- fix for crash if drivers were used in the .B.blend
[blender.git] / source / blender / python / intern / bpy_interface.c
1 /**
2  * $Id:
3  *
4  * ***** BEGIN GPL LICENSE BLOCK *****
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software Foundation,
18  * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19  *
20  * Contributor(s): Michel Selten, Willian P. Germano, Stephen Swaney,
21  * Chris Keith, Chris Want, Ken Hughes, Campbell Barton
22  *
23  * ***** END GPL LICENSE BLOCK *****
24  */
25  
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <sys/stat.h>
30
31
32 /* grr, python redefines */
33 #ifdef _POSIX_C_SOURCE
34 #undef _POSIX_C_SOURCE
35 #endif
36
37 #include <Python.h>
38 #include "compile.h"            /* for the PyCodeObject */
39 #include "eval.h"               /* for PyEval_EvalCode */
40
41 #include "bpy_rna.h"
42 #include "bpy_operator.h"
43 #include "bpy_ui.h"
44 #include "bpy_util.h"
45
46 #ifndef WIN32
47 #include <dirent.h>
48 #else
49 #include "BLI_winstuff.h"
50 #endif
51
52 #include "DNA_space_types.h"
53 #include "DNA_text_types.h"
54
55 #include "MEM_guardedalloc.h"
56
57 #include "BLI_path_util.h"
58 #include "BLI_storage.h"
59 #include "BLI_fileops.h"
60 #include "BLI_string.h"
61
62 #include "BKE_blender.h"
63 #include "BKE_context.h"
64 #include "BKE_text.h"
65 #include "BKE_context.h"
66 #include "BKE_global.h"
67 #include "BKE_main.h"
68
69 #include "BPY_extern.h"
70
71 #include "../generic/bpy_internal_import.h" // our own imports
72 /* external util modules */
73
74 #include "../generic/Mathutils.h"
75 #include "../generic/Geometry.h"
76 #include "../generic/BGL.h"
77 #include "../generic/IDProp.h"
78
79 /* for internal use, when starting and ending python scripts */
80
81 /* incase a python script triggers another python call, stop bpy_context_clear from invalidating */
82 static int py_call_level= 0;
83
84
85 // only for tests
86 #define TIME_PY_RUN
87
88 #ifdef TIME_PY_RUN
89 #include "PIL_time.h"
90 static int              bpy_timer_count = 0;
91 static double   bpy_timer; /* time since python starts */
92 static double   bpy_timer_run; /* time for each python script run */
93 static double   bpy_timer_run_tot; /* accumulate python runs */
94 #endif
95
96 void bpy_context_set(bContext *C, PyGILState_STATE *gilstate)
97 {
98         py_call_level++;
99
100         if(gilstate)
101                 *gilstate = PyGILState_Ensure();
102
103         if(py_call_level==1) {
104
105                 if(C) { // XXX - should always be true.
106                         BPy_SetContext(C);
107                         bpy_import_main_set(CTX_data_main(C));
108                 }
109                 else {
110                         fprintf(stderr, "ERROR: Python context called with a NULL Context. this should not happen!\n");
111                 }
112
113                 BPY_update_modules(); /* can give really bad results if this isnt here */
114
115 #ifdef TIME_PY_RUN
116                 if(bpy_timer_count==0) {
117                         /* record time from the beginning */
118                         bpy_timer= PIL_check_seconds_timer();
119                         bpy_timer_run = bpy_timer_run_tot = 0.0;
120                 }
121                 bpy_timer_run= PIL_check_seconds_timer();
122
123
124                 bpy_timer_count++;
125 #endif
126         }
127 }
128
129 void bpy_context_clear(bContext *C, PyGILState_STATE *gilstate)
130 {
131         py_call_level--;
132
133         if(gilstate)
134                 PyGILState_Release(*gilstate);
135
136         if(py_call_level < 0) {
137                 fprintf(stderr, "ERROR: Python context internal state bug. this should not happen!\n");
138         }
139         else if(py_call_level==0) {
140                 // XXX - Calling classes currently wont store the context :\, cant set NULL because of this. but this is very flakey still.
