: <4935DB69.3020808@sandia.gov>

I figured out the python.exe is a dynamically-linked python for use 
under systems like ubuntu where the provided distribution is statically 
linked.  But I had already installed an overriding distribution of 
python from sources.

FYI, ubuntu's distribution is this way because for whatever reason it is 
configured with --disable-shared.  If you (like me) check out python 
from sources and configure a version with --enable-shared and install 
it, you don't have to use python.exe.  Not that I'm anti-python.exe, but 
I wanted to know precisely what was different under ubuntu, and it turns 
out this is the necessary and sufficient configuration change.

h



From expo at expobrain.net  Wed Dec  3 02:18:37 2008
From: expo at expobrain.net (Daniele Esposti)
Date: Wed, 03 Dec 2008 02:18:37 +0100
Subject: [Python.NET] Cannot initialize OLE
In-Reply-To: <92147.52637.qm@web34805.mail.mud.yahoo.com>
References: <92147.52637.qm@web34805.mail.mud.yahoo.com>
Message-ID: <4935DE6D.4090509@expobrain.net>

Feihong Hsu ha scritto:
> I believe Brian's assessment is correct. The easiest way to handle this 
> is to use pywin32's pythoncom module to set the threading model. You can 
> find a sample of how to do that here:
> 
> http://www.ironpython.info/index.php/Using_the_WebBrowser_Widget
> 
> In the sample, the WebBrowser widget (which uses ActiveX underneath) is 
> embedded in a form. By invoking pythoncom.CoInitialize(), we set the 
> threading model to STA which prevents the program from crashing when it 
> initializes the form.
> 

Ok,

import pythoncom
pythoncom.CoInitialize()


and every it's working right.
Thank's to all

From helink at sandia.gov  Wed Dec  3 02:18:30 2008
From: helink at sandia.gov (Hamilton Link)
Date: Tue, 2 Dec 2008 18:18:30 -0700
Subject: [Python.NET] path question:  clr.so being picky about paths
Message-ID: <4935DE66.3090605@sandia.gov>

In the readme, it says that "python for .net uses the pythonpath 
(sys.path) to look for assemblies to load, in addition to the usual 
application base and the gac.

Unfortunately at the moment the assembly I'm trying to load is... clr.pyd.

If I run python (ubuntu, mono, rebuilt python 2.5.2 with 
--enable-shared) from a directory where clr.pyd and Python.Runtime.dll 
reside, with clr.so in the lib/python2.5/site-packages folder... 
everything works.  I can import clr and System.Drawing and make a 
System.Drawing.Point instance.

If I run python from a directory without these libraries, in particular 
if I'm in my home folder somewhere and clr.pyd and Python.Runtime.dll 
are in the lib/python2.5/site-packages folder where I want them... 
import clr gives me an error trying to load some unspecified module (I 
suspect clr.pyd).

Am I supposed to set some path or other for mono in contravention of the 
docs?  I suspect that either clr.so can't find mono, or mono is being 
loaded and then can't find clr.pyd.

I will continue to fiddle with this, probably Friday, if I don't get a 
response, but it seems like there's probably a simple answer that I'm 
overlooking.  Setting MONO_PATH to my site-packages folder (the variable 
was unbound before) didn't fix it.

h


From Jfrayne at blizzard.com  Wed Dec  3 03:08:26 2008
From: Jfrayne at blizzard.com (Joe Frayne)
Date: Tue, 2 Dec 2008 18:08:26 -0800
Subject: [Python.NET] path question:  clr.so being picky about paths
In-Reply-To: <4935DE66.3090605@sandia.gov>
References: <4935DE66.3090605@sandia.gov>
Message-ID: <07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>

I got it working on MacOSX under Mono. I'm pretty sure the clr.pyd is only for Windows. I think you just need the Python.Runtime.dll, the Python.Runtime.dll.config, and the clr.so in the site-packages folder.

Joe

-----Original Message-----
From: pythondotnet-bounces+jfrayne=blizzard.com at python.org [mailto:pythondotnet-bounces+jfrayne=blizzard.com at python.org] On Behalf Of Hamilton Link
Sent: Tuesday, December 02, 2008 5:19 PM
To: pythondotnet at python.org
Subject: [Python.NET] path question: clr.so being picky about paths

In the readme, it says that "python for .net uses the pythonpath 
(sys.path) to look for assemblies to load, in addition to the usual 
application base and the gac.

Unfortunately at the moment the assembly I'm trying to load is... clr.pyd.

