From kb at sparklight.com  Wed Nov  4 18:22:46 2015
From: kb at sparklight.com (Ken Brooks)
Date: Wed, 4 Nov 2015 15:22:46 -0800
Subject: [python-win32] Building my own C extension
Message-ID: <AFBBF322DAA54B8FBD17C023D14D8D07@KenPC>

I have joined this list because I need to learn how to rebuild my antiquated Python extension properly for Windows. I need to build for Python 2.7, which is old and relies upon old compilers. I downloaded the suggested compiler:

http://download.microsoft.com/download/A/5/4/A54BADB6-9C3F-478D-8657-93B3FC9FE62D/vcsetup.exe

I downloaded the thing that is supposed to correctly glue it to Python:

https://download.microsoft.com/download/7/9/6/796EF2E4-801B-4FC4-AB28-B59FBF6D907B/VCForPython27.msi

But I can't see where to go from there.

In my old world I never actually learned how to use distutils or setuptools; I was just building my extension with my VC and then shoving it into site-packages. As I read the documentation for distutils and setuptools, I am SO LOST! I see much about how to install someone else's package, but little about how to create and script my own package for building a Python extension written in C. Please, can someone point me to a good sample extension package that I can copy from?  A "hello world" or something? 

Apart from that, can someone please point me to the documentation for the current "right" way of building things, as an extension developer?

Thanks in advance,

Ken
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From zturner at google.com  Wed Nov  4 20:33:39 2015
From: zturner at google.com (Zachary Turner)
Date: Thu, 05 Nov 2015 01:33:39 +0000
Subject: [python-win32] Building my own C extension
In-Reply-To: <AFBBF322DAA54B8FBD17C023D14D8D07@KenPC>
References: <AFBBF322DAA54B8FBD17C023D14D8D07@KenPC>
Message-ID: <CAAErz9i8AX02OWaS+3S4jhj_BuL=Y8fXCGUXwH8Q-dXGje77gA@mail.gmail.com>

Two questions:

1) Are you embedding this extension in your own application or do you only
need to be able to load it into a stock Python distribution?
2) Is Python 3.5 out of the question?

On Wed, Nov 4, 2015 at 5:10 PM Ken Brooks <kb at sparklight.com> wrote:

> I have joined this list because I need to learn how to rebuild my
> antiquated Python extension properly for Windows. I need to build for
> Python 2.7, which is old and relies upon old compilers. I downloaded the
> suggested compiler:
>
>
> http://download.microsoft.com/download/A/5/4/A54BADB6-9C3F-478D-8657-93B3FC9FE62D/vcsetup.exe
>
> I downloaded the thing that is supposed to correctly glue it to Python:
>
>
> https://download.microsoft.com/download/7/9/6/796EF2E4-801B-4FC4-AB28-B59FBF6D907B/VCForPython27.msi
>
> But I can't see where to go from there.
>
> In my old world I never actually learned how to use distutils or
> setuptools; I was just building my extension with my VC and then shoving it
> into site-packages. As I read the documentation for distutils and
> setuptools, I am SO LOST! I see much about how to install someone else's
> package, but little about how to create and script my own package for
> building a Python extension written in C. Please, can someone point me to a
> good sample extension package that I can copy from?  A "hello world" or
> something?
>
> Apart from that, can someone please point me to the documentation for the
> current "right" way of building things, as an extension developer?
>
> Thanks in advance,
>
> Ken
> _______________________________________________
> python-win32 mailing list
> python-win32 at python.org
> https://mail.python.org/mailman/listinfo/python-win32
>
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From Andrew.MacIntyre at acma.gov.au  Wed Nov  4 22:35:36 2015
From: Andrew.MacIntyre at acma.gov.au (Andrew MacIntyre)
Date: Thu, 5 Nov 2015 03:35:36 +0000
Subject: [python-win32] Building my own C extension [SEC=UNCLASSIFIED]
Message-ID: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>

> From: python-win32 On Behalf Of Ken Brooks
> Sent: Thursday, 5 November 2015 10:23 AM

{...}

> Apart from that, can someone please point me to the documentation for the current "right" way of building things, as an extension developer?

