From kevinkunzmann at gmx.net  Sun Mar  2 00:30:20 2014
From: kevinkunzmann at gmx.net (Kevin Kunzmann)
Date: Sun, 02 Mar 2014 00:30:20 +0100
Subject: [C++-sig] getting the tutorial up and running
Message-ID: <53126D8C.7030401@gmx.net>

Hi!

I just successfully built boost using bootstrap and .\b2 on Windows 8.1 
with msvc 11.0. I put it in C:\local\boost_1_55_0

In my home directory I created  user-config.jam:

    #  MSVC configuration
    using msvc : 11.0 ;

    #  Python configuration
    using python : : C:/Users/Kevin/Anaconda ;

as I use the anaconda python distribution. It seems to recognize it, as 
I do not get any ojections when invoking bjam in 
C:\local\boost_1_55_0\libs\python\example\tutorial, here is the complete 
output:

    C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
    link.jam: No such file or directory
    ...patience...
    ...patience...
    ...found 1678 targets...
    ...updating 14 targets...
    common.mkdir bin
    common.mkdir bin\msvc-11.0
    common.mkdir bin\msvc-11.0\debug
    compile-c-c++ bin\msvc-11.0\debug\hello.obj
    hello.cpp
    msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
    LINK : fatal error LNK1104: cannot open file
    'boost_python-vc110-mt-gd-1_55.lib'


             call "C:\Program Files (x86)\Microsoft Visual Studio
    11.0\vc\vcvarsall.b
    at" x86 >nul
    link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
    /subsystem:conso
    le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
    /IMPLIB:"bin\msvc-11.0\debug\hello_e
    xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
    @"bin\msvc-11.0\debug\hello_ex
    t.pyd.rsp"
             if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%

    ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
    bin\msvc-11.0\debug\he
    llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
    bin\msvc-11.0\debug\hello_ext.pdb.
    ..
    common.copy boost_python-vc110-gd-1_55.dll
    ..\..\..\..\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_55.
    dll
             1 Datei(en) kopiert.
    ...skipped <p.>hello_ext.pyd for lack of
    <pbin\msvc-11.0\debug>hello_ext.pyd...
    common.mkdir bin\hello.test
    common.mkdir bin\hello.test\msvc-11.0
    common.mkdir bin\hello.test\msvc-11.0\debug
    ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
    <pbin\msvc-11.0\de
    bug>hello_ext.pyd...
    ...failed updating 3 targets...
    ...skipped 3 targets...
    ...updated 8 targets...

    C:\local\boost_1_55_0\libs\python\example\tutorial>

what went wrong here? what is link.jam and where do I get it from?

best,

Kevin
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From nikolay.mladenov at gmail.com  Sun Mar  2 19:34:25 2014
From: nikolay.mladenov at gmail.com (Nikolay Mladenov)
Date: Sun, 2 Mar 2014 13:34:25 -0500
Subject: [C++-sig] getting the tutorial up and running
In-Reply-To: <53126D8C.7030401@gmx.net>
References: <53126D8C.7030401@gmx.net>
Message-ID: <CACbdn-LwU=9qT03Vq+TEZV2-p7sE9aMaUCf4tMB3wxByR6+iJw@mail.gmail.com>

IIRC when you build boost you have to use  --with-python as bjam option or
the python libs are not built


On Sat, Mar 1, 2014 at 6:30 PM, Kevin Kunzmann <kevinkunzmann at gmx.net>wrote:

>  Hi!
>
> I just successfully built boost using bootstrap and .\b2 on Windows 8.1
> with msvc 11.0. I put it in C:\local\boost_1_55_0
>
> In my home directory I created  user-config.jam:
>
> #  MSVC configuration
> using msvc : 11.0 ;
>
> #  Python configuration
> using python : : C:/Users/Kevin/Anaconda ;
>
> as I use the anaconda python distribution. It seems to recognize it, as I
> do not get any ojections when invoking bjam in
> C:\local\boost_1_55_0\libs\python\example\tutorial, here is the complete
> output:
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
> link.jam: No such file or directory
> ...patience...
> ...patience...
> ...found 1678 targets...
> ...updating 14 targets...
> common.mkdir bin
> common.mkdir bin\msvc-11.0
> common.mkdir bin\msvc-11.0\debug
> compile-c-c++ bin\msvc-11.0\debug\hello.obj
> hello.cpp
> msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> LINK : fatal error LNK1104: cannot open file
> 'boost_python-vc110-mt-gd-1_55.lib'
>
>
>         call "C:\Program Files (x86)\Microsoft Visual Studio
> 11.0\vc\vcvarsall.b
> at" x86 >nul
> link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
> /subsystem:conso
> le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
> /IMPLIB:"bin\msvc-11.0\debug\hello_e
> xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
> @"bin\msvc-11.0\debug\hello_ex
> t.pyd.rsp"
>         if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
>
> ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> bin\msvc-11.0\debug\he
> llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
> bin\msvc-11.0\debug\hello_ext.pdb.
> ..
> common.copy boost_python-vc110-gd-1_55.dll
>
> ..\..\..\..\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_55.
> dll
>         1 Datei(en) kopiert.
> ...skipped <p.>hello_ext.pyd for lack of
> <pbin\msvc-11.0\debug>hello_ext.pyd...
> common.mkdir bin\hello.test
> common.mkdir bin\hello.test\msvc-11.0
> common.mkdir bin\hello.test\msvc-11.0\debug
> ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
> <pbin\msvc-11.0\de
> bug>hello_ext.pyd...
> ...failed updating 3 targets...
> ...skipped 3 targets...
> ...updated 8 targets...
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>
>
>  what went wrong here? what is link.jam and where do I get it from?
>
> best,
>
> Kevin
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig
>
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From kevinkunzmann at gmx.net  Mon Mar  3 10:46:09 2014
From: kevinkunzmann at gmx.net (Kevin Kunzmann)
Date: Mon, 03 Mar 2014 10:46:09 +0100
Subject: [C++-sig] getting the tutorial up and running
In-Reply-To: <CACbdn-LwU=9qT03Vq+TEZV2-p7sE9aMaUCf4tMB3wxByR6+iJw@mail.gmail.com>
References: <53126D8C.7030401@gmx.net>
 <CACbdn-LwU=9qT03Vq+TEZV2-p7sE9aMaUCf4tMB3wxByR6+iJw@mail.gmail.com>
Message-ID: <53144F61.5090505@gmx.net>

Hey,

thanks, still not working - I suspect it's the include and library paths 
for the command line compiler now, how do I add my boost directory to them?

Output is still:

    C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
    link.jam: No such file or directory
    ...patience...
    ...patience...
    ...found 1678 targets...
    ...updating 6 targets...
    msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
    LINK : fatal error LNK1104: cannot open file
    'boost_python-vc110-mt-gd-1_55.lib'


             call "C:\Program Files (x86)\Microsoft Visual Studio
    11.0\vc\vcvarsall.b
    at" x86 >nul
    link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
    /subsystem:conso
    le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
    /IMPLIB:"bin\msvc-11.0\debug\hello_e
    xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
    @"bin\msvc-11.0\debug\hello_ex
    t.pyd.rsp"
             if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%

    ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
    bin\msvc-11.0\debug\he
    llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
    bin\msvc-11.0\debug\hello_ext.pdb.
    ..
    ...skipped <p.>hello_ext.pyd for lack of
    <pbin\msvc-11.0\debug>hello_ext.pyd...
    ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
    <pbin\msvc-11.0\de
    bug>hello_ext.pyd...
    ...failed updating 3 targets...
    ...skipped 3 targets...

    C:\local\boost_1_55_0\libs\python\example\tutorial>

do I have to worry about link.jam?