If I run python (ubuntu, mono, rebuilt python 2.5.2 with 
--enable-shared) from a directory where clr.pyd and Python.Runtime.dll 
reside, with clr.so in the lib/python2.5/site-packages folder... 
everything works.  I can import clr and System.Drawing and make a 
System.Drawing.Point instance.

If I run python from a directory without these libraries, in particular 
if I'm in my home folder somewhere and clr.pyd and Python.Runtime.dll 
are in the lib/python2.5/site-packages folder where I want them... 
import clr gives me an error trying to load some unspecified module (I 
suspect clr.pyd).

Am I supposed to set some path or other for mono in contravention of the 
docs?  I suspect that either clr.so can't find mono, or mono is being 
loaded and then can't find clr.pyd.

I will continue to fiddle with this, probably Friday, if I don't get a 
response, but it seems like there's probably a simple answer that I'm 
overlooking.  Setting MONO_PATH to my site-packages folder (the variable 
was unbound before) didn't fix it.

h

_________________________________________________
Python.NET mailing list - PythonDotNet at python.org
http://mail.python.org/mailman/listinfo/pythondotnet

From helink at sandia.gov  Wed Dec  3 07:17:57 2008
From: helink at sandia.gov (Link, Hamilton)
Date: Tue, 2 Dec 2008 23:17:57 -0700
Subject: [Python.NET] path question: clr.so being picky about paths
In-Reply-To: <07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>
References: <4935DE66.3090605@sandia.gov>,
	<07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>
Message-ID: <796FAD48C7891F43A943B67DF279C58927E5F440B4@ES04SNLNT.srn.sandia.gov>

I'll go back and look again, but as far as I could tell from the .il code and the .c code for clr.pyd and clr.so...

- clr.so bootstraps mono (under Windows the OS knows how to dlload a .net assembly already) to enable .net assembly extensions and I assumed perhaps recklessly that it laterals to clr.pyd
- clr.pyd loads Python.Runtime.dll
- Python.Runtime.dll, regardless of platform, turns around and uses P/Invoke to connect into the libpython2.5.so/dll, and then you're all set

Maybe a dev can confirm or correct me on this, and elaborate a bit?  I can certainly try setting aside clr.pyd and I'll keep studying the code, but I guess I didn't notice if clr.so knew to find Python.Runtime.dll after it set up mono.

h
________________________________________
From: Joe Frayne [Jfrayne at blizzard.com]
Sent: Tuesday, December 02, 2008 7:08 PM
To: Link, Hamilton; pythondotnet at python.org
Subject: RE: [Python.NET] path question: clr.so being picky about paths

I got it working on MacOSX under Mono. I'm pretty sure the clr.pyd is only for Windows. I think you just need the Python.Runtime.dll, the Python.Runtime.dll.config, and the clr.so in the site-packages folder.

Joe

-----Original Message-----
From: pythondotnet-bounces+jfrayne=blizzard.com at python.org [mailto:pythondotnet-bounces+jfrayne=blizzard.com at python.org] On Behalf Of Hamilton Link
Sent: Tuesday, December 02, 2008 5:19 PM
To: pythondotnet at python.org
Subject: [Python.NET] path question: clr.so being picky about paths

In the readme, it says that "python for .net uses the pythonpath
(sys.path) to look for assemblies to load, in addition to the usual
application base and the gac.

Unfortunately at the moment the assembly I'm trying to load is... clr.pyd.

If I run python (ubuntu, mono, rebuilt python 2.5.2 with
--enable-shared) from a directory where clr.pyd and Python.Runtime.dll
reside, with clr.so in the lib/python2.5/site-packages folder...
everything works.  I can import clr and System.Drawing and make a
System.Drawing.Point instance.

If I run python from a directory without these libraries, in particular
if I'm in my home folder somewhere and clr.pyd and Python.Runtime.dll
are in the lib/python2.5/site-packages folder where I want them...
import clr gives me an error trying to load some unspecified module (I
suspect clr.pyd).

Am I supposed to set some path or other for mono in contravention of the
docs?  I suspect that either clr.so can't find mono, or mono is being
loaded and then can't find clr.pyd.

