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Contents
// Copyright (C) 2013 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_BOOST_PYTHON_UtILS_Hh_
#define DLIB_BOOST_PYTHON_UtILS_Hh_
#include <boost/python.hpp>
#include <vector>
#include <string>
#include <dlib/serialize.h>
inline bool hasattr(
boost::python::object obj,
const std::string& attr_name
)
/*!
ensures
- if (obj has an attribute named attr_name) then
- returns true
- else
- returns false
!*/
{
return PyObject_HasAttrString(obj.ptr(), attr_name.c_str());
}
// ----------------------------------------------------------------------------------------
template <typename T>
std::vector<T> python_list_to_vector (
const boost::python::object& obj
)
/*!
ensures
- converts a python object into a std::vector<T> and returns it.
!*/
{
std::vector<T> vect(len(obj));
for (unsigned long i = 0; i < vect.size(); ++i)
{
vect[i] = boost::python::extract<T>(obj[i]);
}
return vect;
}
template <typename T>
boost::python::list vector_to_python_list (
const std::vector<T>& vect
)
/*!
ensures
- converts a std::vector<T> into a python list object.
!*/
{
boost::python::list obj;
for (unsigned long i = 0; i < vect.size(); ++i)
obj.append(vect[i]);
return obj;
}
// ----------------------------------------------------------------------------------------
template <typename T>
boost::shared_ptr<T> load_object_from_file (
const std::string& filename
)
/*!
ensures
- deserializes an object of type T from the given file and returns it.
!*/
{
std::ifstream fin(filename.c_str(), std::ios::binary);
if (!fin)
throw dlib::error("Unable to open " + filename);
boost::shared_ptr<T> obj(new T());
deserialize(*obj, fin);
return obj;
}
// ----------------------------------------------------------------------------------------
#endif // DLIB_BOOST_PYTHON_UtILS_Hh_
Version data entries
13 entries across 13 versions & 1 rubygems