best,

Kevin


On 02.03.2014 19:34, Nikolay Mladenov wrote:
> IIRC when you build boost you have to use  --with-python as bjam 
> option or the python libs are not built
>
>
> On Sat, Mar 1, 2014 at 6:30 PM, Kevin Kunzmann <kevinkunzmann at gmx.net 
> <mailto:kevinkunzmann at gmx.net>> wrote:
>
>     Hi!
>
>     I just successfully built boost using bootstrap and .\b2 on
>     Windows 8.1 with msvc 11.0. I put it in C:\local\boost_1_55_0
>
>     In my home directory I created  user-config.jam:
>
>         #  MSVC configuration
>         using msvc : 11.0 ;
>
>         #  Python configuration
>         using python : : C:/Users/Kevin/Anaconda ;
>
>     as I use the anaconda python distribution. It seems to recognize
>     it, as I do not get any ojections when invoking bjam in
>     C:\local\boost_1_55_0\libs\python\example\tutorial, here is the
>     complete output:
>
>         C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
>         link.jam: No such file or directory
>         ...patience...
>         ...patience...
>         ...found 1678 targets...
>         ...updating 14 targets...
>         common.mkdir bin
>         common.mkdir bin\msvc-11.0
>         common.mkdir bin\msvc-11.0\debug
>         compile-c-c++ bin\msvc-11.0\debug\hello.obj
>         hello.cpp
>         msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
>         LINK : fatal error LNK1104: cannot open file
>         'boost_python-vc110-mt-gd-1_55.lib'
>
>
>                 call "C:\Program Files (x86)\Microsoft Visual Studio
>         11.0\vc\vcvarsall.b
>         at" x86 >nul
>         link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86
>         /MANIFEST /subsystem:conso
>         le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
>         /IMPLIB:"bin\msvc-11.0\debug\hello_e
>         xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
>         @"bin\msvc-11.0\debug\hello_ex
>         t.pyd.rsp"
>                 if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
>
>         ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
>         bin\msvc-11.0\debug\he
>         llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
>         bin\msvc-11.0\debug\hello_ext.pdb.
>         ..
>         common.copy boost_python-vc110-gd-1_55.dll
>         ..\..\..\..\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_55.
>         dll
>                 1 Datei(en) kopiert.
>         ...skipped <p.>hello_ext.pyd for lack of
>         <pbin\msvc-11.0\debug>hello_ext.pyd...
>         common.mkdir bin\hello.test
>         common.mkdir bin\hello.test\msvc-11.0
>         common.mkdir bin\hello.test\msvc-11.0\debug
>         ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
>         <pbin\msvc-11.0\de
>         bug>hello_ext.pyd...
>         ...failed updating 3 targets...
>         ...skipped 3 targets...
>         ...updated 8 targets...
>
>         C:\local\boost_1_55_0\libs\python\example\tutorial>
>
>     what went wrong here? what is link.jam and where do I get it from?
>
>     best,
>
>     Kevin
>
>     _______________________________________________
>     Cplusplus-sig mailing list
>     Cplusplus-sig at python.org <mailto:Cplusplus-sig at python.org>
>     https://mail.python.org/mailman/listinfo/cplusplus-sig
>
>
>
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig

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From andy at schnoberts.com  Mon Mar  3 20:23:58 2014
From: andy at schnoberts.com (Andy Schneider)
Date: Mon, 3 Mar 2014 19:23:58 +0000
Subject: [C++-sig] as_to_python_function and abstract C++ classes
Message-ID: <3D541E28-6D28-4918-ACCC-58407C59444E@schnoberts.com>

Hi, 

Since I upgraded to gcc 4.8 I can no longer use as_to_python_function<T, C> with T being a type that's abstract (i.e. has >= 1 pure virtual method). This is because in gcc 4.8 the following:

    template <class U>
    static void convert_function_must_take_value_or_const_reference(U(*)(T), int, T* = 0) {}

fails to compile since T is not constructible. 

Is this a known issue? Is there interest in a fix for this or are there are better ways to be constructing conversion functions in a typesafe manner in Boost.Python? 

Kind regards, 

Andy


From nikolay.mladenov at gmail.com  Tue Mar  4 15:27:20 2014
From: nikolay.mladenov at gmail.com (Nikolay Mladenov)
Date: Tue, 4 Mar 2014 09:27:20 -0500
Subject: [C++-sig] getting the tutorial up and running
In-Reply-To: <53144F61.5090505@gmx.net>
References: <53126D8C.7030401@gmx.net>
 <CACbdn-LwU=9qT03Vq+TEZV2-p7sE9aMaUCf4tMB3wxByR6+iJw@mail.gmail.com>
 <53144F61.5090505@gmx.net>
Message-ID: <CACbdn-+aign7d4GnTRGS8GVgWxRSjAaa=AVwL4DtwAszKhHW0w@mail.gmail.com>

did you verify the existence of boost_python-vc110-mt-gd-1_55.lib in
your C:\local\boost_1_55_0\stage
folder?


