Re: [Boost-users] [Python]compiling python library

Subject: Re: [Boost-users] [Python]compiling python library
From: Miklós Tóth (spiralfuzet_at_[hidden])
Date: 2014-06-11 05:32:48

Hi!

There is something I don't understand.
After I installed Python27 and setuptools what should I do?
How to get CPython API? I'm completely lost over here.

M.

2014-06-05 17:24 GMT+02:00 Erik H <ice.rikh_at_[hidden]>:

> But you do want to build a Python lib (extension).  Boost::python uses the
> cpython API in the same way as any other python extension and it has the
> same requirements.  Just as you should be able to build pyqt with mingw
> linking against the official Python binaries, you should be able to build a
> boost::python extension with mingw linking against the official Python
> binaries.
>
> However, that is all hearsay.  It *should* work, according to *stuff I
> read online*.  I will try it at home tonight to confirm/deny this putative
> workingness.
>
> Glad to be of help.
>
> -Erik
>
>
>
> On Thu, Jun 5, 2014 at 6:18 AM, Miklós Tóth <spiralfuzet_at_[hidden]> wrote:
>
>> Hi Erik,
>>
>> Unfortunatly Visual Studio is not an option for me.
>>
>> I didn't find this page but as I understand it helps to install python
>> libs (extensions) with mingw. What I try to do is build python from src to
>> get an appropriate static library.
>> I can link it with my Qt toolchain (Mingw 4.6.3) and it compiles without
>> error, but it fails to run.
>> I double check it. All of my libs and tools are 32-bit.
>>
>> Thank you very much for your help.
>>
>> Regards,
>> Miklós
>>
>>
>> 2014-06-04 18:50 GMT+02:00 Erik H <ice.rikh_at_[hidden]>:
>>
>> This is educational for me; to minimize pain, I settled on visual studio
>>> + intel compiler long ago whenever I am coerced into windows development.
>>>
>>> You mentioned that did some surfing; did you encounter this page
>>> <http://www.secker.nl/2012/03/08/setup-python-2-7-2-and-mingw-on-windows-xp/>?
>>> Apparently, mingw should be able to link against the standard, visual
>>> studio compiled python lib.  Which would be a blessing for you if it
>>> works... Are you trying to build 32-bit binaries linked against 64-bit
>>> python libs by any chance?
>>>
>>> If you don't get any joy, I'll try setting up an official python
>>> binaries + mingw environment on my windwoes system at home after work today
>>> or tomorrow.  Are you strictly targeting 2.7?
>>>
>>> -Erik
>>>
>>>
>>> On Wed, Jun 4, 2014 at 3:07 AM, Miklós Tóth <spiralfuzet_at_[hidden]>
>>> wrote:
>>>
>>>> Hi Erik,
>>>>
>>>> Thanks for the response.
>>>> Yes I'm using makefile but I think the problem is different.
>>>> Here is the gcc command that fails:
>>>> gcc -c -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall
>>>> -Wstrict-prototypes  -I. -IInclude -I./Include   -DPy_BUILD_CORE -o
>>>> Python/asdl.o Python/asdl.c
>>>> It has a -I./Include argument.
>>>>
>>>> So, I surf the Internet (a lot) and I found that at initial there were
>>>> no autotool support for installing python from source.
>>>> Later I found a Python 3.4 page were I could download an src setup for
>>>> mingw installation. Unfortunatly that doesn't work either.
>>>> So I reinstalled my Python and somehow I could link the library to my
>>>> project. (I don't know how this possible, but the latest version of 2.7
>>>> works with my project. Blind luck I guess.) I could use
>>>> PyRun_SimpleString but the PyRun_SimpleFileEx call crashes for some
>>>> reason.
>>>> Than I tried boost::python and it crashes aswell at the first object
>>>> result = eval("5/2"); call.
>>>> (I didn't forget to call Py_Initialize();).
>>>>
>>>> Any suggestions?
>>>>
>>>> Thanks,
>>>> Miklós
>>>>
>>>>
>>>> 2014-06-03 23:18 GMT+02:00 Erik H <ice.rikh_at_[hidden]>:
>>>>
>>>> Hi Miklós,
>>>>>
>>>>> Are you using a makefile?  If so, it looks like you need to
>>>>> add -I/cygdrive/e/INSTALL/python_src/Python-2.7.6/Include to the Makefile's
>>>>> CFLAGS or CC variable, or somehow ensure that
>>>>> -I/cygdrive/e/INSTALL/python_src/Python-2.7.6/Include is passed to the
>>>>> compiler in any case.
>>>>>
>>>>> Regards,
>>>>> Erik
>>>>>
>>>>>
>>>>> On Mon, Jun 2, 2014 at 3:17 AM, Miklós Tóth <spiralfuzet_at_[hidden]>
>>>>> wrote:
>>>>>
>>>>>> Hi!
>>>>>>
>>>>>> Any updates on this?
>>>>>> I get the following error:
>>>>>>
>>>>>> /cygdrive/e/INSTALL/python_src/Python-2.7.6
>>>>>> $ mingw32-make
>>>>>> process_begin: CreateProcess(NULL, /usr/bin/mkdir -p Include, ...) failed.
>>>>>> make (e=2): The system cannot find the file specified.
>>>>>> mingw32-make: *** [Include/graminit.h] Error 2
>>>>>>
>>>>>> but the corresponding file is there:
>>>>>>
>>>>>> /cygdrive/e/INSTALL/python_src/Python-2.7.6
>>>>>> $ ls Include/g*Include/genobject.h  Include/graminit.h  Include/grammar.h
>>>>>>
>>>>>> What am I missing? Any thoughts?
>>>>>>
>>>>>> Thanks,
>>>>>> Miklós
>>>>>>
>>>>>>
>>>>>> 2014-05-27 14:06 GMT+02:00 Miklós Tóth <spiralfuzet_at_[hidden]>:
>>>>>>
>>>>>> Hi All,
>>>>>>> I want to embed python in my c++ code using boost.python library.
>>>>>>> As far as I understand I need python headers and libs.
>>>>>>> So my python27.lib is "incompatible". I want to compile it from code
>>>>>>> but I failed with mingw32.
>>>>>>> Could you give me some advice, or links to achieve my goal?
>>>>>>> I'm using gcc4.6.3 and qt 4.8.2 and boost 1.49 on windows 7.
>>>>>>> Thanks,
>>>>>>> Miklós
>>>>>>>
>>>>>>
>>>>>>
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