141                 //BPy_SetContext(NULL);
142                 //bpy_import_main_set(NULL);
143
144 #ifdef TIME_PY_RUN
145                 bpy_timer_run_tot += PIL_check_seconds_timer() - bpy_timer_run;
146                 bpy_timer_count++;
147 #endif
148
149         }
150 }
151
152 static void bpy_import_test(char *modname)
153 {
154         PyObject *mod= PyImport_ImportModuleLevel(modname, NULL, NULL, NULL, 0);
155         if(mod) {
156                 Py_DECREF(mod);
157         }
158         else {
159                 PyErr_Print();
160                 PyErr_Clear();
161         }       
162 }
163
164 void BPY_free_compiled_text( struct Text *text )
165 {
166         if( text->compiled ) {
167                 Py_DECREF( ( PyObject * ) text->compiled );
168                 text->compiled = NULL;
169         }
170 }
171
172 /*****************************************************************************
173 * Description: Creates the bpy module and adds it to sys.modules for importing
174 *****************************************************************************/
175 static BPy_StructRNA *bpy_context_module= NULL; /* for fast access */
176 static void bpy_init_modules( void )
177 {
178         PyObject *mod;
179
180         /* Needs to be first since this dir is needed for future modules */
181         char *modpath= BLI_gethome_folder("scripts/modules", BLI_GETHOME_ALL);
182         if(modpath) {
183                 PyObject *sys_path= PySys_GetObject("path"); /* borrow */
184                 PyObject *py_modpath= PyUnicode_FromString(modpath);
185                 PyList_Insert(sys_path, 0, py_modpath); /* add first */
186                 Py_DECREF(py_modpath);
187         }
188         
189         /* stand alone utility modules not related to blender directly */
190         Geometry_Init();
191         Mathutils_Init();
192         BGL_Init();
193         IDProp_Init_Types();
194
195
196         mod = PyModule_New("_bpy");
197
198         /* add the module so we can import it */
199         PyDict_SetItemString(PySys_GetObject("modules"), "_bpy", mod);
200         Py_DECREF(mod);
201
202         /* run first, initializes rna types */
203         BPY_rna_init();
204
205         PyModule_AddObject( mod, "types", BPY_rna_types() ); /* needs to be first so bpy_types can run */
206         bpy_import_test("bpy_types");
207         PyModule_AddObject( mod, "data", BPY_rna_module() ); /* imports bpy_types by running this */
208         bpy_import_test("bpy_types");
209         /* PyModule_AddObject( mod, "doc", BPY_rna_doc() ); */
210         PyModule_AddObject( mod, "props", BPY_rna_props() );
211         PyModule_AddObject( mod, "ops", BPY_operator_module() ); /* ops is now a python module that does the conversion from SOME_OT_foo -> some.foo */
212         PyModule_AddObject( mod, "ui", BPY_ui_module() ); // XXX very experimental, consider this a test, especially PyCObject is not meant to be permanent
213
214
215
216         /* bpy context */
217         {
218                 bpy_context_module= ( BPy_StructRNA * ) PyObject_NEW( BPy_StructRNA, &pyrna_struct_Type );
219                 RNA_pointer_create(NULL, &RNA_Context, NULL, &bpy_context_module->ptr);
220
221                 PyModule_AddObject(mod, "context", (PyObject *)bpy_context_module);
222         }
223
224         /* blender info that wont change at runtime, add into _bpy */
225         {
226                 extern char bprogname[]; /* argv[0] from creator.c */
227
228                 PyObject *mod_dict= PyModule_GetDict(mod);
229                 char tmpstr[256];
230                 PyModule_AddStringConstant(mod, "_HOME",  BLI_gethome());
231                 PyDict_SetItemString(mod_dict, "_VERSION", Py_BuildValue("(iii)", BLENDER_VERSION/100, BLENDER_VERSION%100, BLENDER_SUBVERSION));
232                 sprintf(tmpstr, "%d.%02d (sub %d)", BLENDER_VERSION/100, BLENDER_VERSION%100, BLENDER_SUBVERSION);
233                 PyModule_AddStringConstant(mod, "_VERSION_STR",  tmpstr);
234                 PyModule_AddStringConstant(mod, "_BINPATH",  bprogname);
235         }
236
237         /* add our own modules dir, this is a python package */
238         bpy_import_test("bpy");
239 }
240
241 void BPY_update_modules( void )
242 {
243 #if 0 // slow, this runs all the time poll, draw etc 100's of time a sec.