The "Distributing Python Modules" section of the Python 2.7 documentation is the reference I have used.

The "Single extension module" example is essentially a "hello world" level albeit lacking actual C extension source code.  Once the right compiler is installed, the distutils setup.py script you create (if correct) should be able to build an installer or build and install the extension directly.  Binary installer info is in the "Creating Built Distributions" section.

There are more advance toolsets (e.g. setuptools, pip etc) that can be used, but I've always found Distutils sufficient for my needs on Python 2.x (not tried on Python 3.x yet).

Regards,
Andrew.

-------------------------> "These thoughts are mine alone!" <---------
Andrew MacIntyre?????????? Operations, Services and Technologies Branch
tel:?? +61 2 6219 5356???? Communications Infrastructure Division
fax:?? +61 2 6219 5347???? Australian Communications & Media Authority
email: andrew.macintyre at acma.gov.au??????????? http://www.acma.gov.au/


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 and may contain confidential and privileged information. Any unauthorized 
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 intended recipient, please contact the sender by reply email and destroy all 
 copies of the original message.

From tritium-list at sdamon.com  Thu Nov  5 08:57:09 2015
From: tritium-list at sdamon.com (Alexander Walters)
Date: Thu, 05 Nov 2015 08:57:09 -0500
Subject: [python-win32] Building my own C extension
In-Reply-To: <AFBBF322DAA54B8FBD17C023D14D8D07@KenPC>
References: <AFBBF322DAA54B8FBD17C023D14D8D07@KenPC>
Message-ID: <563B6035.5030401@sdamon.com>

The 'thing that glues it together' IS the suggested compiler.  You need 
nothing else to compile ANSI C python extensions with no C 
dependencies.  for the most part, if the extension has a setup.py, it 
should Just Work with that and 2.7 (and ONLY that and 2.7) installed.  
If your project does not have a setup.py, that is something you will 
have to make (and we may be able to help you with that).

On 11/4/2015 18:22, Ken Brooks wrote:
>
> I have joined this list because I need to learn how to rebuild my 
> antiquated Python extension properly for Windows. I need to build for 
> Python 2.7, which is old and relies upon old compilers. I downloaded 
> the suggested compiler:
>
> http://download.microsoft.com/download/A/5/4/A54BADB6-9C3F-478D-8657-93B3FC9FE62D/vcsetup.exe
>
> I downloaded the thing that is supposed to correctly glue it to Python:
>
> https://download.microsoft.com/download/7/9/6/796EF2E4-801B-4FC4-AB28-B59FBF6D907B/VCForPython27.msi
>
> But I can't see where to go from there.
>
> In my old world I never actually learned how to use distutils or 
> setuptools; I was just building my extension with my VC and then 
> shoving it into site-packages. As I read the documentation for 
> distutils and setuptools, I am SO LOST! I see much about how to 
> install someone else's package, but little about how to create and 
> script my own package for building a Python extension written in C. 
> Please, can someone point me to a good sample extension package that I 
> can copy from?  A "hello world" or something?
>
> Apart from that, can someone please point me to the documentation for 
> the current "right" way of building things, as an extension developer?
>
> Thanks in advance,
>
> Ken
>
>
>
> _______________________________________________
> python-win32 mailing list
> python-win32 at python.org
> https://mail.python.org/mailman/listinfo/python-win32

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From framstag at rus.uni-stuttgart.de  Thu Nov 19 08:56:52 2015
From: framstag at rus.uni-stuttgart.de (Ulli Horlacher)
Date: Thu, 19 Nov 2015 14:56:52 +0100
Subject: [python-win32] pyinstaller: failed to create process
Message-ID: <20151119135652.GA20736@rus.uni-stuttgart.de>