I will continue to fiddle with this, probably Friday, if I don't get a
response, but it seems like there's probably a simple answer that I'm
overlooking.  Setting MONO_PATH to my site-packages folder (the variable
was unbound before) didn't fix it.

h

_________________________________________________
Python.NET mailing list - PythonDotNet at python.org
http://mail.python.org/mailman/listinfo/pythondotnet


From pieters at randcontrols.co.za  Wed Dec  3 08:51:21 2008
From: pieters at randcontrols.co.za (Pieter Steenekamp)
Date: Wed, 3 Dec 2008 09:51:21 +0200
Subject: [Python.NET] How to use a Python function that returns a double
	array in VB vie C++
Message-ID: <003c01c9551b$f8025470$0100000a@pieterLaptop>

Hi all,

I want to use a Python function that returns a double array in VB dot net 
via embedding Python in C++ dot net. Using the CLR it is easy to access C++ 
from VB. Then also I don't have a problem if the Python function returns a 
single variable of type double, using the following lines in my C++ code:
            myPythonObjectPointer = PyObject_CallObject(pFunc, pArgs);

            myCppDoubleVariable = PyFloat_AsDouble(myPyObjectPointer);

(I have obviously done all the required thingies as per the Python 
documentation)

I can further achieve what I want by changing the Python function to a 
number of functions, each returning a single double variable and call them 
one by one, using code like above, and then passing them into an array in 
C++, but I would prefer a more elegant way of doing it, because my return 
variable could have hundreds, if not thousands, of values.



Can somebody help me please.



Thanks



Pieter Steenekamp.





From honey33145 at gmail.com  Wed Dec  3 11:41:41 2008
From: honey33145 at gmail.com (navneet khanna)
Date: Wed, 3 Dec 2008 16:11:41 +0530
Subject: [Python.NET] Problem loading vb.net DLL in Python
Message-ID: <d7e3f2e80812030241o10eb89d9l1cac750861f0109a@mail.gmail.com>

Hello Everybody

I am trying to load vb.net dll in Python, but its showing errors.

>>> from ctypes import *
>>> dll = windll.Userdll
>>> dll
<WinDLL 'Userdll', handle 1050000 at cade50>
>>> dll_function1 = dll.xml_load("C:\test.xml")

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    dll_function1 = dll.xml_init("C:\test.xml")
  File "C:\Python25\lib\ctypes\__init__.py", line 361, in __getattr__
    func = self.__getitem__(name)
  File "C:\Python25\lib\ctypes\__init__.py", line 366, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'xml_init' not found

Userdll is a dll created in vb.net. xml_load is a function in it. I tried
loading this dll in vb.net its working fine. I accessed in vb.net by
referencing in settings.
Do we have any such option in Python?
Can I call the class of vb.net dll in Python , so that i can create its
object and access its functions.
Please help me out. I would be grateful to you.

Thanks
Navneet
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From sambasivareddy.s at patni.com  Wed Dec  3 11:59:34 2008
From: sambasivareddy.s at patni.com (sambasivareddy)
Date: Wed, 3 Dec 2008 16:29:34 +0530
Subject: [Python.NET] Problem loading vb.net DLL in Python
In-Reply-To: <d7e3f2e80812030241o10eb89d9l1cac750861f0109a@mail.gmail.com>
Message-ID: <012501c95536$39e98510$750ba8c0@patni.com>

Hi Navneet,

 

If I understand u r problem correct. Don't use python...use python.net..have
a look in to below link.u will get clear idea on it.

 

http://pythonnet.sourceforge.net/readme.html

 

Above link they clearly mention how to load/import dlls .plz go through it.

 

Regards,

Sambu.

  _____  

From: pythondotnet-bounces+sambasivareddy.s=patni.com at python.org
[mailto:pythondotnet-bounces+sambasivareddy.s=patni.com at python.org] On
Behalf Of navneet khanna
Sent: Wednesday, December 03, 2008 4:12 PM
To: pythondotnet at python.org
Subject: [Python.NET] Problem loading vb.net DLL in Python

 

Hello Everybody

I am trying to load vb.net dll in Python, but its showing errors.

>>> from ctypes import *
>>> dll = windll.Userdll
>>> dll
<WinDLL 'Userdll', handle 1050000 at cade50>
>>> dll_function1 = dll.xml_load("C:\test.xml")

Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    dll_function1 = dll.xml_init("C:\test.xml")
  File "C:\Python25\lib\ctypes\__init__.py", line 361, in __getattr__
    func = self.__getitem__(name)
  File "C:\Python25\lib\ctypes\__init__.py", line 366, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'xml_init' not found

Userdll is a dll created in vb.net. xml_load is a function in it. I tried
loading this dll in vb.net its working fine. I accessed in vb.net by
referencing in settings. 
Do we have any such option in Python?
Can I call the class of vb.net dll in Python , so that i can create its
object and access its functions.
Please help me out. I would be grateful to you.