244         PyObject *mod= PyImport_ImportModuleLevel("bpy", NULL, NULL, NULL, 0);
245         PyModule_AddObject( mod, "data", BPY_rna_module() );
246         PyModule_AddObject( mod, "types", BPY_rna_types() ); // atm this does not need updating
247 #endif
248
249         /* refreshes the main struct */
250         BPY_update_rna_module();
251         bpy_context_module->ptr.data= (void *)BPy_GetContext();
252 }
253
254 /*****************************************************************************
255 * Description: This function creates a new Python dictionary object.
256 *****************************************************************************/
257 static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
258 {
259         PyObject *mod;
260         PyObject *item;
261         PyObject *dict = PyDict_New(  );
262         PyDict_SetItemString( dict, "__builtins__", PyEval_GetBuiltins(  ) );
263
264         item = PyUnicode_FromString( "__main__" );
265         PyDict_SetItemString( dict, "__name__", item );
266         Py_DECREF(item);
267         
268         /* __file__ only for nice UI'ness */
269         if(filename) {
270                 PyObject *item = PyUnicode_FromString( filename );
271                 PyDict_SetItemString( dict, "__file__", item );
272                 Py_DECREF(item);
273         }
274
275         /* add bpy to global namespace */
276         mod= PyImport_ImportModuleLevel("bpy", NULL, NULL, NULL, 0);
277         PyDict_SetItemString( dict, "bpy", mod );
278         Py_DECREF(mod);
279         
280         return dict;
281 }
282
283 /* must be called before Py_Initialize */
284 void BPY_start_python_path(void)
285 {
286         char *py_path_bundle= BLI_gethome_folder("python", BLI_GETHOME_ALL);
287
288         if(py_path_bundle==NULL)
289                 return;
290
291         /* set the environment path */
292         printf("found bundled python: %s\n", py_path_bundle);
293
294 #ifdef __APPLE__
295         /* OSX allow file/directory names to contain : character (represented as / in the Finder)
296          but current Python lib (release 3.1.1) doesn't handle these correctly */
297         if(strchr(py_path_bundle, ':'))
298                 printf("Warning : Blender application is located in a path containing : or / chars\
299                            \nThis may make python import function fail\n");
300 #endif
301         
302 #if 0
303         BLI_setenv("PYTHONHOME", py_path_bundle);
304         BLI_setenv("PYTHONPATH", py_path_bundle);
305 #endif
306
307         {
308                 static wchar_t py_path_bundle_wchar[FILE_MAXDIR];
309
310                 mbstowcs(py_path_bundle_wchar, py_path_bundle, FILE_MAXDIR);
311                 Py_SetPythonHome(py_path_bundle_wchar);
312         }
313 }
314
315
316
317 void BPY_set_context(bContext *C)
318 {
319         BPy_SetContext(C);
320 }
321
322 /* call BPY_set_context first */
323 void BPY_start_python( int argc, char **argv )
324 {
325         PyThreadState *py_tstate = NULL;
326         
327         BPY_start_python_path(); /* allow to use our own included python */
328
329         Py_Initialize(  );
330         
331         // PySys_SetArgv( argc, argv); // broken in py3, not a huge deal
332         /* sigh, why do python guys not have a char** version anymore? :( */
333         {
334                 int i;
335 #if 0
336                 PyObject *py_argv= PyList_New(argc);
337                 for (i=0; i<argc; i++)
338                         PyList_SET_ITEM(py_argv, i, PyUnicode_FromString(argv[i]));
339
340 #else   // should fix bug #20021 - utf path name problems
341                 PyObject *py_argv= PyList_New(0);
342                 for (i=0; i<argc; i++) {
343                         PyObject *item= PyUnicode_Decode(argv[i], strlen(argv[i]), Py_FileSystemDefaultEncoding, NULL);
344                         if(item==NULL) { // should never happen
345                                 PyErr_Print();