I have to compile my Python scripts into standalone Windows executables
which I can give to Windows users without Python.
I use PyInstaller on Windows 7 for this task.
It runs without problems with Python 2.7.10
But I am not able to get it working with Python 3.5

First, I was not able to install PyInstaller at all. I got

C:\Users\admin>pip install pypiwin32
   
Collecting pypiwin32
  Downloading pypiwin32-219-cp35-none-win32.whl (7.9MB)
    100% |################################| 7.9MB 61kB/s
Installing collected packages: pypiwin32
Exception:
(...)
  File "c:\program files (x86)\python 3.5\lib\shutil.py", line 115, in copyfile 
    with open(dst, 'wb') as fdst:
PermissionError: [Errno 13] Permission denied: 'c:\\program files (x86)\\python3.5\\Lib\\site-packages\\PyWin32.chm'

I found, I have to deactivate Windows UAC with:
   
C:\Windows\System32\UserAccountControlSettings.exe

Then I was able to run

pip install pypiwin32
pip install pyinstaller

without errors.

BUT pyinstaller does not work:

S:\python>pyinstaller.exe --onefile tk.py
failed to create process.

S:\python>pyinstaller --version
failed to create process.


What is wrong? 

-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum IZUS/TIK         E-Mail: horlacher at tik.uni-stuttgart.de
Universitaet Stuttgart         Tel:    ++49-711-68565868
Allmandring 30a                Fax:    ++49-711-682357
70550 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<20151119135652.GA20736 at rus.uni-stuttgart.de>

From lac at openend.se  Thu Nov 19 10:19:42 2015
From: lac at openend.se (Laura Creighton)
Date: Thu, 19 Nov 2015 16:19:42 +0100
Subject: [python-win32] pyinstaller: failed to create process
In-Reply-To: <20151119135652.GA20736@rus.uni-stuttgart.de>
References: <20151119135652.GA20736@rus.uni-stuttgart.de>
Message-ID: <201511191519.tAJFJghT001048@fido.openend.se>

In a message of Thu, 19 Nov 2015 14:56:52 +0100, Ulli Horlacher writes:
>I have to compile my Python scripts into standalone Windows executables
>which I can give to Windows users without Python.
>I use PyInstaller on Windows 7 for this task.
>It runs without problems with Python 2.7.10
>But I am not able to get it working with Python 3.5
>
>First, I was not able to install PyInstaller at all. I got
>
>C:\Users\admin>pip install pypiwin32
>   
>Collecting pypiwin32
>  Downloading pypiwin32-219-cp35-none-win32.whl (7.9MB)
>    100% |################################| 7.9MB 61kB/s
>Installing collected packages: pypiwin32
>Exception:
>(...)
>  File "c:\program files (x86)\python 3.5\lib\shutil.py", line 115, in copyfile 
>    with open(dst, 'wb') as fdst:
>PermissionError: [Errno 13] Permission denied: 'c:\\program files (x86)\\python3.5\\Lib\\site-packages\\PyWin32.chm'
>
>I found, I have to deactivate Windows UAC with:
>   
>C:\Windows\System32\UserAccountControlSettings.exe
>
>Then I was able to run
>
>pip install pypiwin32
>pip install pyinstaller
>
>without errors.
>
>BUT pyinstaller does not work:
>
>S:\python>pyinstaller.exe --onefile tk.py
>failed to create process.
>
>S:\python>pyinstaller --version
>failed to create process.
>
>
>What is wrong? 
>
>-- 
>Ullrich Horlacher              Server und Virtualisierung
>Rechenzentrum IZUS/TIK         E-Mail: horlacher at tik.uni-stuttgart.de
>Universitaet Stuttgart         Tel:    ++49-711-68565868
>Allmandring 30a                Fax:    ++49-711-682357
>70550 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
>REF:<20151119135652.GA20736 at rus.uni-stuttgart.de>


I think you have this bug.
http://bugs.python.org/issue25148

But I don't know what the workaround is, since I really only use linux.

