Mercurial > pytave
view pyexec.cc @ 329:778c91283a73
Add isequal method to allow comparing pyobjects (fixes issue #53)
* @pyobject/pyobject.m: Add an 'isequal' method to fix a BIST test and some
more tests.
author | Abhinav Tripathi <genuinelucifer@gmail.com> |
---|---|
date | Fri, 12 Aug 2016 05:45:06 -0700 |
parents | a140160b2319 |
children | cee203ea6245 |
line wrap: on
line source
/* 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" #include "pytave_utils.h" using namespace boost::python; DEFUN_DLD (pyexec, args, nargout, "-*- texinfo -*-\n\ @deftypefn {} {} pyexec (@var{expr})\n\ @deftypefnx {} {} pyexec (@var{expr}, @var{localns})\n\ Execute a Python expression or block of code.\n\ \n\ When called with an optional second argument, @var{localns} is a\n\ @code{py.dict} that acts as the namespace for any assignments or other\n\ side effects of the expression.\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 || nargin > 2) { 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__"); object local_namespace; if (nargin > 1) { pytave::get_object_from_python (args(1), local_namespace); if (local_namespace.is_none ()) error ("pyexec: NAMESPACE must be a string or a Python reference"); } else local_namespace = main_namespace; 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, local_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") */