346                                 PyErr_Clear();
347                         }
348                         else {
349                                 PyList_Append(py_argv, item);
350                                 Py_DECREF(item);
351                         }
352                 }
353 #endif
354                 PySys_SetObject("argv", py_argv);
355                 Py_DECREF(py_argv);
356         }
357         
358         /* Initialize thread support (also acquires lock) */
359         PyEval_InitThreads();
360         
361         
362         /* bpy.* and lets us import it */
363         bpy_init_modules(); 
364
365         { /* our own import and reload functions */
366                 PyObject *item;
367                 //PyObject *m = PyImport_AddModule("__builtin__");
368                 //PyObject *d = PyModule_GetDict(m);
369                 PyObject *d = PyEval_GetBuiltins(  );
370                 PyDict_SetItemString(d, "reload",               item=PyCFunction_New(bpy_reload_meth, NULL));   Py_DECREF(item);
371                 PyDict_SetItemString(d, "__import__",   item=PyCFunction_New(bpy_import_meth, NULL));   Py_DECREF(item);
372         }
373         
374         pyrna_alloc_types();
375
376         py_tstate = PyGILState_GetThisThreadState();
377         PyEval_ReleaseThread(py_tstate);
378 }
379
380 void BPY_end_python( void )
381 {
382         // fprintf(stderr, "Ending Python!\n");
383
384         PyGILState_Ensure(); /* finalizing, no need to grab the state */
385         
386         // free other python data.
387         pyrna_free_types();
388
389         /* clear all python data from structs */
390         
391         Py_Finalize(  );
392         
393 #ifdef TIME_PY_RUN
394         // measure time since py started
395         bpy_timer = PIL_check_seconds_timer() - bpy_timer;
396
397         printf("*bpy stats* - ");
398         printf("tot exec: %d,  ", bpy_timer_count);
399         printf("tot run: %.4fsec,  ", bpy_timer_run_tot);
400         if(bpy_timer_count>0)
401                 printf("average run: %.6fsec,  ", (bpy_timer_run_tot/bpy_timer_count));
402
403         if(bpy_timer>0.0)
404                 printf("tot usage %.4f%%", (bpy_timer_run_tot/bpy_timer)*100.0);
405
406         printf("\n");
407
408         // fprintf(stderr, "Ending Python Done!\n");
409
410 #endif
411
412 }
413
414 /* Can run a file or text block */
415 int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struct ReportList *reports)
416 {
417         PyObject *py_dict, *py_result= NULL;
418         PyGILState_STATE gilstate;
419         
420         if (fn==NULL && text==NULL) {
421                 return 0;
422         }
423         
424         bpy_context_set(C, &gilstate);
425         
426         py_dict = CreateGlobalDictionary(C, text?text->id.name+2:fn);
427
428         if (text) {
429                 
430                 if( !text->compiled ) { /* if it wasn't already compiled, do it now */
431                         char *buf = txt_to_buf( text );
432
433                         text->compiled =
434                                 Py_CompileString( buf, text->id.name+2, Py_file_input );
435
436                         MEM_freeN( buf );
437
438                         if( PyErr_Occurred(  ) ) {
439                                 BPY_free_compiled_text( text );
440                         }
441                 }
442                 if(text->compiled)
443                         py_result =  PyEval_EvalCode( text->compiled, py_dict, py_dict );
444                 
445         } else {
446                 FILE *fp= fopen(fn, "r");               
447                 if(fp) {
448 #ifdef _WIN32
449                         /* Previously we used PyRun_File to run directly the code on a FILE 
450                          * object, but as written in the Python/C API Ref Manual, chapter 2,
451                          * 'FILE structs for different C libraries can be different and 
452                          * incompatible'.