Laura

From framstag at rus.uni-stuttgart.de  Thu Nov 19 10:55:05 2015
From: framstag at rus.uni-stuttgart.de (Ulli Horlacher)
Date: Thu, 19 Nov 2015 16:55:05 +0100
Subject: [python-win32] pyinstaller: failed to create process
In-Reply-To: <CALcKHKrYDPgiCrwHXHvfGj+a7xoS-pb4GZcHUiZFARUpt9+XXg@mail.gmail.com>
References: <20151119135652.GA20736@rus.uni-stuttgart.de>
 <CALcKHKrYDPgiCrwHXHvfGj+a7xoS-pb4GZcHUiZFARUpt9+XXg@mail.gmail.com>
Message-ID: <20151119155505.GA12563@rus.uni-stuttgart.de>

On Thu 2015-11-19 (15:26), Graham Bloice wrote:

> > C:\Users\admin>pip install pypiwin32
> >
> > Collecting pypiwin32
> >   Downloading pypiwin32-219-cp35-none-win32.whl (7.9MB)
> >     100% |################################| 7.9MB 61kB/s
> > Installing collected packages: pypiwin32
> > Exception:
> > (...)
> >   File "c:\program files (x86)\python 3.5\lib\shutil.py", line 115, in
> > copyfile
> >     with open(dst, 'wb') as fdst:
> > PermissionError: [Errno 13] Permission denied: 'c:\\program files
> > (x86)\\python3.5\\Lib\\site-packages\\PyWin32.chm'
> >
> >
> Maybe Python 3.5 shouldn't be installed in the "C:\Program Files (x86)"
> directory, as that does fall under UAC.  I've always installed Python in
> its own top level direcotyr, e.g. C:\Python3.5

"C:\Program Files (x86)\python 3.5" is the default installation path,
suggested by the Python installer.

But as I wrote:

I deactivated Windows UAC with:

C:\Windows\System32\UserAccountControlSettings.exe

Then I was able to run

pip install pypiwin32
pip install pyinstaller

without errors.

The problem now is:

S:\python>pyinstaller --version
failed to create process.



-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum IZUS/TIK         E-Mail: horlacher at tik.uni-stuttgart.de
Universitaet Stuttgart         Tel:    ++49-711-68565868
Allmandring 30a                Fax:    ++49-711-682357
70550 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<CALcKHKrYDPgiCrwHXHvfGj+a7xoS-pb4GZcHUiZFARUpt9+XXg at mail.gmail.com>

From lewis.thompson at gmail.com  Thu Nov 19 14:48:04 2015
From: lewis.thompson at gmail.com (Lewis Thompson)
Date: Thu, 19 Nov 2015 19:48:04 +0000 (UTC)
Subject: [python-win32] win32com error of 'invalid parameters'
Message-ID: <loom.20151119T204649-971@post.gmane.org>

(-2147352567, 'Exception occurred.', (0, u'Xtapi.TTInstrObj.1', u'Invalid 
Parameters', None, 0, -2147352567), None)

Does this mean that an argument needs to be passed as a keyword arg?


From timr at probo.com  Thu Nov 19 15:16:10 2015
From: timr at probo.com (Tim Roberts)
Date: Thu, 19 Nov 2015 12:16:10 -0800
Subject: [python-win32] win32com error of 'invalid parameters'
In-Reply-To: <loom.20151119T204649-971@post.gmane.org>
References: <loom.20151119T204649-971@post.gmane.org>
Message-ID: <564E2E0A.9080804@probo.com>

Lewis Thompson wrote:
> (-2147352567, 'Exception occurred.', (0, u'Xtapi.TTInstrObj.1', u'Invalid 
> Parameters', None, 0, -2147352567), None)
>
> Does this mean that an argument needs to be passed as a keyword arg?

There's no way to tell.  -2147352567 is 0x80020009, which is the
unhelpful DISP_E_EXCEPTION.  It might refer to a pointer or a bad
address.  The "Invalid Parameters" string suggests you should
double-check all of your parameters.

-- 
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.


