/usr/include/dlib/python/serialize_pickle.h is in libdlib-dev 18.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_SERIALIZE_PiCKLE_Hh_
#define DLIB_SERIALIZE_PiCKLE_Hh_
#include <dlib/serialize.h>
#include <boost/python.hpp>
#include <sstream>
#include <dlib/vectorstream.h>
template <typename T>
struct serialize_pickle : boost::python::pickle_suite
{
static boost::python::tuple getstate(
const T& item
)
{
using namespace dlib;
std::vector<char> buf;
buf.reserve(5000);
vectorstream sout(buf);
serialize(item, sout);
return boost::python::make_tuple(boost::python::handle<>(
PyBytes_FromStringAndSize(buf.size()?&buf[0]:0, buf.size())));
}
static void setstate(
T& item,
boost::python::tuple state
)
{
using namespace dlib;
using namespace boost::python;
if (len(state) != 1)
{
PyErr_SetObject(PyExc_ValueError,
("expected 1-item tuple in call to __setstate__; got %s"
% state).ptr()
);
throw_error_already_set();
}
// We used to serialize by converting to a str but the boost.python routines for
// doing this don't work in Python 3. You end up getting an error about invalid
// UTF-8 encodings. So instead we access the python C interface directly and use
// bytes objects. However, we keep the deserialization code that worked with str
// for backwards compatibility with previously pickled files.
if (extract<str>(state[0]).check())
{
str data = extract<str>(state[0]);
std::string temp(extract<const char*>(data), len(data));
std::istringstream sin(temp);
deserialize(item, sin);
}
else if(PyBytes_Check(object(state[0]).ptr()))
{
object obj = state[0];
char* data = PyBytes_AsString(obj.ptr());
unsigned long num = PyBytes_Size(obj.ptr());
std::istringstream sin(std::string(data, num));
deserialize(item, sin);
}
else
{
throw error("Unable to unpickle, error in input file.");
}
}
};
#endif // DLIB_SERIALIZE_PiCKLE_Hh_
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