453                          * So now we load the script file data to a buffer */
454                         char *pystring;
455
456                         fclose(fp);
457
458                         pystring= malloc(strlen(fn) + 32);
459                         pystring[0]= '\0';
460                         sprintf(pystring, "exec(open(r'%s').read())", fn);
461                         py_result = PyRun_String( pystring, Py_file_input, py_dict, py_dict );
462                         free(pystring);
463 #else
464                         py_result = PyRun_File(fp, fn, Py_file_input, py_dict, py_dict);
465                         fclose(fp);
466 #endif
467                 }
468                 else {
469                         PyErr_Format(PyExc_SystemError, "Python file \"%s\" could not be opened: %s", fn, strerror(errno));
470                         py_result= NULL;
471                 }
472         }
473         
474         if (!py_result) {
475                 BPy_errors_to_report(reports);
476         } else {
477                 Py_DECREF( py_result );
478         }
479         
480         Py_DECREF(py_dict);
481         
482         bpy_context_clear(C, &gilstate);
483
484         return py_result ? 1:0;
485 }
486
487
488 /* TODO - move into bpy_space.c ? */
489 /* GUI interface routines */
490
491 /* Copied from Draw.c */
492 static void exit_pydraw( SpaceScript * sc, short err )
493 {
494         Script *script = NULL;
495
496         if( !sc || !sc->script )
497                 return;
498
499         script = sc->script;
500
501         if( err ) {
502                 BPy_errors_to_report(NULL); // TODO, reports
503                 script->flags = 0;      /* mark script struct for deletion */
504                 SCRIPT_SET_NULL(script);
505                 script->scriptname[0] = '\0';
506                 script->scriptarg[0] = '\0';
507 // XXX 2.5              error_pyscript();
508 // XXX 2.5              scrarea_queue_redraw( sc->area );
509         }
510
511 #if 0 // XXX 2.5
512         BPy_Set_DrawButtonsList(sc->but_refs);
513         BPy_Free_DrawButtonsList(); /*clear all temp button references*/
514 #endif
515
516         sc->but_refs = NULL;
517         
518         Py_XDECREF( ( PyObject * ) script->py_draw );
519         Py_XDECREF( ( PyObject * ) script->py_event );
520         Py_XDECREF( ( PyObject * ) script->py_button );
521
522         script->py_draw = script->py_event = script->py_button = NULL;
523 }
524
525 static int bpy_run_script_init(bContext *C, SpaceScript * sc)
526 {
527         if (sc->script==NULL) 
528                 return 0;
529         
530         if (sc->script->py_draw==NULL && sc->script->scriptname[0] != '\0')
531                 BPY_run_python_script(C, sc->script->scriptname, NULL, NULL);
532                 
533         if (sc->script->py_draw==NULL)
534                 return 0;
535         
536         return 1;
537 }
538
539 int BPY_run_script_space_draw(const struct bContext *C, SpaceScript * sc)
540 {
541         if (bpy_run_script_init( (bContext *)C, sc)) {
542                 PyGILState_STATE gilstate = PyGILState_Ensure();
543                 PyObject *result = PyObject_CallObject( sc->script->py_draw, NULL );
544                 
545                 if (result==NULL)
546                         exit_pydraw(sc, 1);
547                         
548                 PyGILState_Release(gilstate);
549         }
550         return 1;
551 }
552
553 // XXX - not used yet, listeners dont get a context
554 int BPY_run_script_space_listener(bContext *C, SpaceScript * sc)
555 {
556         if (bpy_run_script_init(C, sc)) {
557                 PyGILState_STATE gilstate = PyGILState_Ensure();
558                 
559                 PyObject *result = PyObject_CallObject( sc->script->py_draw, NULL );
560                 
561                 if (result==NULL)
562                         exit_pydraw(sc, 1);
563                         
564                 PyGILState_Release(gilstate);
565         }
566         return 1;
567 }
568
569 void BPY_DECREF(void *pyob_ptr)