On Mon, Mar 3, 2014 at 4:46 AM, Kevin Kunzmann <kevinkunzmann at gmx.net>wrote:

>  Hey,
>
> thanks, still not working - I suspect it's the include and library paths
> for the command line compiler now, how do I add my boost directory to them?
>
> Output is still:
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
> link.jam: No such file or directory
> ...patience...
> ...patience...
> ...found 1678 targets...
> ...updating 6 targets...
>
> msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> LINK : fatal error LNK1104: cannot open file
> 'boost_python-vc110-mt-gd-1_55.lib'
>
>
>         call "C:\Program Files (x86)\Microsoft Visual Studio
> 11.0\vc\vcvarsall.b
> at" x86 >nul
> link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
> /subsystem:conso
> le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
> /IMPLIB:"bin\msvc-11.0\debug\hello_e
> xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
> @"bin\msvc-11.0\debug\hello_ex
> t.pyd.rsp"
>         if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
>
> ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> bin\msvc-11.0\debug\he
> llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
> bin\msvc-11.0\debug\hello_ext.pdb.
> ..
> ...skipped <p.>hello_ext.pyd for lack of
> <pbin\msvc-11.0\debug>hello_ext.pyd...
> ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
> <pbin\msvc-11.0\de
> bug>hello_ext.pyd...
> ...failed updating 3 targets...
> ...skipped 3 targets...
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>
>
>  do I have to worry about link.jam?
>
> best,
>
> Kevin
>
>
>
> On 02.03.2014 19:34, Nikolay Mladenov wrote:
>
> IIRC when you build boost you have to use  --with-python as bjam option or
> the python libs are not built
>
>
> On Sat, Mar 1, 2014 at 6:30 PM, Kevin Kunzmann <kevinkunzmann at gmx.net>wrote:
>
>>  Hi!
>>
>> I just successfully built boost using bootstrap and .\b2 on Windows 8.1
>> with msvc 11.0. I put it in C:\local\boost_1_55_0
>>
>> In my home directory I created  user-config.jam:
>>
>> #  MSVC configuration
>> using msvc : 11.0 ;
>>
>> #  Python configuration
>> using python : : C:/Users/Kevin/Anaconda ;
>>
>> as I use the anaconda python distribution. It seems to recognize it, as I
>> do not get any ojections when invoking bjam in
>> C:\local\boost_1_55_0\libs\python\example\tutorial, here is the complete
>> output:
>>
>> C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
>> link.jam: No such file or directory
>> ...patience...
>> ...patience...
>> ...found 1678 targets...
>> ...updating 14 targets...
>> common.mkdir bin
>> common.mkdir bin\msvc-11.0
>> common.mkdir bin\msvc-11.0\debug
>> compile-c-c++ bin\msvc-11.0\debug\hello.obj
>> hello.cpp
>> msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
>> LINK : fatal error LNK1104: cannot open file
>> 'boost_python-vc110-mt-gd-1_55.lib'
>>
>>
>>         call "C:\Program Files (x86)\Microsoft Visual Studio
>> 11.0\vc\vcvarsall.b
>> at" x86 >nul
>> link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
>> /subsystem:conso
>> le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
>> /IMPLIB:"bin\msvc-11.0\debug\hello_e
>> xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
>> @"bin\msvc-11.0\debug\hello_ex
>> t.pyd.rsp"
>>         if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
>>
>> ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
>> bin\msvc-11.0\debug\he
>> llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
>> bin\msvc-11.0\debug\hello_ext.pdb.
>> ..
>> common.copy boost_python-vc110-gd-1_55.dll
>>
>> ..\..\..\..\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_55.
>> dll
>>         1 Datei(en) kopiert.
>> ...skipped <p.>hello_ext.pyd for lack of
>> <pbin\msvc-11.0\debug>hello_ext.pyd...
>> common.mkdir bin\hello.test
>> common.mkdir bin\hello.test\msvc-11.0
>> common.mkdir bin\hello.test\msvc-11.0\debug
>> ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
>> <pbin\msvc-11.0\de
>> bug>hello_ext.pyd...
>> ...failed updating 3 targets...
>> ...skipped 3 targets...
>> ...updated 8 targets...
>>
>> C:\local\boost_1_55_0\libs\python\example\tutorial>
>>
>>  what went wrong here? what is link.jam and where do I get it from?
>>
>> best,
>>
>> Kevin
>>
>> _______________________________________________
>> Cplusplus-sig mailing list
>> Cplusplus-sig at python.org
>> https://mail.python.org/mailman/listinfo/cplusplus-sig
>>
>
>
>
> _______________________________________________
> Cplusplus-sig mailing listCplusplus-sig at python.orghttps://mail.python.org/mailman/listinfo/cplusplus-sig
>
>
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig
>
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From raghavendra.jain at gmail.com  Sat Mar  8 05:29:31 2014
From: raghavendra.jain at gmail.com (Raghvendra Jain)
Date: Sat, 8 Mar 2014 13:29:31 +0900
Subject: [C++-sig] Installation of boost.python using boost 1.55.0
Message-ID: <CAGFMWUg+YDs4z+nr2wN1u2ONgKyF6PUWbF2etQBsspc1vPdF1g@mail.gmail.com>

