Compiling Boost.Python toy example fails: ''error: expected unqualified-id before ‘%’ token %%bp_module" - boost-python

Question

I'm trying to compile a toy example using Boost.Python. I can compile the "quickstart" example.
However when I try to compile this toy example smoke_test.cpp:
%%bp_module smoke_test
#include <boost/python.hpp>
int test() {return 42; }
BOOST_PYTHON_MODULE(smoke_test)
{
boost::python::def("test",test);
}
and smoke_test.py:
import smoke_test
smoke_test.test()
using this Jamfile:
import python ;
import testing ;
project quickstart
: requirements
<location>.
;
# Declare a Python extension called hello.
python-extension extending : smoke_test.cpp ;
I get the following error:
smoke_test.cpp:1:1: error: expected unqualified-id before ‘%’ token
%%bp_module smoke_test
^
Does anyone know whats going wrong? I assume my Jamfile is incorrect but I'm not sure how to fix it.
I'm using boos 1.63.0 and python 2.7.

Answer 1

I guess the %%bp_module smoke_test line was false as mentioned by #doqtor. This was probably a toy example made for ipython notebook only. Although I couldn't figure out how to use bjam and Jamfiles to compile the code, I'm still now able to compile with this minimal Makefile example using my Ubuntu 14.04 system boost version (1.54.0):
PYTHON_VERSION = 2.7
PYTHON_INCLUDE = /usr/include/python$(PYTHON_VERSION)
# location of the Boost Python include files and library
BOOST_INC = /usr/include
BOOST_LIB = /usr/lib
# compile mesh classes
TARGET = smoke_test
$(TARGET).so: $(TARGET).o
g++ -shared -Wl,--export-dynamic $(TARGET).o -L$(BOOST_LIB) -lboost_python -L/usr/lib/python$(PYTHON_VERSION)/config -lpython$(PYTHON_VERSION) -o $(TARGET).so
$(TARGET).o: $(TARGET).cpp
g++ -I$(PYTHON_INCLUDE) -I$(BOOST_INC) -fPIC -c $(TARGET).cpp