Boost Python Examples

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• C++ Boost

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C++ Boost Python

• Installation
  • Ubuntu
  • Mac
• Demo
  • python3 hello_ext example
  • python2 hello_ext example
• Examples

  • hello_ext

  • class_hello

  • class_member

  • class_property

  • inheritance

  • class_virtual

  • class_virtual_nopure

  • operators

  • special_operators

  • call_policies

  • overloading

  • Object Interface

    • basic_interface
    • derived_object_types
    • extracting_c++_objects
    • enums
    • reference_count

  • embedding

  • iterators

  • exception_translation

Boost Installation with python3 support

• OS Ubuntu 16.10

• From source

  • Download the latest version here

  • Description of user-config.jam please refer to here

      tar -xzvf boost_1_65_1.tar.gz
      cd boost_1_65_1
    
      # sudo find / -name "python3.5m" # If you don't know where python3.5m is
      # which python3 # If you don't know your python3 install directory
      echo "using mpi ;
      using gcc :  : g++ ;
      using python : 3.5 : /usr/bin/python3 : /usr/include/python3.5m : /usr/local/lib ;" > ~/user-config.jam
    
      ./bootstrap.sh --with-python=/usr/bin/python3 --with-python-version=3.5 --with-python-root=/usr/local/lib/python3.5 --prefix=/usr/local
      sudo ./b2 install -a --with=all
      sudo ldconfig
    

• From apt

  sudo apt-get install libboost-all-dev
  # link libboost_python3.so
  sudo find / -name "libboost_python-py35.so"
  # cd to where you find it
  cd /usr/lib/x86_64-linux-gnu/
  sudo ln -s libboost_python-py35.so libboost_python3.so
  

• OS Mac

    brew install boost-python --with-python3
    # if your python version or lib path is different from mine, please change
    # INCLUDE_PATH and LIBPYTHON_PATH in makefile
  
    # INCLUDE_PATH:
    # shold be the path contains "pyconfig.h", below two command can help you find the path
    # sudo find / -name "pyconfig.h"
    # python3 -c "import sys; print('\n'.join(sys.path))"
  
    # LIBPYTHON_PATH:
    # on mac, with version python3.6, lib name is: libpython3.6.dylib
    # sudo find / -name "libpython3.6"
  

Demo

• If you install from source, and you change the prefix path when install, you need also change the BOOST_INC and BOOST_LIB in makefile
• My default python version is python3.5 on Ubuntu, python3.6 on Mac, if you want to use with python 2.7, change "PYTHON_VERSION" in makefile

python3 hello_ext

git clone https://github.com/zpoint/Boost-Python-Examples.git
cd Boost-Python-Examples/Examples/hello_ext
make

python3
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import hello_ext
>>> hello_ext.greet()
'hello, world'

python2 hello_ext

git clone https://github.com/zpoint/Boost-Python-Examples.git
cd Boost-Python-Examples/Examples/hello_ext
vim makefile # change the first line "PYTHON_VERSION = None" to "PYTHON_VERSION = 2.7"
make

python
Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import hello_ext
>>> hello_ext.greet()
'hello, world'