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bugfix [#23129] alt-p in the texteditor doesn't work anymore

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recent commit cleared the __main__ namespace once a script finished which meant classes defined there would loose their namespace.
now inset a new __main__ module into sys.modules for every script that runs, any classes that are registered will hold a reference to that modules namespace.
This commit is contained in:
Campbell Barton
2010-08-01 13:57:04 +00:00
parent f3cca3e192
commit e33d7d37c9
1 changed files with 29 additions and 65 deletions
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94
source/blender/python/intern/bpy_interface.c
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@@ -148,49 +148,23 @@ void BPY_update_modules( void )
/*****************************************************************************
* Description: This function creates a new Python dictionary object.
* note: dict is owned by sys.modules["__main__"] module, reference is borrowed
* note: important we use the dict from __main__, this is what python expects
for 'pickle' to work as well as strings like this...
>> foo = 10
>> print(__import__("__main__").foo)
*****************************************************************************/
static PyObject *CreateGlobalDictionary(bContext *C, const char *filename, PyObject *main_ns_orig)
static PyObject *CreateGlobalDictionary(bContext *C, const char *filename)
{
PyObject *item;
PyObject *dict;
PyInterpreterState *interp= PyThreadState_GET()->interp;
PyObject *mod_main= PyModule_New("__main__");
PyDict_SetItemString(interp->modules, "__main__", mod_main);
PyModule_AddObject(mod_main, "__builtins__", interp->builtins);
PyModule_AddStringConstant(mod_main, "__name__", "__main__");
PyModule_AddStringConstant(mod_main, "__file__", filename); /* __file__ only for nice UI'ness */
/* important we use the dict from __main__, this is what python expects
* for 'pickle' to work as well as strings like this...
>> foo = 10
>> print(__import__("__main__").foo)
*/
dict= PyModule_GetDict(PyImport_AddModule("__main__"));
PyDict_Merge(main_ns_orig, dict, 1);
PyDict_Clear(dict);
Py_INCREF(dict);
/* using builtins rather then PyEval_GetBuiltins()
* print's many less items when printing, the modules __dict__
* this is how python works so better follow. */
PyDict_SetItemString(dict, "__builtins__", PyImport_AddModule("builtins"));
item = PyUnicode_FromString( "__main__" );
PyDict_SetItemString( dict, "__name__", item );
Py_DECREF(item);
/* __file__ only for nice UI'ness */
if(filename) {
PyObject *item = PyUnicode_FromString( filename );
PyDict_SetItemString( dict, "__file__", item );
Py_DECREF(item);
}
return dict;
}
static void CreateGlobalDictionary_Restore(PyObject *main_ns_orig)
{
PyObject *main_ns= PyModule_GetDict(PyImport_AddModule("__main__"));
PyDict_Clear(main_ns);
PyDict_Merge(main_ns, main_ns_orig, 1);
return PyModule_GetDict(mod_main);
}
/* must be called before Py_Initialize */
@@ -346,7 +320,6 @@ void BPY_end_python( void )
int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struct ReportList *reports)
{
PyObject *py_dict, *py_result= NULL;
PyObject *main_ns_orig= PyDict_New();
PyGILState_STATE gilstate;
if (fn==NULL && text==NULL) {
@@ -358,7 +331,7 @@ int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struc
if (text) {
char fn_dummy[FILE_MAXDIR];
bpy_text_filename_get(fn_dummy, text);
py_dict = CreateGlobalDictionary(C, fn_dummy, main_ns_orig);
py_dict = CreateGlobalDictionary(C, fn_dummy);
if( !text->compiled ) { /* if it wasn't already compiled, do it now */
char *buf = txt_to_buf( text );
@@ -379,7 +352,7 @@ int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struc
else {
FILE *fp= fopen(fn, "r");
py_dict = CreateGlobalDictionary(C, fn, main_ns_orig);
py_dict = CreateGlobalDictionary(C, fn);
if(fp) {
#ifdef _WIN32
@@ -413,11 +386,8 @@ int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struc
} else {
Py_DECREF( py_result );
}
CreateGlobalDictionary_Restore(main_ns_orig);
Py_DECREF(main_ns_orig);
Py_DECREF(py_dict);
PyDict_SetItemString(PyThreadState_GET()->interp->modules, "__main__", Py_None);
bpy_context_clear(C, &gilstate);
@@ -555,7 +525,7 @@ int BPY_run_python_script_space(const char *modulename, const char *func)
Py_XDECREF(module);
Py_DECREF(py_dict);
PyDict_SetItemString(PyThreadState_GET()->interp->modules, "__main__", Py_None);
PyGILState_Release(gilstate);
return 1;
@@ -566,8 +536,7 @@ int BPY_run_python_script_space(const char *modulename, const char *func)
int BPY_eval_button(bContext *C, const char *expr, double *value)
{
PyGILState_STATE gilstate;
PyObject *dict, *mod, *retval;
PyObject *main_ns_orig= PyDict_New();
PyObject *py_dict, *mod, *retval;
int error_ret = 0;
if (!value || !expr) return -1;
@@ -579,11 +548,11 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
bpy_context_set(C, &gilstate);
dict= CreateGlobalDictionary(C, NULL, main_ns_orig);
py_dict= CreateGlobalDictionary(C, "<blender button>");
mod = PyImport_ImportModule("math");
if (mod) {
PyDict_Merge(dict, PyModule_GetDict(mod), 0); /* 0 - dont overwrite existing values */
PyDict_Merge(py_dict, PyModule_GetDict(mod), 0); /* 0 - dont overwrite existing values */
Py_DECREF(mod);
}
else { /* highly unlikely but possibly */
@@ -591,7 +560,7 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
PyErr_Clear();
}
retval = PyRun_String(expr, Py_eval_input, dict, dict);
retval = PyRun_String(expr, Py_eval_input, py_dict, py_dict);
if (retval == NULL) {
error_ret= -1;
@@ -628,11 +597,9 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
if(error_ret) {
BPy_errors_to_report(CTX_wm_reports(C));
}
CreateGlobalDictionary_Restore(main_ns_orig);
Py_DECREF(main_ns_orig);
Py_DECREF(dict);
PyDict_SetItemString(PyThreadState_GET()->interp->modules, "__main__", Py_None);
bpy_context_clear(C, &gilstate);
return error_ret;
@@ -641,8 +608,7 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
int BPY_eval_string(bContext *C, const char *expr)
{
PyGILState_STATE gilstate;
PyObject *dict, *retval;
PyObject *main_ns_orig= PyDict_New();
PyObject *py_dict, *retval;
int error_ret = 0;
if (!expr) return -1;
@@ -653,9 +619,9 @@ int BPY_eval_string(bContext *C, const char *expr)
bpy_context_set(C, &gilstate);
dict= CreateGlobalDictionary(C, NULL, main_ns_orig);
py_dict= CreateGlobalDictionary(C, "<blender string>");
retval = PyRun_String(expr, Py_eval_input, dict, dict);
retval = PyRun_String(expr, Py_eval_input, py_dict, py_dict);
if (retval == NULL) {
error_ret= -1;
@@ -666,12 +632,10 @@ int BPY_eval_string(bContext *C, const char *expr)
Py_DECREF(retval);
}
CreateGlobalDictionary_Restore(main_ns_orig);
Py_DECREF(main_ns_orig);
PyDict_SetItemString(PyThreadState_GET()->interp->modules, "__main__", Py_None);
Py_DECREF(dict);
bpy_context_clear(C, &gilstate);
return error_ret;
}