570 {
571         PyGILState_STATE gilstate = PyGILState_Ensure();
572         Py_DECREF((PyObject *)pyob_ptr);
573         PyGILState_Release(gilstate);
574 }
575
576 #if 0
577 /* called from the the scripts window, assume context is ok */
578 int BPY_run_python_script_space(const char *modulename, const char *func)
579 {
580         PyObject *py_dict, *py_result= NULL;
581         char pystring[512];
582         PyGILState_STATE gilstate;
583         
584         /* for calling the module function */
585         PyObject *py_func, 
586         
587         gilstate = PyGILState_Ensure();
588         
589         py_dict = CreateGlobalDictionary(C);
590         
591         PyObject *module = PyImport_ImportModule(scpt->script.filename);
592         if (module==NULL) {
593                 PyErr_SetFormat(PyExc_SystemError, "could not import '%s'", scpt->script.filename);
594         }
595         else {
596                 py_func = PyObject_GetAttrString(modulename, func);
597                 if (py_func==NULL) {
598                         PyErr_SetFormat(PyExc_SystemError, "module has no function '%s.%s'\n", scpt->script.filename, func);
599                 }
600                 else {
601                         Py_DECREF(py_func);
602                         if (!PyCallable_Check(py_func)) {
603                                 PyErr_SetFormat(PyExc_SystemError, "module item is not callable '%s.%s'\n", scpt->script.filename, func);
604                         }
605                         else {
606                                 py_result= PyObject_CallObject(py_func, NULL); // XXX will need args eventually
607                         }
608                 }
609         }
610         
611         if (!py_result) {
612                 BPy_errors_to_report(NULL); // TODO - reports
613         } else
614                 Py_DECREF( py_result );
615         
616         Py_XDECREF(module);
617         
618         Py_DECREF(py_dict);
619         
620         PyGILState_Release(gilstate);
621         return 1;
622 }
623 #endif
624
625 // #define TIME_REGISTRATION
626
627 #ifdef TIME_REGISTRATION
628 #include "PIL_time.h"
629 #endif
630
631
632 int BPY_button_eval(bContext *C, char *expr, double *value)
633 {
634         PyGILState_STATE gilstate;
635         PyObject *dict, *mod, *retval;
636         int error_ret = 0;
637         
638         if (!value || !expr || expr[0]=='\0') return -1;
639         
640         bpy_context_set(C, &gilstate);
641         
642         dict= CreateGlobalDictionary(C, NULL);
643         
644         /* import some modules: builtins,math*/
645         PyDict_SetItemString(dict, "__builtins__", PyEval_GetBuiltins());
646
647         mod = PyImport_ImportModule("math");
648         if (mod) {
649                 PyDict_Merge(dict, PyModule_GetDict(mod), 0); /* 0 - dont overwrite existing values */
650                 
651                 /* Only keep for backwards compat! - just import all math into root, they are standard */
652                 PyDict_SetItemString(dict, "math", mod);
653                 PyDict_SetItemString(dict, "m", mod);
654                 Py_DECREF(mod);
655         } 
656         
657         retval = PyRun_String(expr, Py_eval_input, dict, dict);
658         
659         if (retval == NULL) {
660                 error_ret= -1;
661         }
662         else {
663                 double val;
664
665                 if(PyTuple_Check(retval)) {
666                         /* Users my have typed in 10km, 2m
667                          * add up all values */
668                         int i;
669                         val= 0.0;
670
671                         for(i=0; i<PyTuple_GET_SIZE(retval); i++) {
672                                 val+= PyFloat_AsDouble(PyTuple_GET_ITEM(retval, i));
673                         }
674                 }
675                 else {
676                         val = PyFloat_AsDouble(retval);
677                 }
678                 Py_DECREF(retval);
679                 
680                 if(val==-1 && PyErr_Occurred()) {