Hi all,


I've setup the PATH for C:\Python27, and execute the 'bootstrap' in
the boost folder. The error message displayed:

Building Boost.Build engine
"VCVARS32.BAT" is not recognized as commands or executable programs/bat file.



What should I do ?



Best Regards,


Raghav



On Sun, Mar 2, 2014 at 8:30 AM, Kevin Kunzmann <kevinkunzmann at gmx.net>wrote:

>  Hi!
>
> I just successfully built boost using bootstrap and .\b2 on Windows 8.1
> with msvc 11.0. I put it in C:\local\boost_1_55_0
>
> In my home directory I created  user-config.jam:
>
> #  MSVC configuration
> using msvc : 11.0 ;
>
> #  Python configuration
> using python : : C:/Users/Kevin/Anaconda ;
>
> as I use the anaconda python distribution. It seems to recognize it, as I
> do not get any ojections when invoking bjam in
> C:\local\boost_1_55_0\libs\python\example\tutorial, here is the complete
> output:
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>bjam
> link.jam: No such file or directory
> ...patience...
> ...patience...
> ...found 1678 targets...
> ...updating 14 targets...
> common.mkdir bin
> common.mkdir bin\msvc-11.0
> common.mkdir bin\msvc-11.0\debug
> compile-c-c++ bin\msvc-11.0\debug\hello.obj
> hello.cpp
> msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> LINK : fatal error LNK1104: cannot open file
> 'boost_python-vc110-mt-gd-1_55.lib'
>
>
>         call "C:\Program Files (x86)\Microsoft Visual Studio
> 11.0\vc\vcvarsall.b
> at" x86 >nul
> link /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST
> /subsystem:conso
> le /out:"bin\msvc-11.0\debug\hello_ext.pyd"
> /IMPLIB:"bin\msvc-11.0\debug\hello_e
> xt.lib" /LIBPATH:"C:\Users\Kevin\Anaconda\libs"
> @"bin\msvc-11.0\debug\hello_ex
> t.pyd.rsp"
>         if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
>
> ...failed msvc.link.dll bin\msvc-11.0\debug\hello_ext.pyd
> bin\msvc-11.0\debug\he
> llo_ext.lib bin\msvc-11.0\debug\hello_ext.pdb
> bin\msvc-11.0\debug\hello_ext.pdb.
> ..
> common.copy boost_python-vc110-gd-1_55.dll
>
> ..\..\..\..\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_55.
> dll
>         1 Datei(en) kopiert.
> ...skipped <p.>hello_ext.pyd for lack of
> <pbin\msvc-11.0\debug>hello_ext.pyd...
> common.mkdir bin\hello.test
> common.mkdir bin\hello.test\msvc-11.0
> common.mkdir bin\hello.test\msvc-11.0\debug
> ...skipped <pbin\hello.test\msvc-11.0\debug>hello for lack of
> <pbin\msvc-11.0\de
> bug>hello_ext.pyd...
> ...failed updating 3 targets...
> ...skipped 3 targets...
> ...updated 8 targets...
>
> C:\local\boost_1_55_0\libs\python\example\tutorial>
>
>  what went wrong here? what is link.jam and where do I get it from?
>
> best,
>
> Kevin
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig
>
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From deepankar.sharma at gmail.com  Sat Mar  8 21:17:55 2014
From: deepankar.sharma at gmail.com (Deepankar Sharma)
Date: Sat, 8 Mar 2014 15:17:55 -0500
Subject: [C++-sig] How to wrap class enums
Message-ID: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>

