On 6 May 2011 07:11, laurent laffont <
laurent.laffont@gmail.com> wrote:
>
> On Fri, May 6, 2011 at 3:19 AM, Igor Stasenko <
siguctua@gmail.com> wrote:
>>
>> On 6 May 2011 01:03, Jimmie Houchin <
jlhouchin@gmail.com> wrote:
>> > On 5/5/2011 4:25 PM, Igor Stasenko wrote:
>> >
>> > On 5 May 2011 21:39, Jimmie Houchin <
jlhouchin@gmail.com> wrote:
>> >
>> > On 5/5/2011 12:21 PM, Igor Stasenko wrote:
>> >
>> > On 5 May 2011 18:57, Jimmie Houchin<
jlhouchin@gmail.com> ��wrote:
>> >
>> > [Big Snip]
>> >
>> > Well said.
>> > Except that i'm not sharing your view that its hard to interface with
>> > foreign libraries.
>> > Its not hard at all. Of course to connect two different worlds, you
>> > need to have knowledge
>> > in both of them. But this requirement not a bit different when you
>> > take any other pair of languages and try to
>> > connect them.
>> >
>> > Thanks,
>> >
>> > I have no knowledge of either the knowledge or the challenges involved
>> > in
>> > using external libraries in Pharo or Squeak. I have no knowledge of
>> > FFI/Alien or using C/C++/C# or compilers.
>> >
>>
>> So, read about it. It doesn't bites. :)
>>
>> > As I said, I am totally unaware of the limitations of the system, but
>> > that
>> > it did what I need, and would have liked to do that from Pharo/Squeak. I
>> > know Dolphin has/had certain capabilities. But I don't prefer to use
>> > non-open source software if at all possible for development. I also am
>> > very
>> > preferential towards cross-platform software. Dolphin fails on all
>> > accounts.
>> > I would choose my Python/Pharo blend over Dolphin any day. I know it
>> > introduces some pain, but I am willing to accept the pain. I like tools
>> > that
>> > allow me to use them where ever I am and whatever I am doing.
>> >
>> > However, that said, when I look at the facilities Python offers for such
>> > capabilities it on appearances looks quite impressive.
>> >
>> >
http://docs.python.org/library/ctypes.html
>> >
>> > """
>> > ctypes is a foreign function library for Python. It provides C
>> > compatible
>> > data types, and allows calling functions in DLLs or shared libraries. It
>> > can
>> > be used to wrap these libraries in pure Python.
>> >
>> > 15.18.1.1. Loading dynamic link libraries
>> >
>> > ctypes exports the cdll, and on Windows windll and oledll objects, for
>> > loading dynamic link libraries.
>> >
>> > You load libraries by accessing them as attributes of these objects.
>> > cdll
>> > loads libraries which export functions using the standard cdecl calling
>> > convention, while windll libraries call functions using the stdcall
>> > calling
>> > convention. oledll also uses the stdcall calling convention, and assumes
>> > the
>> > functions return a Windows HRESULT error code. The error code is used to
>> > automatically raise a WindowsError exception when the function call
>> > fails.
>> >
>> > Here are some examples for Windows. Note that msvcrt is the MS standard
>> > C
>> > library containing most standard C functions, and uses the cdecl calling
>> > convention:
>> >
>> >>>> from ctypes import *
>> >>>> print windll.kernel32 # doctest: +WINDOWS
>> > <WinDLL 'kernel32', handle ... at ...>
>> >>>> print cdll.msvcrt # doctest: +WINDOWS
>> > <CDLL 'msvcrt', handle ... at ...>
>> >>>> libc = cdll.msvcrt # doctest: +WINDOWS
>> >>>
>> >
>>
>> So? Why do you think that you cannot do the same in Pharo?
>> Have you digested what is available before doing it in Python?
>>
>>
>> > """
>> >
>> > It has examples for windows and linux.
>> >
>>
>> I feel that you are seriously under-informed.
>> Just try googling for:
>>
>> Squeak + FFI
>> Alien
>>
>> NativeBoost
>>
>> and just check what you can do using it:
>>
>>
http://www.squeaksource.com/NBOpenGL/
>>
>> also check mail archives.
>>
>> Forgive me, but i really can't understand , why you can't just look
>> for what you need by yourself?
>> Are
google.com banned by your ISP?
>>
>> For me this subject is interested in aspect, why this information
>> (while being available openly) didn't catch your
>> attention , so you using python instead.
>> (Okay, you might miss some functionality like being able to
>> automatically generate bindings to COM interfaces).
>> But again, i am sure that if you surf the net or ask right questions
>> on mailing list, you will probably discover that
>> there is already work being done in that direction.
>
>
> Indeed, one thing FFI / Alien / NB don't have is a documentation as nice
> as��
http://docs.python.org/library/ctypes.html
> ��in��
http://book.pharo-project.org/
> FFI / Alien / NB may be powerful, it seems I've never managed to do what I
> want, even with all mailing lists support (search mails on yaz / z3950 or
> id3taglib). In Python it works on OSX out of the box (I've just tried :)
>