Thanks
Navneet


_____________________________________________________________________ 

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From lists at cheimes.de  Wed Dec  3 13:13:04 2008
From: lists at cheimes.de (Christian Heimes)
Date: Wed, 03 Dec 2008 13:13:04 +0100
Subject: [Python.NET] path question: clr.so being picky about paths
In-Reply-To: <796FAD48C7891F43A943B67DF279C58927E5F440B4@ES04SNLNT.srn.sandia.gov>
References: <4935DE66.3090605@sandia.gov>,
	<07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>
	<796FAD48C7891F43A943B67DF279C58927E5F440B4@ES04SNLNT.srn.sandia.gov>
Message-ID: <gh5t4h$635$1@ger.gmane.org>

Link, Hamilton wrote:
> - clr.so bootstraps mono (under Windows the OS knows how to dlload a .net assembly already) to enable .net assembly extensions and I assumed perhaps recklessly that it laterals to clr.pyd

The code in src/monoclr is compiled to a shared library (.so on most 
Unices and .dyload on Mac OS X) and a standalone Python executable. The 
library is a Python extension which initializes Mono, loads the 
Python.Runtime assembly and initializes the rest of PythonDotNET. 
Finally the clr module is replaced by the clr module from PythonDotNET.

However the code is currently broken. svn blame points to r98 jfrayne. :)

> - clr.pyd loads Python.Runtime.dll

clr.pyd is a Windows and .NET only Python extension that loads the runtime.

The clr.so/pyd/dyload module is only required when you want to embed 
.NET code into CPython. For the other way around it's not required.

> - Python.Runtime.dll, regardless of platform, turns around and uses P/Invoke to connect into the libpython2.5.so/dll, and then you're all set

Yeah. The Python.Runtime assembly also provides the clr module you can 
see inside Python and the import hook to import namespaces from .NET 
assemblies.

Christian


From helink at sandia.gov  Wed Dec  3 19:12:15 2008
From: helink at sandia.gov (Hamilton Link)
Date: Wed, 3 Dec 2008 11:12:15 -0700
Subject: [Python.NET] path question: clr.so being picky about paths
In-Reply-To: <gh5t4h$635$1@ger.gmane.org>
References: <4935DE66.3090605@sandia.gov>,
	<07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>
	<796FAD48C7891F43A943B67DF279C58927E5F440B4@ES04SNLNT.srn.sandia.gov>
	<gh5t4h$635$1@ger.gmane.org>
Message-ID: <4936CBFF.5070501@sandia.gov>

Sure enough, under ubuntu (though I'm about to switch to fedora) I only 
need clr.so and Python.Runtime.dll.  So, obviously I have some more 
digging to do on how this all works.  But how is clr.so broken 
precisely?  It appears to work...

h

Christian Heimes wrote:
> Link, Hamilton wrote:
>   
>> - clr.so bootstraps mono (under Windows the OS knows how to dlload a .net assembly already) to enable .net assembly extensions and I assumed perhaps recklessly that it laterals to clr.pyd
>>     
>
> The code in src/monoclr is compiled to a shared library (.so on most 
> Unices and .dyload on Mac OS X) and a standalone Python executable. The 
> library is a Python extension which initializes Mono, loads the 
> Python.Runtime assembly and initializes the rest of PythonDotNET. 
> Finally the clr module is replaced by the clr module from PythonDotNET.
>
> However the code is currently broken. svn blame points to r98 jfrayne. :)
>
>   
>> - clr.pyd loads Python.Runtime.dll
>>     
>
> clr.pyd is a Windows and .NET only Python extension that loads the runtime.
>
> The clr.so/pyd/dyload module is only required when you want to embed 
> .NET code into CPython. For the other way around it's not required.
>
>   
>> - Python.Runtime.dll, regardless of platform, turns around and uses P/Invoke to connect into the libpython2.5.so/dll, and then you're all set
>>     
>
> Yeah. The Python.Runtime assembly also provides the clr module you can 
> see inside Python and the import hook to import namespaces from .NET 
> assemblies.
>
> Christian
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet
>
>
>   



From honey33145 at gmail.com  Thu Dec  4 06:55:41 2008
From: honey33145 at gmail.com (navneet khanna)
Date: Thu, 4 Dec 2008 11:25:41 +0530
Subject: [Python.NET] Access functions in dll class
Message-ID: <d7e3f2e80812032155g7bedeb6asd8797daf0eb3383b@mail.gmail.com>

Hello Everybody

I am able to import the dll and able to access the class of the dll. But
when I am trying to access the methods in the dll its showing error.