Any pointers on how to expose class enums to Python? Given the following
enum what would the boost code to expose it to python look like? The page
at http://www.boost.org/doc/libs/1_55_0/libs/python/doc/v2/enum.html only
lists examples of old style enums.


enum class t_functions
{
ADD, SUB, MUL, DIV
};
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From herron at ELLINGTON.com  Mon Mar 10 16:42:12 2014
From: herron at ELLINGTON.com (Liam Herron)
Date: Mon, 10 Mar 2014 15:42:12 +0000
Subject: [C++-sig] How to wrap class enums
In-Reply-To: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>
References: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>
Message-ID: <96426055F003C542B3FB8A0928736DF916D03F@ex0.ELLINGTON.com>

Here is an example:

// c++ code

class A
{
public:
    enum ATypes
    {
        ONE,
        TWO,
        THREE
    };
};


//  boost python code


object obj_A =

class_<A>
   ("A", "A simple A object", init<>() )
   ;

{
   scope in_A(obj_A);
   enum_<A:ATypes>
      ("ATypes")
      .value("ONE", A::ONE)
      .value("TWO", A::TWO)
      .value("THREE", A::THREE)
      ;
}


Hope that helps.

Liam



From: Cplusplus-sig [mailto:cplusplus-sig-bounces+herron=ellington.com at python.org] On Behalf Of Deepankar Sharma
Sent: Saturday, March 08, 2014 3:18 PM
To: cplusplus-sig at python.org
Subject: [C++-sig] How to wrap class enums

Any pointers on how to expose class enums to Python? Given the following enum what would the boost code to expose it to python look like? The page at http://www.boost.org/doc/libs/1_55_0/libs/python/doc/v2/enum.html only lists examples of old style enums.


enum class t_functions
{
            ADD, SUB, MUL, DIV
};

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From wichert at wiggy.net  Tue Mar 11 19:16:31 2014
From: wichert at wiggy.net (Wichert Akkerman)
Date: Tue, 11 Mar 2014 19:16:31 +0100
Subject: [C++-sig] How to wrap class enums
In-Reply-To: <96426055F003C542B3FB8A0928736DF916D03F@ex0.ELLINGTON.com>
References: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>
 <96426055F003C542B3FB8A0928736DF916D03F@ex0.ELLINGTON.com>
Message-ID: <ABE68CEA-DD22-4EAC-8C14-E4EFB8AF459B@wiggy.net>


On 10 Mar 2014, at 16:42, Liam Herron <herron at ELLINGTON.com> wrote:

> Here is an example:
>  
> // c++ code
>  
> class A
> {
> public:
>     enum ATypes
>     {
>         ONE,
>         TWO,
>         THREE
>     };
> };

That is an enum in a class, which is an entirely different beast. Class enums are a C++11 addition and look like this:

enum class ATypes { ONE, TWO, THREE };


Regards,
Wichert.

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From Martin.Franzke at t-systems.com  Wed Mar 12 09:20:04 2014
From: Martin.Franzke at t-systems.com (Martin.Franzke at t-systems.com)
Date: Wed, 12 Mar 2014 09:20:04 +0100
Subject: [C++-sig] How to wrap class enums
In-Reply-To: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>
References: <CADjSrDWgwpiNvigjVRBEE5Yv=XbOL2BS7Oo_HYx10o9aWkz1wA@mail.gmail.com>
Message-ID: <5F36B451F397CC4AAEB701F6E14011F0F1452D5501@HE113565.emea1.cds.t-internal.com>

Hi,

it works exactly the same as for old style enums, you only have to prepend the enum class scope (color::) to reference the values in the c++ code.

enum class color { red = 1, green = 2, blue = 4 };

color identity_(color x) { return x; }
BOOST_PYTHON_MODULE(enums)
{
    enum_<color>("color")
        .value("red", color::red)
        .value("green", color::green)
        .export_values()
        .value("blue", color::blue)
        ;

    def("identity", identity_);
}

What you can't do this way is to create new style python enums (see http://docs.python.org/3.4/library/enum.html), but as the documentation says, the python class is derived
from Python's int type.