681                         error_ret= -1;
682                 }
683                 else {
684                         *value= val;
685                 }
686         }
687         
688         if(error_ret) {
689                 BPy_errors_to_report(CTX_wm_reports(C));
690         }
691         
692         Py_DECREF(dict);
693         bpy_context_clear(C, &gilstate);
694         
695         return error_ret;
696 }
697
698 void BPY_load_user_modules(bContext *C)
699 {
700         PyGILState_STATE gilstate;
701         Main *bmain= CTX_data_main(C);
702         Text *text;
703
704         /* can happen on file load */
705         if(bmain==NULL)
706                 return;
707
708         bpy_context_set(C, &gilstate);
709
710         for(text=CTX_data_main(C)->text.first; text; text= text->id.next) {
711                 if(text->flags & TXT_ISSCRIPT && BLI_testextensie(text->id.name+2, ".py")) {
712                         PyObject *module= bpy_text_import(text);
713
714                         if (module==NULL) {
715                                 PyErr_Print();
716                                 PyErr_Clear();
717                         }
718                         else {
719                                 Py_DECREF(module);
720                         }
721                 }
722         }
723         bpy_context_clear(C, &gilstate);
724 }
725
726 int BPY_context_get(bContext *C, const char *member, bContextDataResult *result)
727 {
728         PyObject *pyctx= (PyObject *)CTX_py_dict_get(C);
729         PyObject *item= PyDict_GetItemString(pyctx, member);
730         PointerRNA *ptr= NULL;
731         int done= 0;
732
733         if(item==NULL) {
734                 /* pass */
735         }
736         else if(item==Py_None) {
737                 /* pass */
738         }
739         else if(BPy_StructRNA_Check(item)) {
740                 ptr= &(((BPy_StructRNA *)item)->ptr);
741
742                 //result->ptr= ((BPy_StructRNA *)item)->ptr;
743                 CTX_data_pointer_set(result, ptr->id.data, ptr->type, ptr->data);
744                 done= 1;
745         }
746         else if (PySequence_Check(item)) {
747                 PyObject *seq_fast= PySequence_Fast(item, "bpy_context_get sequence conversion");
748                 if (seq_fast==NULL) {
749                         PyErr_Print();
750                         PyErr_Clear();
751                 }
752                 else {
753                         int len= PySequence_Fast_GET_SIZE(seq_fast);
754                         int i;
755                         for(i = 0; i < len; i++) {
756                                 PyObject *list_item= PySequence_Fast_GET_ITEM(seq_fast, i);
757
758                                 if(BPy_StructRNA_Check(list_item)) {
759                                         /*
760                                         CollectionPointerLink *link= MEM_callocN(sizeof(CollectionPointerLink), "bpy_context_get");
761                                         link->ptr= ((BPy_StructRNA *)item)->ptr;
762                                         BLI_addtail(&result->list, link);
763                                         */
764                                         ptr= &(((BPy_StructRNA *)list_item)->ptr);
765                                         CTX_data_list_add(result, ptr->id.data, ptr->type, ptr->data);
766                                 }
767                                 else {
768                                         printf("List item not a valid type\n");
769                                 }
770
771                         }
772                         Py_DECREF(seq_fast);
773
774                         done= 1;
775                 }
776         }
777
778         if(done==0) {
779                 if (item)       printf("Context '%s' not a valid type\n", member);
780                 else            printf("Context '%s' not found\n", member);
781         }
782         else if (G.f & G_DEBUG) {
783                 printf("Context '%s' found\n", member);
784         }
785
786         return done;
787 }
788