#Class1 is the class in dll and next is the function.
Class1.Bin_To_Dec("11")

Traceback (most recent call last):
  File "<pyshell#5>", line 1, in <module>
    Class1.Bin_To_Dec("11")
TypeError: No method matches given arguments

Please help me to find out where am i wrong? Do I need to create object of
dll class and then access it? If yes then how can I access it?

Thanks
Navneet
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From honey33145 at gmail.com  Thu Dec  4 10:20:47 2008
From: honey33145 at gmail.com (navneet khanna)
Date: Thu, 4 Dec 2008 14:50:47 +0530
Subject: [Python.NET] TypeError: not enough arguments
Message-ID: <d7e3f2e80812040120g2be4aac3w7d1b2408345192b0@mail.gmail.com>

Hello Everbody

I have imported a class from vb.net dll in Python. I am able to import all
the functions, but its showing such error when trying to access it.
g() is a simple function in dll which takes no argument but returns a
string.

print Class1.g()

Traceback (most recent call last):
  File "<pyshell#29>", line 1, in <module>
    print Class1.g()
TypeError: not enough arguments

Please help me out.
Thanks
Navneet
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From sambasivareddy.s at patni.com  Wed Dec  3 11:51:40 2008
From: sambasivareddy.s at patni.com (sambasivareddy)
Date: Wed, 3 Dec 2008 16:21:40 +0530
Subject: [Python.NET] How to write a string with required color in a file
	with python.net?
Message-ID: <011501c95535$20b302c0$750ba8c0@patni.com>

 

Hi all,

 

I have couple of double on python futures .Quires listed below:

*	How to write a particular  string with required/selected color in a
file with python.net?

 Which module I need to use it? How to set color for particular string in
file? 

---------------------------------

file=open("C:\\test\\TestResult.txt","w")

file.writelines("testcase1  pass \n")

file.writelines("testcase2  Faile \n")

file.close()

-----------------------------

I want output like this in file:

testcase1  pass  

testcase2  Faile

 

*	How to create .exe file in python.net?

I have tried with py2exe module but it is not supporting with python.net 

 

if anyone have any information or code on the same queries plz send it.
thanks in advance.

 

Regards,

sambu

 


_____________________________________________________________________ 

This e-mail message may contain proprietary, confidential or legally privileged information for the sole use of the person or entity to whom this message was originally addressed. Any review, e-transmission dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error kindly delete this e-mail from your records. If it appears that this mail has been forwarded to you without proper authority, please notify us immediately at netadmin at patni.com and delete this mail.
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From honey33145 at gmail.com  Wed Dec  3 14:20:56 2008
From: honey33145 at gmail.com (navneet khanna)
Date: Wed, 3 Dec 2008 18:50:56 +0530
Subject: [Python.NET] Where does the clr in IronPython look the dll
Message-ID: <d7e3f2e80812030520t3679e671s9a0c9b21c047b8a9@mail.gmail.com>

Hello Everybody

I am trying to import dll with clr.AddReference("TCdll")
I am getting the following error.

Traceback (most recent call last):
  File "<pyshell#26>", line 1, in <module>
    clr.AddReference("TCdll")
FileNotFoundException: Unable to find assembly 'TCdll'.
   at Python.Runtime.CLRModule.AddReference(String name)

I have loaded the dll in system32 folder. Have I loaded the dll at the right
place or do I need to place it anywhere else?
Waiting for your replies.

Regards
Navneet
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From lists at cheimes.de  Thu Dec  4 15:09:03 2008
From: lists at cheimes.de (Christian Heimes)
Date: Thu, 04 Dec 2008 15:09:03 +0100
Subject: [Python.NET] path question: clr.so being picky about paths
In-Reply-To: <4936CBFF.5070501@sandia.gov>
References: <4935DE66.3090605@sandia.gov>,
	<07A480006269DF4CA5433912783454F704FFB025@BL-EXCHANGE.corp.blizzard.net>	<796FAD48C7891F43A943B67DF279C58927E5F440B4@ES04SNLNT.srn.sandia.gov>	<gh5t4h$635$1@ger.gmane.org>
	<4936CBFF.5070501@sandia.gov>
Message-ID: <gh8o9v$b01$1@ger.gmane.org>

Hamilton Link wrote:
> Sure enough, under ubuntu (though I'm about to switch to fedora) I only 
> need clr.so and Python.Runtime.dll.  So, obviously I have some more 
> digging to do on how this all works.  But how is clr.so broken 
> precisely?  It appears to work...