Regards

Martin

Von: Cplusplus-sig [mailto:cplusplus-sig-bounces+martin.franzke=t-systems.com at python.org] Im Auftrag von Deepankar Sharma
Gesendet: Samstag, 8. M?rz 2014 21:18
An: cplusplus-sig at python.org
Betreff: [C++-sig] How to wrap class enums

Any pointers on how to expose class enums to Python? Given the following enum what would the boost code to expose it to python look like? The page at http://www.boost.org/doc/libs/1_55_0/libs/python/doc/v2/enum.html only lists examples of old style enums.


enum class t_functions
{
            ADD, SUB, MUL, DIV
};
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From bluescarni at gmail.com  Wed Mar 19 18:23:47 2014
From: bluescarni at gmail.com (Francesco Biscani)
Date: Wed, 19 Mar 2014 17:23:47 +0000
Subject: [C++-sig] Exposing a generic template system in Boost.Python
Message-ID: <CAHExjCu0ybrphgPgKNA0U5VXgX6ndRq0wZguW7n_tXHA3Aj+EQ@mail.gmail.com>

Greetings,

I have been trying to think of a solution about this for a few days now,
but I did not get very far.

I am exposing specific instances of C++ template classes using
Boost.Python. Let's say for the sake of argument that I am exposing
std::vector<of-a-few-types>. What I would like to achieve on the Python
side would be some kind of unified interface of this kind:

# Define a vector-of-ints type.
vec_int = vector["int"]
# Define a vector-of-doubles type.
vec_float = vector["double"]
...

etc., possibly with exceptions being raised if a template type which has
not been exposed is requested. Additionally, the system should
automagically work with nested generic types:

# Define a vector-of-vectors-of-ints type.
vec_vec_int = vector[vector["int"]]

I have played around with some ideas, but it seems like I can never get to
a point where the design does not look bloated and/or brittle. Thus I am
wondering, is there anyone that tackled a problem like this before in
Boost.Python and has pointers/suggestions on how to do this properly?
Support for things like default template arguments would definitely be a
plus.

FWIW, I have access to C++11 on the C++ side, so I can deal with variadic
templates and other amenities in a not-so-kludgy way.

Thanks for any input,

  Francesco.
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From stefan at seefeld.name  Wed Mar 19 18:36:27 2014
From: stefan at seefeld.name (Stefan Seefeld)
Date: Wed, 19 Mar 2014 13:36:27 -0400
Subject: [C++-sig] Exposing a generic template system in Boost.Python
In-Reply-To: <CAHExjCu0ybrphgPgKNA0U5VXgX6ndRq0wZguW7n_tXHA3Aj+EQ@mail.gmail.com>
References: <CAHExjCu0ybrphgPgKNA0U5VXgX6ndRq0wZguW7n_tXHA3Aj+EQ@mail.gmail.com>
Message-ID: <5329D59B.3050707@seefeld.name>

Francesco,

I have done something like what you are suggesting. It essentially boils
down to defining a function template like

template <typename T>
void define_vector(char const *name)
{
   class_<...> vector(name);
  ...
}


and then calling that multiple times:

  define_vector<int>("IVector");
  define_vector<long>("LVector");
  ...

Providing a factory function that instantiates one of those based on a
value-type selector as you want can be easily done on the Python side.

I don't think this can be automated any further. In particular, it is
clear that any type you may want to instantiate in Python has to be
compiled explicitly into the extension module. I.e., you need to
explicitly instantiate the templates above, by explicitly calling the
functions for the types you want to see supported at runtime. There is
no JIT compilation for this.

    Stefan

-- 

      ...ich hab' noch einen Koffer in Berlin...


From nikolay.mladenov at gmail.com  Wed Mar 19 21:27:07 2014
From: nikolay.mladenov at gmail.com (Nikolay Mladenov)
Date: Wed, 19 Mar 2014 16:27:07 -0400
Subject: [C++-sig] Exposing a generic template system in Boost.Python
In-Reply-To: <5329D59B.3050707@seefeld.name>
References: <CAHExjCu0ybrphgPgKNA0U5VXgX6ndRq0wZguW7n_tXHA3Aj+EQ@mail.gmail.com>
 <5329D59B.3050707@seefeld.name>
Message-ID: <CACbdn-+t_N3Eu4sNsHWX+X+O=R8Buu78np0RM2c2uZ+JBnoi-A@mail.gmail.com>

To add to Stefan's answer:

I do the the same and also use visitors to add the same sets of members to
classes, with possible customizations via trait classes.

