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copied!<p>Does it have to be <code>std::list</code> ? If you use <code>std::vector</code> instead you can use <code>boost::python::vector_indexing_suite</code> to wrap the list. See <a href="https://stackoverflow.com/questions/6157409/stdvector-to-boostpythonlist/6158370#6158370" title="this post">this post</a> for details.</p> <p>If you must use <code>std::list</code> you'll need to create a helper class that wraps the <code>std::list</code> functionality with python's <code>list</code> methods. That can be quite involved, but doable.</p> <p><strong>std_item.hpp:</strong></p> <pre><code>#include <list> #include <algorithm> #include <boost/python.hpp> template<class T> struct listwrap { typedef typename T::value_type value_type; typedef typename T::iterator iter_type; static void add(T & x, value_type const& v) { x.push_back(v); } static bool in(T const& x, value_type const& v) { return std::find(x.begin(), x.end(), v) != x.end(); } static int index(T const& x, value_type const& v) { int i = 0; for(T::const_iterator it=x.begin(); it!=x.end(); ++it,++i) if( *it == v ) return i; PyErr_SetString(PyExc_ValueError, "Value not in the list"); throw boost::python::error_already_set(); } static void del(T& x, int i) { if( i<0 ) i += x.size(); iter_type it = x.begin(); for (int pos = 0; pos < i; ++pos) ++it; if( i >= 0 && i < (int)x.size() ) { x.erase(it); } else { PyErr_SetString(PyExc_IndexError, "Index out of range"); boost::python::throw_error_already_set(); } } static value_type& get(T& x, int i) { if( i < 0 ) i += x.size(); if( i >= 0 && i < (int)x.size() ) { iter_type it = x.begin(); for(int pos = 0; pos < i; ++pos) ++it; return *it; } else { PyErr_SetString(PyExc_IndexError, "Index out of range"); throw boost::python::error_already_set(); } } static void set(T& x, int i, value_type const& v) { if( i < 0 ) i += x.size(); if( i >= 0 && i < (int)x.size() ) { iter_type it = x.begin(); for(int pos = 0; pos < i; ++pos) ++it; *it = v; } else { PyErr_SetString(PyExc_IndexError, "Index out of range"); boost::python::throw_error_already_set(); } } }; template<class T> void export_STLList(const char* typeName) { using namespace boost::python; class_<std::list<T> >(typeName) .def("__len__", &std::list<T>::size) .def("clear", &std::list<T>::clear) .def("append", &listwrap<T>::add, with_custodian_and_ward<1,2>()) // to let container keep value .def("__getitem__", &listwrap<T>::get, return_value_policy<copy_non_const_reference>()) .def("__setitem__", &listwrap<T>::set, with_custodian_and_ward<1,2>()) // to let container keep value .def("__delitem__", &listwrap<T>::del) .def("__contains__", &listwrap<T>::in) .def("__iter__", iterator<std::list<T> >()) .def("index", &listwrap<T>::index); } </code></pre> <p><strong>usage:</strong></p> <pre><code>typedef std::list<int> intlist; export_STLList<int>("intlist"); </code></pre>

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