There is an error inside the Makefile for clr.so. It can't be build 
anymore because it's using a wrong argument when linking the object file.

Christian


From honey33145 at gmail.com  Fri Dec 12 06:52:45 2008
From: honey33145 at gmail.com (navneet khanna)
Date: Fri, 12 Dec 2008 11:22:45 +0530
Subject: [Python.NET] concept of creating structures in python
Message-ID: <d7e3f2e80812112152x2c061a5bl44dd5fbe80380669@mail.gmail.com>

Hello Everybody

I want to create a structure within a structure i.e. nested structures in
python.
I tried with everything but its not working.
my code is like this:

class L(Structure):

    def __init__(self,Name='ND',Addr=0,ds_obj = D()):

        self.Name = Name
        self.Addr = Addr
        self.ds_obj = ds_obj


class D(Structure):

    def  __init__(self,dataName='ND',index = 0,ele_obj=E()):

        self.dataName = dataName
        self.index = index
        self.ele_obj = ele_obj


these are two structures. I want to refer D structure in L one and use it. I
want to access the value of D structure like L.D.index = 0.

Please help me

Thanks in advance
Navneet
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From craig_farrow at sil.org  Fri Dec 12 09:49:00 2008
From: craig_farrow at sil.org (Craig Farrow)
Date: Fri, 12 Dec 2008 16:49:00 +0800
Subject: [Python.NET] Where does the clr in IronPython look the dll
In-Reply-To: <d7e3f2e80812030520t3679e671s9a0c9b21c047b8a9@mail.gmail.com>
References: <d7e3f2e80812030520t3679e671s9a0c9b21c047b8a9@mail.gmail.com>
Message-ID: <4942257C.407@sil.org>


The dll needs to be on the Python path (sys.path). You can either add to
the path with sys.path.append("c:\....") or put your dll in a folder in
the Python site-packages directory and add a .pth file (for Python.NET, 
but not IronPython
  -- it doesn't recognise the .pth files).

Regards,

Craig.

3/12/2008 9:20 p.m. d?, navneet khanna wrote:
> Hello Everybody
>
> I am trying to import dll with clr.AddReference("TCdll")
> I am getting the following error.
>
> Traceback (most recent call last):
>   File "<pyshell#26>", line 1, in <module>
>     clr.AddReference("TCdll")
> FileNotFoundException: Unable to find assembly 'TCdll'.
>    at Python.Runtime.CLRModule.AddReference(String name)
>
> I have loaded the dll in system32 folder. Have I loaded the dll at the 
> right place or do I need to place it anywhere else?
> Waiting for your replies.
>
> Regards
> Navneet
> ------------------------------------------------------------------------
>
> _________________________________________________
> Python.NET mailing list - PythonDotNet at python.org
> http://mail.python.org/mailman/listinfo/pythondotnet



From davidgshi at yahoo.co.uk  Thu Dec 18 16:45:44 2008
From: davidgshi at yahoo.co.uk (David Shi)
Date: Thu, 18 Dec 2008 15:45:44 +0000 (GMT)
Subject: [Python.NET] Extracting data from XML containing CDATA and store
	data in a .dbf file
Message-ID: <987290.25265.qm@web26304.mail.ukl.yahoo.com>









I am looking for advice/efficient script to extract data from XML containing CDATA.
?
I wish to extract all the data and store it in a .dbf file.
?
Regards.
?
David



      
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From expo at expobrain.net  Thu Dec 18 17:11:58 2008
From: expo at expobrain.net (Daniele Esposti)
Date: Thu, 18 Dec 2008 17:11:58 +0100
Subject: [Python.NET] Extracting data from XML containing CDATA and
 store data in a .dbf file
In-Reply-To: <987290.25265.qm@web26304.mail.ukl.yahoo.com>
References: <987290.25265.qm@web26304.mail.ukl.yahoo.com>
Message-ID: <494A764E.2090406@expobrain.net>

David Shi ha scritto:
> 
> 
>     I am looking for advice/efficient script to extract data from XML
>     containing CDATA.
>      
>     I wish to extract all the data and store it in a .dbf file.
>      


Using System.XML you can iterate over all nodes and call InnerText