Mercurial > pytave
view pyexec.cc @ 161:dfea7eee7749
add pyexec and pyeval commands
* pyeval.cc: new oct file.
* pyexec.cc: new oct file.
* Makefile.am (OCT_FILES): Include pyeval.oct and pyexec.oct in the list.
author | Colin Macdonald <cbm@m.fsf.org> |
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date | Thu, 10 Mar 2016 23:43:15 -0800 |
parents | |
children | df7b4a5ab542 |
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/* Copyright (C) 2016 Colin B. Macdonald This file is part of Pytave. Pytave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Pytave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Pytave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <dlfcn.h> #include <boost/python.hpp> #include <boost/python/numeric.hpp> /* Both boost::python and octave define HAVE_STAT and HAVE_FSTAT. Ideally, they shouldn't expose their configuration in the header files, but they do. This silences the compiler warning. */ #undef HAVE_STAT #undef HAVE_FSTAT #include <oct.h> #define PYTAVE_DO_DECLARE_SYMBOL #include "pytavedefs.h" #include "arrayobjectdefs.h" #include "exceptions.h" #include "python_to_octave.h" using namespace boost::python; DEFUN_DLD (pyexec, args, nargout, "-*- texinfo -*-\n\ @deftypefn {Loadable Function} pyexec (@var{func})\n\ Execute some python code.\n\ \n\ @end deftypefn") { octave_value_list retval; int nargin = args.length (); if (nargin != 1) { print_usage (); return retval; } std::string code = args(0).string_value (); dlopen("libpython2.7.so", RTLD_GLOBAL|RTLD_LAZY); Py_Initialize (); try { object main_module = import ("__main__"); object main_namespace = main_module.attr ("__dict__"); // TODO: figure out exec return code: // http://www.boost.org/doc/libs/1_38_0/libs/python/doc/v2/exec.html exec (code.c_str (), main_namespace, main_namespace); //std::cerr << "exec done" << std::endl; } // just copy-pasted from py.cc catch (pytave::object_convert_exception const &) { error ("pyexec: error in return value type conversion"); } catch (error_already_set const &) { PyObject *ptype, *pvalue, *ptraceback; PyErr_Fetch (&ptype, &pvalue, &ptraceback); try { std::string message = extract<std::string> (pvalue); error ("pyexec: %s", message.c_str ()); } catch (error_already_set const &) { PyErr_Restore (ptype, pvalue, ptraceback); PyErr_Print (); } } return retval; }