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_app.h"
  42 #include "bpy_rna.h"
  43 #include "bpy_props.h"
  44 #include "bpy_operator.h"
  45 #include "bpy_util.h"
  46
  47 #ifndef WIN32
  48 #include <dirent.h>
  49 #else
  50 #include "BLI_winstuff.h"
  51 #endif
  52
  53 #include "DNA_space_types.h"
  54 #include "DNA_text_types.h"
  55
  56 #include "MEM_guardedalloc.h"
  57
  58 #include "BLI_path_util.h"
  59 #include "BLI_storage.h"
  60 #include "BLI_fileops.h"
  61 #include "BLI_string.h"
  62
  63 #include "BKE_context.h"
  64 #include "BKE_text.h"
  65 #include "BKE_context.h"
  66 #include "BKE_main.h"
  67
  68 #include "BPY_extern.h"
  69
  70 #include "BPy_Freestyle.h"
  71
  72 #include "../generic/bpy_internal_import.h" // our own imports
  73 /* external util modules */
  74
  75 #include "../generic/Mathutils.h"
  76 #include "../generic/Geometry.h"
  77 #include "../generic/BGL.h"
  78 #include "../generic/IDProp.h"
  79
  80 /* for internal use, when starting and ending python scripts */
  81
  82 /* incase a python script triggers another python call, stop bpy_context_clear from invalidating */
  83 static int py_call_level= 0;
  84
  85
  86 // only for tests
  87 #define TIME_PY_RUN
  88
  89 #ifdef TIME_PY_RUN
  90 #include "PIL_time.h"
  91 static int              bpy_timer_count = 0;
  92 static double   bpy_timer; /* time since python starts */
  93 static double   bpy_timer_run; /* time for each python script run */
  94 static double   bpy_timer_run_tot; /* accumulate python runs */
  95 #endif
  96
  97 void bpy_context_set(bContext *C, PyGILState_STATE *gilstate)
  98 {
  99         py_call_level++;
 100
 101         if(gilstate)
 102                 *gilstate = PyGILState_Ensure();
 103
 104         if(py_call_level==1) {
 105
 106                 if(C) { // XXX - should always be true.
 107                         BPy_SetContext(C);
 108                         bpy_import_main_set(CTX_data_main(C));
 109                 }
 110                 else {
 111                         fprintf(stderr, "ERROR: Python context called with a NULL Context. this should not happen!\n");
 112                 }
 113
 114                 BPY_update_modules(); /* can give really bad results if this isnt here */
 115
 116 #ifdef TIME_PY_RUN
 117                 if(bpy_timer_count==0) {
 118                         /* record time from the beginning */
 119                         bpy_timer= PIL_check_seconds_timer();
 120                         bpy_timer_run = bpy_timer_run_tot = 0.0;
 121                 }
 122                 bpy_timer_run= PIL_check_seconds_timer();
 123
 124
 125                 bpy_timer_count++;
 126 #endif
 127         }
 128 }
 129
 130 void bpy_context_clear(bContext *C, PyGILState_STATE *gilstate)
 131 {
 132         py_call_level--;
 133
 134         if(gilstate)
 135                 PyGILState_Release(*gilstate);
 136
 137         if(py_call_level < 0) {
 138                 fprintf(stderr, "ERROR: Python context internal state bug. this should not happen!\n");
 139         }
 140         else if(py_call_level==0) {
 141                 // XXX - Calling classes currently wont store the context :\, cant set NULL because of this. but this is very flakey still.
 142                 //BPy_SetContext(NULL);
 143                 //bpy_import_main_set(NULL);
 144
 145 #ifdef TIME_PY_RUN
 146                 bpy_timer_run_tot += PIL_check_seconds_timer() - bpy_timer_run;
 147                 bpy_timer_count++;
 148 #endif
 149
 150         }
 151 }
 152
 153 static void bpy_import_test(char *modname)
 154 {
 155         PyObject *mod= PyImport_ImportModuleLevel(modname, NULL, NULL, NULL, 0);
 156         if(mod) {
 157                 Py_DECREF(mod);
 158         }
 159         else {
 160                 PyErr_Print();
 161                 PyErr_Clear();
 162         }
 163 }
 164
 165 void BPY_free_compiled_text( struct Text *text )
 166 {
 167         if( text->compiled ) {
 168                 Py_DECREF( ( PyObject * ) text->compiled );
 169                 text->compiled = NULL;
 170         }
 171 }
 172
 173 /*****************************************************************************
 174 * Description: Creates the bpy module and adds it to sys.modules for importing
 175 *****************************************************************************/
 176 static BPy_StructRNA *bpy_context_module= NULL; /* for fast access */
 177 static void bpy_init_modules( void )
 178 {
 179         PyObject *mod;
 180
 181         /* Needs to be first since this dir is needed for future modules */
 182         char *modpath= BLI_gethome_folder("scripts/modules", BLI_GETHOME_ALL);
 183         if(modpath) {
 184                 PyObject *sys_path= PySys_GetObject("path"); /* borrow */
 185                 PyObject *py_modpath= PyUnicode_FromString(modpath);
 186                 PyList_Insert(sys_path, 0, py_modpath); /* add first */
 187                 Py_DECREF(py_modpath);
 188         }
 189
 190         /* stand alone utility modules not related to blender directly */
 191         Geometry_Init();
