Mercurial > pytave
annotate pyexec.cc @ 394:b3e63c620448
ci: use a separate build directory
* bitbucket-pipelines.yml: Move Python 2 configure/build/test to a separate
directory.
| author | Mike Miller <mtmiller@octave.org> |
|---|---|
| date | Fri, 07 Apr 2017 10:37:56 -0700 |
| parents | 1470ed26917a |
| children | 3644df6564bc |
| rev | line source |
|---|---|
| 161 | 1 /* |
| 2 | |
| 3 Copyright (C) 2016 Colin B. Macdonald | |
| 4 | |
| 5 This file is part of Pytave. | |
| 6 | |
| 7 Pytave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 3 of the License, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 Pytave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with Pytave; see the file COPYING. If not, see | |
| 19 <http://www.gnu.org/licenses/>. | |
| 20 | |
| 21 */ | |
| 22 | |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include <config.h> |
| 161 | 25 #endif |
| 26 | |
| 27 #include <dlfcn.h> | |
| 28 #include <boost/python.hpp> | |
| 29 #include <boost/python/numeric.hpp> | |
| 30 | |
| 31 #include <oct.h> | |
| 32 | |
| 33 #define PYTAVE_DO_DECLARE_SYMBOL | |
| 34 #include "arrayobjectdefs.h" | |
| 35 #include "exceptions.h" | |
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36 #include "oct-py-eval.h" |
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37 #include "oct-py-util.h" |
| 161 | 38 #include "python_to_octave.h" |
| 39 | |
| 40 using namespace boost::python; | |
| 41 | |
| 42 DEFUN_DLD (pyexec, args, nargout, | |
| 43 "-*- texinfo -*-\n\ | |
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44 @deftypefn {} {} pyexec (@var{expr})\n\ |
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45 @deftypefnx {} {} pyexec (@var{expr}, @var{localns})\n\ |
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46 Execute a Python expression or block of code.\n\ |
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47 \n\ |
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48 When called with an optional second argument, @var{localns} is a\n\ |
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49 @code{py.dict} that acts as the namespace for any assignments or other\n\ |
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50 side effects of the expression.\n\ |
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51 \n\ |
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52 Examples:\n\ |
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53 @example\n\ |
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54 @group\n\ |
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55 pyexec (\"print(42)\")\n\ |
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56 @print{} 42\n\ |
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57 @end group\n\ |
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58 @end example\n\ |
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59 @seealso{pycall, pyeval}\n\ |
| 161 | 60 @end deftypefn") |
| 61 { | |
| 62 octave_value_list retval; | |
| 63 | |
| 64 int nargin = args.length (); | |
| 65 | |
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66 if (nargin < 1 || nargin > 2) |
| 161 | 67 { |
| 68 print_usage (); | |
| 69 return retval; | |
| 70 } | |
| 71 | |
| 72 std::string code = args(0).string_value (); | |
| 73 | |
| 74 Py_Initialize (); | |
| 75 | |
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76 PyObject *local_namespace = 0; |
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77 if (nargin > 1) |
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78 { |
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79 local_namespace = pytave::pyobject_unwrap_object (args(1)); |
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80 if (! local_namespace) |
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81 error ("pyexec: NAMESPACE must be a valid Python reference"); |
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82 } |
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83 |
| 161 | 84 try |
| 85 { | |
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86 // FIXME: figure out exec return code: |
| 161 | 87 // http://www.boost.org/doc/libs/1_38_0/libs/python/doc/v2/exec.html |
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88 pytave::py_exec_string (code, 0, local_namespace); |
| 161 | 89 } |
| 90 catch (pytave::object_convert_exception const &) | |
| 91 { | |
| 92 error ("pyexec: error in return value type conversion"); | |
| 93 } | |
| 94 catch (error_already_set const &) | |
| 95 { | |
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96 std::string message = pytave::fetch_exception_message (); |
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97 error ("pyexec: %s", message.c_str ()); |
| 161 | 98 } |
| 99 return retval; | |
| 100 } | |
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101 |
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102 /* |
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103 %!error <NameError> |
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104 %! pyexec ("raise NameError ('oops')") |
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105 |
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106 %!error <AttributeError> |
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107 %! pyexec ("import sys") |
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108 %! pyexec ("sys.no_such_thing") |
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109 */ |