问题
I am trying to setup and compile the Hello World example for Boost.Python: http://www.boost.org/doc/libs/1_57_0/libs/python/doc/tutorial/doc/html/python/hello.html
I installed bjam, boost, boost-build, and boost-python from Homebrew:
brew install bjam
brew install boost
brew install boost-build
brew install boost-python
My python install is also via Homebrew. I am not sure how to properly modify the example Jamroot
file so that it is compatible with my system setup. I changed the boost path to : /usr/local/Cellar/boost;
but I'm not sure of the other paths that need to be changed. The current setup gives me the following error:
> bjam
notice: no Python configured in user-config.jam
notice: will use default configuration
Jamroot:26: in modules.load
*** argument error
* rule use-project ( id : where )
* called with: ( boost : /usr/local/Cellar/boost; project : requirements <library>/boost/python//boost_python <implicit-dependency>/boost//headers : usage-requirements <implicit-dependency>/boost//headers )
* extra argument project
/usr/local/share/boost-build/build/project.jam:1138:see definition of rule 'use-project' being called
/usr/local/share/boost-build/build/project.jam:311: in load-jamfile
/usr/local/share/boost-build/build/project.jam:64: in load
/usr/local/share/boost-build/build/project.jam:145: in project.find
/usr/local/share/boost-build/build-system.jam:535: in load
/usr/local/share/boost-build/kernel/modules.jam:289: in import
/usr/local/share/boost-build/kernel/bootstrap.jam:139: in boost-build
/usr/local/share/boost-build/boost-build.jam:8: in module scope
回答1:
Summary
- Don't use
BJAM
it's a waste of your time - I am assuming your interest inBJAM
is a side-product of getting your code to actually work - Here is the quick-link to my github page where I do a
hello_world
exampleusing namespace boost::python
- See my github for linking multiple boost files into one import library
Longer Answer
I have exactly the same setup as you. I spent ages getting this to work as the documentation is really shady (as you know) and before you know it you go down some weird rabbit hole trying to hack make files and BJAM
installations.
You can use a setup.py
as you would normally with C
code as follows...
Installation
You can obtain the correct boost-python through homebrew
via the command:
brew install boost --with-python --build-from-source
I think brew install boost should work but it's a big install and life is short to do it twice
Boost code
Assume the following code in hello_ext.cpp
#include <boost/python.hpp>
char const* greet()
{
return "Greetings!";
}
BOOST_PYTHON_MODULE(hello_ext)
{
using namespace boost::python;
def("greet", greet);
}
Python setup
Then you can write setup.py
file as
from distutils.core import setup
from distutils.extension import Extension
hello_ext = Extension(
'hello_ext',
sources=['hello_ext.cpp'],
libraries=['boost_python-mt'],
)
setup(
name='hello-world',
version='0.1',
ext_modules=[hello_ext])
Compiling
The following example can be used by:
python setup.py build_ext --inplace
which will create the following build/ directory and file:
build/
hello_ext.so
Running
This can be directly now called by python with:
In [1]: import hello_ext
In [2]: hello_ext.greet()
Out[2]: 'Greetings!'
来源:https://stackoverflow.com/questions/28571611/boost-python-hello-world-on-mac-os-x