Hi,

I need to write a Win32 DLL and I would like to use Python instead of
VB, C++ or Delphi. Is this possible?

Thank you,

Andre M. Descombes

Not directly, but yes, using libpython. Essentially you write your
python code and then a thin C wrapper over it that does datatype and
calling convention conversion. Since this is not a pleasant task for
many people, you might take a look at Pyrex, which does this quite
nicely. Generally Pyrex is considered as a way to wrap C code for use
but Python, but it works just as well the other way.

On Tue, Aug 17, 2004 at 03:44:50PM +0200, AMD wrote:[color=blue]
> Hi,
>
> I need to write a Win32 DLL and I would like to use Python instead of
> VB, C++ or Delphi. Is this possible?
>
> Thank you,
>
> Andre M. Descombes[/color]

AMD wrote:
[color=blue]
> Hi,
>
> I need to write a Win32 DLL and I would like to use Python instead of
> VB, C++ or Delphi. Is this possible?
>
> Thank you,
>
> Andre M. Descombes[/color]


The new version of py2exe
(http://starship.python.net/crew/theller/py2exe/) supposedly allows the
creation of dll com servers if that's of interest to you.

AMD <amdescombes@qualicontrol.com> wrote in message news:<cft24m$njb$1@news-reader2.wanadoo.fr>...
[color=blue]
> I need to write a Win32 DLL and I would like to use Python instead of
> VB, C++ or Delphi. Is this possible?[/color]

No. It is possible to interface to and from Python via other
languages, but since Python does not create native code, you cannot
create a DLL with it.

Paul Miller wrote:[color=blue]
> AMD <amdescombes@qualicontrol.com> wrote in message news:<cft24m$njb$1@news-reader2.wanadoo.fr>...
>
>[color=green]
>>I need to write a Win32 DLL and I would like to use Python instead of
>>VB, C++ or Delphi. Is this possible?[/color]
>
>
> No. It is possible to interface to and from Python via other
> languages, but since Python does not create native code, you cannot
> create a DLL with it.[/color]

This is not strictly true. At work I have made DLLs which encapsulate
the base python code and then link themselves to a specialized version
of Python (to avoid clashes with any other python). At the extreme we
made a Darwin shared library which encapsulated our application code and
the whole of python. I made use(misuse probably) of the freeze tool to
accomplish this latter. The result was a single binary .so with a simple
interface that used python internally.

Python doesn't make this easy (the startup is fairly complex), but it is
possible.
--
Robin Becker

Actually what I need to do is write a DLL which exports a single stdCall
method named Execute which receives an IDispatch interface to the caller
as its only parameter:

Here is the equivalent Delphi declaration of the method I need to export :

procedure Execute(caller IDispatch); stdcall;

I will take a look at Pyrex and Py2Exe and see if they can help me.

Regards,

Andre
[color=blue]
> Not directly, but yes, using libpython. Essentially you write your
> python code and then a thin C wrapper over it that does datatype and
> calling convention conversion. Since this is not a pleasant task for
> many people, you might take a look at Pyrex, which does this quite
> nicely. Generally Pyrex is considered as a way to wrap C code for use
> but Python, but it works just as well the other way.
>
> On Tue, Aug 17, 2004 at 03:44:50PM +0200, AMD wrote:
>[color=green]
>>Hi,
>>
>>I need to write a Win32 DLL and I would like to use Python instead of
>>VB, C++ or Delphi. Is this possible?
>>
>>Thank you,
>>
>>Andre M. Descombes[/color][/color]