From apilotti at cloudbasesolutions.com  Sat Nov 21 07:31:36 2015
From: apilotti at cloudbasesolutions.com (Alessandro Pilotti)
Date: Sat, 21 Nov 2015 12:31:36 +0000
Subject: [python-win32] PyMI - Windows Management Infrastructure API module
Message-ID: <7A80ED82-D2DB-49D5-80AA-22B30C3F441E@cloudbasesolutions.com>

Hi all,

As a result of some limitations with the Python WMI module,
specifically performance and lack of support for Nano Server, here?s an
alternative replacement that uses the newer Windows Management
Infrastructure (MI) API in place of the slower COM interface
used by WMI.py (https://pypi.python.org/pypi/WMI):

https://github.com/cloudbase/PyMI/tree/master/PyMI

Pre-compiled wheels are available on Pypi:
https://pypi.python.org/pypi/PyMI

The package includes a native "mi" extension, providing a wrapper over the
MI API and a "wmi" module which in turn wraps the lower level interface with an
interface meant to be compatible with https://pypi.python.org/pypi/WMI.

Benchmarks show rough execution speed improvements ranging from 50% on method
calls to 500% and more on loops over query results.

Early tests by just swapping the old WMI module with PyMI (without changes in
the code) on the OpenStack Hyper-V Nova driver show a 50% performance improvement
under heavy load.

Supports Python 2.7 and 3.x on any x86 or x64 Windows version with the MI API,
starting with Windows 7 (SP1) and Windows Server 2008 (SP2), including
also Nano Server 2016.

It does not use or require pywin32, making it much very easy to
distribute.

All basic features are already available on the current pre release, with
events and async API support on the roadmap.

WMI.py compatibility is currently limited to the features required by our
target projects (e.g. OpenStack). A full test suite is planned to ensure
increased compatibily and check for regressions.


Thanks!

Alessandro Pilotti
Cloudbase Solutions
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From chris at athcon.org  Thu Nov 26 18:11:39 2015
From: chris at athcon.org (Christian Papathanasiou)
Date: Thu, 26 Nov 2015 23:11:39 +0000
Subject: [python-win32] Python Windows Service works in debug mode,
 does not work in normal mode.
Message-ID: <CAKCKph3StUPwuyrYu+arm2FGqpsuT0B3s2Tn9NwVUHVaccT5Jg@mail.gmail.com>

Hi,

I have written a Python Windows service that does two things:

a) Writes some data to disk
b) Initiates a websocket

When I try to install/start the Windows service normally, neither of these
two functions work. Specifically, I get a 'Permission denied' error when
creating / writing the file to disk and no data is seen on the web socket
receiving server.

I have installed the Windows service with full Windows Administrator
privileges and it currently starts with the Administrator user account.
Even with these privs I still get errors. Running on Win Vista.

When I run this Windows service using pythonservice.exe -debug it works
perfectly.

Anyone have any tips that can help? I've pretty much read most things
online that I could find within Googling distance and asked in a few places
and pretty much at the point that I'm stumped :-)

Your help is very much appreciated,
Christian
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From jcasale at activenetwerx.com  Thu Nov 26 19:37:26 2015
From: jcasale at activenetwerx.com (Joseph L. Casale)
Date: Fri, 27 Nov 2015 00:37:26 +0000
Subject: [python-win32] Python Windows Service works in debug mode,
 does not work in normal mode.
In-Reply-To: <CAKCKph3StUPwuyrYu+arm2FGqpsuT0B3s2Tn9NwVUHVaccT5Jg@mail.gmail.com>
References: <CAKCKph3StUPwuyrYu+arm2FGqpsuT0B3s2Tn9NwVUHVaccT5Jg@mail.gmail.com>
Message-ID: <535c431a210744c08e68f00578418816@activenetwerx.com>

> When I try to install/start the Windows service normally, neither of these two functions work. Specifically, I get a 'Permission denied' error when creating / writing the file to disk and no data is seen on the web socket receiving server.