 192         Mathutils_Init();
 193         BGL_Init();
 194         IDProp_Init_Types();
 195         Freestyle_Init();
 196
 197
 198         mod = PyModule_New("_bpy");
 199
 200         /* add the module so we can import it */
 201         PyDict_SetItemString(PySys_GetObject("modules"), "_bpy", mod);
 202         Py_DECREF(mod);
 203
 204         /* run first, initializes rna types */
 205         BPY_rna_init();
 206
 207         PyModule_AddObject( mod, "types", BPY_rna_types() ); /* needs to be first so bpy_types can run */
 208         bpy_import_test("bpy_types");
 209         PyModule_AddObject( mod, "data", BPY_rna_module() ); /* imports bpy_types by running this */
 210         bpy_import_test("bpy_types");
 211         /* PyModule_AddObject( mod, "doc", BPY_rna_doc() ); */
 212         PyModule_AddObject( mod, "props", BPY_rna_props() );
 213         PyModule_AddObject( mod, "ops", BPY_operator_module() ); /* ops is now a python module that does the conversion from SOME_OT_foo -> some.foo */
 214         PyModule_AddObject( mod, "app", BPY_app_struct() );
 215
 216         /* bpy context */
 217         {
 218                 bpy_context_module= ( BPy_StructRNA * ) PyObject_NEW( BPy_StructRNA, &pyrna_struct_Type );
 219
 220                 RNA_pointer_create(NULL, &RNA_Context, NULL, &bpy_context_module->ptr);
 221                 bpy_context_module->freeptr= 0;
 222
 223                 PyModule_AddObject(mod, "context", (PyObject *)bpy_context_module);
 224         }
 225
 226         /* add our own modules dir, this is a python package */
 227         bpy_import_test("bpy");
 228 }
 229
 230 void BPY_update_modules( void )
 231 {
 232 #if 0 // slow, this runs all the time poll, draw etc 100's of time a sec.
 233         PyObject *mod= PyImport_ImportModuleLevel("bpy", NULL, NULL, NULL, 0);
 234         PyModule_AddObject( mod, "data", BPY_rna_module() );
 235         PyModule_AddObject( mod, "types", BPY_rna_types() ); // atm this does not need updating
 236 #endif
 237
 238         /* refreshes the main struct */
 239         BPY_update_rna_module();
 240         bpy_context_module->ptr.data= (void *)BPy_GetContext();
 241 }
 242
 243 /*****************************************************************************
 244 * Description: This function creates a new Python dictionary object.
 245 *****************************************************************************/
 246 static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
 247 {
 248         PyObject *mod;
 249         PyObject *item;
 250         PyObject *dict = PyDict_New(  );
 251         PyDict_SetItemString( dict, "__builtins__", PyEval_GetBuiltins(  ) );
 252
 253         item = PyUnicode_FromString( "__main__" );
 254         PyDict_SetItemString( dict, "__name__", item );
 255         Py_DECREF(item);
 256
 257         /* __file__ only for nice UI'ness */
 258         if(filename) {
 259                 PyObject *item = PyUnicode_FromString( filename );
 260                 PyDict_SetItemString( dict, "__file__", item );
 261                 Py_DECREF(item);
 262         }
 263
 264         /* add bpy to global namespace */
 265         mod= PyImport_ImportModuleLevel("bpy", NULL, NULL, NULL, 0);
 266         PyDict_SetItemString( dict, "bpy", mod );
 267         Py_DECREF(mod);
 268
 269         return dict;
 270 }
 271
 272 /* must be called before Py_Initialize */
 273 void BPY_start_python_path(void)
 274 {
 275         char *py_path_bundle= BLI_gethome_folder("python", BLI_GETHOME_ALL);
 276
 277         if(py_path_bundle==NULL)
 278                 return;
 279
 280         /* set the environment path */
 281         printf("found bundled python: %s\n", py_path_bundle);
 282
 283 #ifdef __APPLE__
 284         /* OSX allow file/directory names to contain : character (represented as / in the Finder)
 285          but current Python lib (release 3.1.1) doesn't handle these correctly */
 286         if(strchr(py_path_bundle, ':'))
 287                 printf("Warning : Blender application is located in a path containing : or / chars\
 288                            \nThis may make python import function fail\n");
 289 #endif
 290
 291 #ifdef _WIN32
 292         /* cmake/MSVC debug build crashes without this, why only
 293            in this case is unknown.. */
 294         {
 295                 char *envpath = getenv("PYTHONPATH");
 296
 297                 if(envpath && envpath[0]) {
 298                         char *newenvpath = BLI_sprintfN("%s;%s", py_path_bundle, envpath);
 299                         BLI_setenv("PYTHONPATH", newenvpath);
 300                         MEM_freeN(newenvpath);
 301                 }
 302                 else
 303                         BLI_setenv("PYTHONPATH", py_path_bundle);
 304         }
 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= MEM_mallocN(strlen(fn) + 32, "pystring");
 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                         MEM_freeN(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 {
 783                 printf("Context '%s' found\n", member);
 784         }
 785
 786         return done;
 787 }