python3工具庫boost介紹 用c++為python編寫擴充套件
摘要：
概述
有不同的方法來用C++擴充套件Python：
Swig
使用Boost.Python，可選擇使用Py++預處理
使用Cython。
Cython出現之前，Boost.Python是編寫C ++擴充套件模組最爽的方...
概述
- Swig
- 使用Boost.Python，可選擇使用Py++預處理
- 使用Cython。
Cython出現之前，Boost.Python是編寫C ++擴充套件模組最爽的方式。
Boost.Python整合在Boost C++ Libraries中。 要在Ubuntu系統上安裝；
$ sudo apt-get install libboost-python-dev $ sudo apt-get install python-dev
快速入門
hellomodule.cpp
#include <iostream>
using namespace std;
void say_hello(const char* name) {
cout << "Hello " <<name << "!\n";
}
#include <boost/python/module.hpp>
#include <boost/python/def.hpp>
using namespace boost::python;
BOOST_PYTHON_MODULE(hello)
{
def("say_hello", say_hello);
}
setup.py
#!/usr/bin/env python
# 技術支援qq群： 144081101 591302926 567351477 釘釘免費群：21745728
from distutils.core import setup
from distutils.extension import Extension
setup(name="PackageName",
ext_modules=[
Extension("hello", ["hellomodule.cpp"],
libraries = ["boost_python"])
])
編譯：
python2.7 setup.py build running build running build_ext building 'hello' extension creating build/temp.linux-x86_64-2.7 x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-nbjU53/python2.7-2.7.15~rc1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c hellomodule.cpp -o build/temp.linux-x86_64-2.7/hellomodule.o cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ creating build/lib.linux-x86_64-2.7 x86_64-linux-gnu-g++ -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-nbjU53/python2.7-2.7.15~rc1=. -fstack-protector-strong -Wformat -Werror=format-security -Wl,-Bsymbolic-functions -Wl,-z,relro -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-nbjU53/python2.7-2.7.15~rc1=. -fstack-protector-strong -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/hellomodule.o -lboost_python -o build/lib.linux-x86_64-2.7/hello.so
執行：
$ python2.7 Python 2.7.15rc1 (default, Apr 15 2018, 21:51:34) [GCC 7.3.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import hello >>> hello.say_hello("World") Hello World!
python3怎麼辦？
$ python3 Python 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56) [GCC 7.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import hello Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: /usr/lib/x86_64-linux-gnu/libboost_python-py27.so.1.65.1: undefined symbol: PyClass_Type
setup.py
#!/usr/bin/env python
from distutils.core import setup
from distutils.extension import Extension
setup(name="PackageName",
ext_modules=[
Extension("hello", ["hellomodule.cpp"],
libraries = ["boost_python"])
])
編譯：
$ python3 setup.py build running build running build_ext building 'hello' extension creating build creating build/temp.linux-x86_64-3.6 gcc -pthread -B /usr/local/anaconda/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/anaconda/include/python3.6m -c hellomodule.cpp -o build/temp.linux-x86_64-3.6/hellomodule.o cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ creating build/lib.linux-x86_64-3.6 g++ -pthread -shared -B /usr/local/anaconda/compiler_compat -L/usr/local/anaconda/lib -Wl,-rpath=/usr/local/anaconda/lib -Wl,--no-as-needed -Wl,--sysroot=/ build/temp.linux-x86_64-3.6/hellomodule.o -lboost_python3-py36 -o build/lib.linux-x86_64-3.6/hello.cpython-36m-x86_64-linux-gnu.so
執行：
$ python3
Python 3.6.5 |Anaconda, Inc.| (default, Apr 29 2018, 16:14:56)
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import hello
>>> hello.say_hello("World")
Hello World!
如何知道用哪個python so？
$ ll /usr/lib/x86_64-linux-gnu/libboost_python*.so lrwxrwxrwx 1 root root 31 3月6 18:21 /usr/lib/x86_64-linux-gnu/libboost_python3-py36.so -> libboost_python3-py36.so.1.65.1 lrwxrwxrwx 1 root root 24 3月6 18:21 /usr/lib/x86_64-linux-gnu/libboost_python3.so -> libboost_python3-py36.so lrwxrwxrwx 1 root root 30 3月6 18:21 /usr/lib/x86_64-linux-gnu/libboost_python-py27.so -> libboost_python-py27.so.1.65.1 lrwxrwxrwx 1 root root 24 3月6 18:21 /usr/lib/x86_64-linux-gnu/libboost_python-py36.so -> libboost_python3-py
參考資料
- ofollow,noindex">本文最新版本地址
- 本文涉及的python測試開發庫 謝謝點贊！
- 本文相關海量書籍下載
- Python Programming/Extending with C++