Don't start it with an interactive account, try Local System.
jlc

From chris at athcon.org  Thu Nov 26 22:08:55 2015
From: chris at athcon.org (Christian Papathanasiou)
Date: Fri, 27 Nov 2015 03:08:55 +0000
Subject: [python-win32] Python Windows Service works in debug mode,
 does not work in normal mode.
In-Reply-To: <535c431a210744c08e68f00578418816@activenetwerx.com>
References: <CAKCKph3StUPwuyrYu+arm2FGqpsuT0B3s2Tn9NwVUHVaccT5Jg@mail.gmail.com>
 <535c431a210744c08e68f00578418816@activenetwerx.com>
Message-ID: <CAKCKph2H+r1sw-Xwfz2AtDzkQarh-OsK9Sf3So_6ih6HPcqiTg@mail.gmail.com>

Hi Joseph, thank you for the suggestion. I tried that too unfortunately
with similar results.

Kind regards,
Christian

On Fri, Nov 27, 2015 at 12:37 AM, Joseph L. Casale <
jcasale at activenetwerx.com> wrote:

> > When I try to install/start the Windows service normally, neither of
> these two functions work. Specifically, I get a 'Permission denied' error
> when creating / writing the file to disk and no data is seen on the web
> socket receiving server.
>
> Don't start it with an interactive account, try Local System.
> jlc
>
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From matteo.boscolo at boscolini.eu  Fri Nov 27 02:34:35 2015
From: matteo.boscolo at boscolini.eu (Matteo Boscolo)
Date: Fri, 27 Nov 2015 08:34:35 +0100
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
Message-ID: <5658078B.6050101@boscolini.eu>

Hi
I'm extending python with a cpp code

in my cpp code I have my function that recive a com objetc from python 
into args
from here I'm not able to cast such an object into a ccompnt

static PyObject *
connect(PyObject * self, PyObject * args)
{
         PyObject * pyApplication;
         CComPtr<IUnknown> pUnk;
         //try to get active object
         if (!PyArg_ParseTuple(args, "O", &pyApplication))
             return NULL;
         pUnk=(CComPtr<IUnknown> )pyApplication; //<<---- not able to cast

         HRESULT hRes = pUnk->QueryInterface(&pApp);
     Py_INCREF(Py_None);
     return Py_None;
}

I pass the dispached object via win32com as follows
_application = Dispatch('TD_appl.Application', 
clsctx=CLSCTX_LOCAL_SERVER | CLSCTX_ACTIVATE_64_BIT_SERVER)
td.connect(_application)

td is my extended module

any hint is really apprecieted

best regards,
Matteo


---
Questa e-mail ? stata controllata per individuare virus con Avast antivirus.
http://www.avast.com


From timr at probo.com  Sat Nov 28 02:30:02 2015
From: timr at probo.com (Tim Roberts)
Date: Fri, 27 Nov 2015 23:30:02 -0800
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <5658078B.6050101@boscolini.eu>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
 <5658078B.6050101@boscolini.eu>
Message-ID: <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>

On Nov 26, 2015, at 11:34 PM, Matteo Boscolo <matteo.boscolo at boscolini.eu> wrote:
> 
> in my cpp code I have my function that recive a com objetc from python 
> into args
> from here I'm not able to cast such an object into a ccompnt
> 
> static PyObject *
> connect(PyObject * self, PyObject * args)
> {
>         PyObject * pyApplication;
>         CComPtr<IUnknown> pUnk;
>         //try to get active object
>         if (!PyArg_ParseTuple(args, "O", &pyApplication))
>             return NULL;
>         pUnk=(CComPtr<IUnknown> )pyApplication; //<<---- not able to cast

You are just getting a compile-time error, right?  That?s because the smart pointer wrapper (CComPtr)will only accept a pointer that actually derives from the type it is wrapping.  In this case, that?s not so.  You will probably have to force the pointer to be an IUnknown* before you can wrap it in a smart pointer.

    pUnk = (IUnknown*)pyApplication;

? 
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.


