The Boost Python Library is a framework for interfacing Python and C++. It
allows you to quickly and seamlessly expose C++ classes functions and objects
to Python, and vice-versa, using no special tools -- just your C++ compiler.
It is designed to wrap C++ interfaces non-intrusively, so that you should not
have to change the C++ code at all in order to wrap it, making Boost.Python
ideal for exposing 3rd-party libraries to Python. The library's use of advanced
metaprogramming techniques simplifies its syntax for users, so that wrapping
code takes on the look of a kind of declarative interface definition language
(IDL).
Metaprogramming is the writing of computer programs that write or manipulate other programs (or themselves) as their data, or that do part of the work at compile time that would otherwise be done at runtime.