Cannot successfully install Boost.Python

Question

I am trying to install Boost.Python on my computer. (Windows7 64bit, Visual Studio 2012, Python 2.7 64bit and Boost 1.54)

Following the instruction, I've successfully installed the Boost Library, and then I have to separately install Boost.Python.

However, as I followed the instruction at here. I am stuck at step 3.1.4.

I input C:\boost_1_54_0\…\quickstart> bjam toolset=msvc --verbose-test test

Then there are 135 unresolved external errors pop out. One of them is:

exec.obj : error LNK2019: unresolved external symbol __imp__PyEval_GetGlobals referenced in function "class boost::python::api::object __cdecl boost::python::eval(class boost::python::str,class boost::python::api::object,class boost::python::api::object)" (?eval@python@boost@@YA?AVobject@api@12@Vstr@12@V3412@1@Z)........\bin.v2\libs\python\build\msvc-11.0\debug\boost_python-vc110-gd-1_54.dll

May I know how can I work around this?

=========================================================

Edit:

Following @Kyle 's advice, I've uninstalled the 64bit Python and replace it with a 32bit Python (2.7.5).

Then I've wrote a very simple code, which is like follows:

#include <boost\python.hpp>       // This header used to raise error before
#include <Python.h>
using namespace std;

void main()
{
    return;
}

It works well. Then my curiosity pushed me one step further, and I tried the example in my first post. It turns out that those 135 unresolved external errors are gone. Instead, I've got this:

msvc.link.dll bin\msvc-11.0\debug\extending.pyd LINK : fatal error

LNK1104: cannot open file 'boost_python-vc110-mt-gd-1_54.lib'

call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86

nullink /NOLOGO /INCREMENTAL:NO /DLL /DEBUG /MACHINE:X86 /MANIFEST /subsystem:console /out:"bin\msvc-11.0\debug\extending.pyd" /IMPLIB:"bin\msvc-11.0\debug\extendi ng.lib" /LIBPATH:"C:\Python2.7.5\libs"
@"bin\msvc-11.0\debug\extending.pyd.rsp "
    if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
...failed msvc.link.dll bin\msvc-11.0\debug\extending.pyd

bin\msvc-11.0\debug\extending.lib bin\msvc-11.0\debug\extending.pdb...

...skipped test_ext for lack of extending.pyd...

msvc.link bin\test_embed.test\msvc-11.0\debug\test_embed.exe LINK : warning

LNK4001: no object files specified; libraries used LINK : error

LNK2001: unresolved external symbol _mainCRTStartup

bin\test_embed.test\msvc-11.0\debug\test_embed.exe : fatal error

LNK1120: 1 unresolved externals

call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86 nul

link /NOLOGO /INCREMENTAL:NO /DEBUG /MACHINE:X86 /MANIFEST /subsystem:console

/out:"bin\test_embed.test\msvc-11.0\debug\test_embed.exe"

/LIBPATH:"C:\Python2.7.5\libs"

@"bin\test_embed.test\msvc-11.0\debug\test_embed.exe.rsp"
    if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
...failed msvc.link bin\test_embed.test\msvc-11.0\debug\test_embed.exe

bin\test_ embed.test\msvc-11.0\debug\test_embed.pdb...

...removing bin\test_embed.test\msvc-11.0\debug\test_embed.pdb

...skipped test_embed.run for lack of test_embed.exe...

...failed updating 5 targets...

...skipped 4 targets...

Sorry to bother you with a large chunk of error message, I just want to provide as more information as I can.

About this boost_python-vc110-gd-1_54.dll, I can find it at C:\local\boost_1_54_0_32bit\lib32-msvc-11.0, while the root of my Boost is C:\local\boost_1_54_0_32bit\.

Can anyone help me work around with this?

This looks as though it is the same question as the one posted hours earlier. If they are the same, then please elaborate on the problem in a single question, rather than creating duplicates. — Tanner Sansbury
– Tanner Sansbury, Commented Sep 25, 2013 at 16:21

teeks99 · Accepted Answer · 2015-04-10 17:45:22Z

2

Like Kyle C mentioned, this is happening because it can't find the lib. If you want to use 64-bit, you need to specify address-model=64 on the command line, plus have the 64-bit version of python correctly specified in your user-config.jam file.

I documented what I had to do to get this running, see the bottom for 64-bit specific config.

answered Apr 10, 2015 at 17:45

teeks99

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Kyle C · Accepted Answer · 2013-09-25 15:42:37Z

1

This means that the linker can't properly link to the Python lib. I have run into this before when trying to link to 64bit Python. You should try installing 32bit python and see if that works.

answered Sep 25, 2013 at 15:42

Kyle C

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4 Comments

ChangeMyName Over a year ago

Hi, Kyle. Thanks for your advice. May I know how did you solve it? By installing a 32bit Python? I'm afraid that I cannot change Python version due to system limitation.

Kyle C Over a year ago

Correct, I solved it just by installing 32bit Python. I'm not sure what the details are around linking 64bit Python, but perhaps that can get you looking in the right spot.

ChangeMyName Over a year ago

Yes, thanks. Inspired by you, I'm trying to build Boost.Python in different ways. Would you mind tell me what was your system? Many thanks. :)

Kyle C Over a year ago

Sure, I had a very similar setup. Win 7 64bit, 32bit Python, VS 2012, Boost 1.54.

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