Mercurial > pytave
view pyexec.cc @ 269:8c543a859ba2
* @pyobject/subsasgn.m: Fix small lambda syntax error with Python 3.
author | Mike Miller <mtmiller@octave.org> |
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date | Fri, 29 Jul 2016 13:03:29 -0700 |
parents | c02f0a4c92e7 |
children | b4e56f7255f7 |
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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/>. */ #if defined (HAVE_CONFIG_H) # include <config.h> #endif #include <dlfcn.h> #include <boost/python.hpp> #include <boost/python/numeric.hpp> #include <oct.h> #define PYTAVE_DO_DECLARE_SYMBOL #include "arrayobjectdefs.h" #include "exceptions.h" #include "python_to_octave.h" using namespace boost::python; DEFUN_DLD (pyexec, args, nargout, "-*- texinfo -*-\n\ @deftypefn {} {} pyexec (@var{expr})\n\ Execute a Python expression or block of code.\n\ \n\ Examples:\n\ @example\n\ @group\n\ pyexec (\"print(42)\")\n\ @print{} 42\n\ @end group\n\ @end example\n\ @seealso{pycall, pyeval}\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 (); Py_Initialize (); object main_module = import ("__main__"); object main_namespace = main_module.attr ("__dict__"); try { // FIXME: 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); } catch (pytave::object_convert_exception const &) { error ("pyexec: error in return value type conversion"); } catch (error_already_set const &) { std::string message = pytave::fetch_exception_message (); error ("pyexec: %s", message.c_str ()); } return retval; } /* %!error <NameError> %! pyexec ("raise NameError ('oops')") %!error <AttributeError> %! pyexec ("import sys") %! pyexec ("sys.no_such_thing") */