From matteo.boscolo at boscolini.eu  Sat Nov 28 03:02:24 2015
From: matteo.boscolo at boscolini.eu (Matteo Boscolo)
Date: Sat, 28 Nov 2015 09:02:24 +0100
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
 <5658078B.6050101@boscolini.eu>
 <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
Message-ID: <56595F90.3000208@boscolini.eu>

Il 28/11/2015 08:30, Tim Roberts ha scritto:
> On Nov 26, 2015, at 11:34 PM, Matteo Boscolo <matteo.boscolo at boscolini.eu> wrote:
>> in my cpp code I have my function that recive a com objetc from python
>> into args
>> from here I'm not able to cast such an object into a ccompnt
>>
>> static PyObject *
>> connect(PyObject * self, PyObject * args)
>> {
>>          PyObject * pyApplication;
>>          CComPtr<IUnknown> pUnk;
>>          //try to get active object
>>          if (!PyArg_ParseTuple(args, "O", &pyApplication))
>>              return NULL;
>>          pUnk=(CComPtr<IUnknown> )pyApplication; //<<---- not able to cast
> You are just getting a compile-time error, right?  That?s because the smart pointer wrapper (CComPtr)will only accept a pointer that actually derives from the type it is wrapping.  In this case, that?s not so.  You will probably have to force the pointer to be an IUnknown* before you can wrap it in a smart pointer.
>
>      pUnk = (IUnknown*)pyApplication;
>
> ?
> Tim Roberts, timr at probo.com
> Providenza & Boekelheide, Inc.
>
> _______________________________________________
> python-win32 mailing list
> python-win32 at python.org
> https://mail.python.org/mailman/listinfo/python-win32
>
thanks for your replay..
but if i made the suggested cast i get
../pyThinkdesign.cpp(59) : error C2259: 'IUnknown' : cannot instantiate 
abstract class
         due to following members:
         'HRESULT IUnknown::QueryInterface(const IID &,void **)' : is 
abstract
         C:\Program Files\Microsoft 
SDKs\Windows\v6.0A\include\unknwn.h(116) : see declaration of 
'IUnknown::QueryInterface'
         'ULONG IUnknown::AddRef(void)' : is abstract
         C:\Program Files\Microsoft 
SDKs\Windows\v6.0A\include\unknwn.h(120) : see declaration of 
'IUnknown::AddRef'
         'ULONG IUnknown::Release(void)' : is abstract
         C:\Program Files\Microsoft 
SDKs\Windows\v6.0A\include\unknwn.h(122) : see declaration of 
'IUnknown::Release'
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 
9.0\\VC\\BIN\\cl.exe' failed with exit status 2

best refgards
Matteo


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From matteo.boscolo at boscolini.eu  Sat Nov 28 03:05:07 2015
From: matteo.boscolo at boscolini.eu (Matteo Boscolo)
Date: Sat, 28 Nov 2015 09:05:07 +0100
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
 <5658078B.6050101@boscolini.eu>
 <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
Message-ID: <56596033.5080501@boscolini.eu>

Il 28/11/2015 08:30, Tim Roberts ha scritto:
> On Nov 26, 2015, at 11:34 PM, Matteo Boscolo <matteo.boscolo at boscolini.eu> wrote:
>> in my cpp code I have my function that recive a com objetc from python
>> into args
>> from here I'm not able to cast such an object into a ccompnt
>>
>> static PyObject *
>> connect(PyObject * self, PyObject * args)
>> {
>>          PyObject * pyApplication;
>>          CComPtr<IUnknown> pUnk;
>>          //try to get active object
>>          if (!PyArg_ParseTuple(args, "O", &pyApplication))
>>              return NULL;
>>          pUnk=(CComPtr<IUnknown> )pyApplication; //<<---- not able to cast
> You are just getting a compile-time error, right?  That?s because the smart pointer wrapper (CComPtr)will only accept a pointer that actually derives from the type it is wrapping.  In this case, that?s not so.  You will probably have to force the pointer to be an IUnknown* before you can wrap it in a smart pointer.
>
>      pUnk = (IUnknown*)pyApplication;
>
> ?
> Tim Roberts, timr at probo.com
> Providenza & Boekelheide, Inc.
>
> _______________________________________________
> python-win32 mailing list
> python-win32 at python.org
> https://mail.python.org/mailman/listinfo/python-win32
>
sorry i did a mistake your cast seems to be ok for compyling ..