HTH


On Wed, Mar 19, 2014 at 1:36 PM, Stefan Seefeld <stefan at seefeld.name> wrote:

> Francesco,
>
> I have done something like what you are suggesting. It essentially boils
> down to defining a function template like
>
> template <typename T>
> void define_vector(char const *name)
> {
>    class_<...> vector(name);
>   ...
> }
>
>
> and then calling that multiple times:
>
>   define_vector<int>("IVector");
>   define_vector<long>("LVector");
>   ...
>
> Providing a factory function that instantiates one of those based on a
> value-type selector as you want can be easily done on the Python side.
>
> I don't think this can be automated any further. In particular, it is
> clear that any type you may want to instantiate in Python has to be
> compiled explicitly into the extension module. I.e., you need to
> explicitly instantiate the templates above, by explicitly calling the
> functions for the types you want to see supported at runtime. There is
> no JIT compilation for this.
>
>     Stefan
>
> --
>
>       ...ich hab' noch einen Koffer in Berlin...
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig
>
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From bluescarni at gmail.com  Thu Mar 20 12:30:23 2014
From: bluescarni at gmail.com (Francesco Biscani)
Date: Thu, 20 Mar 2014 11:30:23 +0000
Subject: [C++-sig] Exposing a generic template system in Boost.Python
In-Reply-To: <CACbdn-+t_N3Eu4sNsHWX+X+O=R8Buu78np0RM2c2uZ+JBnoi-A@mail.gmail.com>
References: <CAHExjCu0ybrphgPgKNA0U5VXgX6ndRq0wZguW7n_tXHA3Aj+EQ@mail.gmail.com>
 <5329D59B.3050707@seefeld.name>
 <CACbdn-+t_N3Eu4sNsHWX+X+O=R8Buu78np0RM2c2uZ+JBnoi-A@mail.gmail.com>
Message-ID: <CAHExjCsNWuiehh0aKSj=CH0GovQWW55TNe_OB6t17AaA+jHJ=A@mail.gmail.com>

Hello Stefan and Nikolay,

thanks for the replies. I have been using as well approaches similar to
those you outlined. My main concern is the automation of the whole
procedure. I have a fairly complicated hierarchy of template classes that I
am exposing, and I need to be able to add new exposed instances in a kind
of programmatic way (e.g., I am using a global counter n that gets
increased each time a new instance is exposed, and I am calling the exposed
classes "__vecor_type_0", "__vecor_type_1", ..., "__vecor_type_n"). Then I
need to re-establish the connection between these names and the "template
system" implemented on the Python side.

I think it would be nice to have a Boost.Python mechanism to handle this
type of usage, but for now I will try to get something working for my
specific case (and then maybe reply here if I manage and if there is
interest). Thanks for the help and kind regards,

  Francesco.


On 19 March 2014 20:27, Nikolay Mladenov <nikolay.mladenov at gmail.com> wrote:

> To add to Stefan's answer:
>
> I do the the same and also use visitors to add the same sets of members to
> classes, with possible customizations via trait classes.
>
> HTH
>
>
> On Wed, Mar 19, 2014 at 1:36 PM, Stefan Seefeld <stefan at seefeld.name>wrote:
>
>> Francesco,
>>
>> I have done something like what you are suggesting. It essentially boils
>> down to defining a function template like
>>
>> template <typename T>
>> void define_vector(char const *name)
>> {
>>    class_<...> vector(name);
>>   ...
>> }
>>
>>
>> and then calling that multiple times:
>>
>>   define_vector<int>("IVector");
>>   define_vector<long>("LVector");
>>   ...
>>
>> Providing a factory function that instantiates one of those based on a
>> value-type selector as you want can be easily done on the Python side.
>>
>> I don't think this can be automated any further. In particular, it is
>> clear that any type you may want to instantiate in Python has to be
>> compiled explicitly into the extension module. I.e., you need to
>> explicitly instantiate the templates above, by explicitly calling the
>> functions for the types you want to see supported at runtime. There is
>> no JIT compilation for this.
>>
>>     Stefan
>>
>> --
>>
>>       ...ich hab' noch einen Koffer in Berlin...
>>
>> _______________________________________________
>> Cplusplus-sig mailing list
>> Cplusplus-sig at python.org
>> https://mail.python.org/mailman/listinfo/cplusplus-sig
>>
>
>
> _______________________________________________
> Cplusplus-sig mailing list
> Cplusplus-sig at python.org
> https://mail.python.org/mailman/listinfo/cplusplus-sig
>
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