minor changes to r30843

- the __main__ modules namespace was initialized cleanly but left dirty, now restore when finished executing a script incase a module uses this later.
- made the interactive console use the __main__ modules namespace.

source/blender/python/intern/bpy_interface.c

@@ -149,11 +149,12 @@ void BPY_update_modules( void )
 /*****************************************************************************
 * Description: This function creates a new Python dictionary object.
 *****************************************************************************/
-static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
+static PyObject *CreateGlobalDictionary(bContext *C, const char *filename, PyObject *main_ns_orig)
 {
 	PyObject *item;
 	PyObject *dict;
-#if 1
+
+
 	/* important we use the dict from __main__, this is what python expects
 	 * for 'pickle' to work as well as strings like this... 
 
@@ -161,6 +162,7 @@ static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
 	>> print(__import__("__main__").foo)
 	 */
 	dict= PyModule_GetDict(PyImport_AddModule("__main__"));
+	PyDict_Merge(main_ns_orig, dict, 1);
 	PyDict_Clear(dict);
 	Py_INCREF(dict);
 
@@ -168,12 +170,8 @@ static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
 	 * 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"));
-#else
-	/* otherwise this works for 99% of cases, from 2.4x */
-	dict = PyDict_New();
-	PyDict_SetItemString( dict, "__builtins__", PyEval_GetBuiltins());
-#endif
-	
+
+
 	item = PyUnicode_FromString( "__main__" );
 	PyDict_SetItemString( dict, "__name__", item );
 	Py_DECREF(item);
@@ -188,6 +186,13 @@ static PyObject *CreateGlobalDictionary( bContext *C, const char *filename )
 	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);
+}
+
 /* must be called before Py_Initialize */
 void BPY_start_python_path(void)
 {
@@ -341,6 +346,7 @@ 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) {
@@ -352,7 +358,7 @@ 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);
+		py_dict = CreateGlobalDictionary(C, fn_dummy, main_ns_orig);
 		
 		if( !text->compiled ) {	/* if it wasn't already compiled, do it now */
 			char *buf = txt_to_buf( text );
@@ -373,7 +379,7 @@ 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);
+		py_dict = CreateGlobalDictionary(C, fn, main_ns_orig);
 
 		if(fp) {
 #ifdef _WIN32
@@ -408,9 +414,8 @@ int BPY_run_python_script( bContext *C, const char *fn, struct Text *text, struc
 		Py_DECREF( py_result );
 	}
 
-	/* so __main__ module isnt left with an invalid __file__ variable which could be confusing */	
-	if (PyDict_DelItemString(py_dict, "__file__"))
-		PyErr_Clear();
+	CreateGlobalDictionary_Restore(main_ns_orig);
+	Py_DECREF(main_ns_orig);
 
 	Py_DECREF(py_dict);
 	
@@ -562,6 +567,7 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
 {
 	PyGILState_STATE gilstate;
 	PyObject *dict, *mod, *retval;
+	PyObject *main_ns_orig= PyDict_New();
 	int error_ret = 0;
 	
 	if (!value || !expr) return -1;
@@ -573,7 +579,7 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
 
 	bpy_context_set(C, &gilstate);
 	
-	dict= CreateGlobalDictionary(C, NULL);
+	dict= CreateGlobalDictionary(C, NULL, main_ns_orig);
 
 	mod = PyImport_ImportModule("math");
 	if (mod) {
@@ -623,6 +629,9 @@ int BPY_eval_button(bContext *C, const char *expr, double *value)
 		BPy_errors_to_report(CTX_wm_reports(C));
 	}
 	
+	CreateGlobalDictionary_Restore(main_ns_orig);
+	Py_DECREF(main_ns_orig);
+
 	Py_DECREF(dict);
 	bpy_context_clear(C, &gilstate);
 	
@@ -633,6 +642,7 @@ int BPY_eval_string(bContext *C, const char *expr)
 {
 	PyGILState_STATE gilstate;
 	PyObject *dict, *retval;
+	PyObject *main_ns_orig= PyDict_New();
 	int error_ret = 0;
 
 	if (!expr) return -1;
@@ -643,7 +653,7 @@ int BPY_eval_string(bContext *C, const char *expr)
 
 	bpy_context_set(C, &gilstate);
 
-	dict= CreateGlobalDictionary(C, NULL);
+	dict= CreateGlobalDictionary(C, NULL, main_ns_orig);
 
 	retval = PyRun_String(expr, Py_eval_input, dict, dict);
 
@@ -656,6 +666,9 @@ int BPY_eval_string(bContext *C, const char *expr)
 		Py_DECREF(retval);
 	}
 
+	CreateGlobalDictionary_Restore(main_ns_orig);
+	Py_DECREF(main_ns_orig);
+	
 	Py_DECREF(dict);
 	bpy_context_clear(C, &gilstate);