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From matteo.boscolo at boscolini.eu  Sat Nov 28 03:08:26 2015
From: matteo.boscolo at boscolini.eu (Matteo Boscolo)
Date: Sat, 28 Nov 2015 09:08:26 +0100
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <56596033.5080501@boscolini.eu>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
 <5658078B.6050101@boscolini.eu>
 <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
 <56596033.5080501@boscolini.eu>
Message-ID: <565960FA.7030106@boscolini.eu>

      pUnk = (IUnknown*)pyApplication;
>>
>> ?
>> Tim Roberts, timr at probo.com
>> Providenza & Boekelheide, Inc.
>>
>> _______________________________________________
>> python-win32 mailing list
>> python-win32 at python.org
>> https://mail.python.org/mailman/listinfo/python-win32
>>
> sorry i did a mistake your cast seems to be ok for compyling ..
>
>
>
> ---
> Questa e-mail ? stata controllata per individuare virus con Avast 
> antivirus.
> http://www.avast.com
>
> _______________________________________________
> python-win32 mailing list
> python-win32 at python.org
> https://mail.python.org/mailman/listinfo/python-win32
>
Unfortunately when i execute the code i get an acces violation .. :(((

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From matteo.boscolo at boscolini.eu  Sun Nov 29 01:22:59 2015
From: matteo.boscolo at boscolini.eu (Matteo Boscolo)
Date: Sun, 29 Nov 2015 07:22:59 +0100
Subject: [python-win32] hoto cast pyobject to ccompnt
In-Reply-To: <565960FA.7030106@boscolini.eu>
References: <ddc14c0799084fff9164ab1595f38f01@cbrexc1301pp.internal.govt>
 <5658078B.6050101@boscolini.eu>
 <E35C74AA-5FD6-4C2F-AB0F-DF2D4736D395@probo.com>
 <56596033.5080501@boscolini.eu> <565960FA.7030106@boscolini.eu>
Message-ID: <565A99C3.6050201@boscolini.eu>

Il 28/11/2015 09:08, Matteo Boscolo ha scritto:
> pUnk = (IUnknown*)pyApplication;
>>>
>>> ?
>>> Tim Roberts, timr at probo.com
>>> Providenza & Boekelheide, Inc.
>>>
>>> _______________________________________________
>>> python-win32 mailing list
>>> python-win32 at python.org
>>> https://mail.python.org/mailman/listinfo/python-win32
>>>
>> sorry i did a mistake your cast seems to be ok for compyling ..
>>
>>
>>
>> ---
>> Questa e-mail ? stata controllata per individuare virus con Avast 
>> antivirus.
>> http://www.avast.com
>>
>> _______________________________________________
>> python-win32 mailing list
>> python-win32 at python.org
>> https://mail.python.org/mailman/listinfo/python-win32
>>
> Unfortunately when i execute the code i get an acces violation .. :(((
>
I solve it by using the pythoncom.h in this way ..
.
..
...
#include "PythonCOM.h"
.....
...
..
static PyObject *
connect(PyObject * self, PyObject * args)
{
         PyObject * pyApplication;
         CComPtr<IUnknown> pUnk;
         IUnknown *ret;
         //try to get active object
         if (!PyArg_ParseTuple(args, "O", &pyApplication))
             return NULL;

         pUnk = ((PyIUnknown *)pyApplication)->m_obj;
         HRESULT hRes = pUnk->QueryInterface(&pApp);

     Py_INCREF(Py_None);
     return Py_None;
}

regards,
Matteo



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