Store the context for python in a static variable with assessor functions - BPy_GetContext/BPy_SetContext,

Still not happy with this in the long term but its less problematic then storing the context in pythons namespace which couldn't be set before importing modules.

This might fix a crash quite a few people have reported (but I cant reproduce).

source/blender/python/intern/bpy_ui.c

@@ -303,17 +303,9 @@ static PyObject *Method_registerKey( PyObject * self, PyObject * args )
 	Py_RETURN_NONE;
 }
 
-/* internal use only */
-static bContext *get_py_context__internal(void)
-{
-	PyObject *globals = PyEval_GetGlobals();
-	PyObject *val= PyDict_GetItemString(globals, "__bpy_context__"); /* borrow ref */
-	return PyCObject_AsVoidPtr(val);
-}
-
 static PyObject *Method_getRegonPtr( PyObject * self )
 {
-	bContext *C= get_py_context__internal();
+	bContext *C= BPy_GetContext();
 	
 	ARegion *ar = CTX_wm_region(C);
 	return PyCObject_FromVoidPtr(ar, NULL);
@@ -321,7 +313,7 @@ static PyObject *Method_getRegonPtr( PyObject * self )
 
 static PyObject *Method_getAreaPtr( PyObject * self )
 {
-	bContext *C= get_py_context__internal();
+	bContext *C= BPy_GetContext();
 	
 	ScrArea *area = CTX_wm_area(C);
 	return PyCObject_FromVoidPtr(area, NULL);
@@ -329,7 +321,7 @@ static PyObject *Method_getAreaPtr( PyObject * self )
 
 static PyObject *Method_getScreenPtr( PyObject * self )
 {
-	bContext *C= get_py_context__internal();
+	bContext *C= BPy_GetContext();
 	
 	bScreen *screen= CTX_wm_screen(C);
 	return PyCObject_FromVoidPtr(screen, NULL);
@@ -337,7 +329,7 @@ static PyObject *Method_getScreenPtr( PyObject * self )
 
 static PyObject *Method_getSpacePtr( PyObject * self )
 {
-	bContext *C= get_py_context__internal();
+	bContext *C= BPy_GetContext();
 	
 	SpaceLink *sl= CTX_wm_space_data(C);
 	return PyCObject_FromVoidPtr(sl, NULL);
@@ -345,7 +337,7 @@ static PyObject *Method_getSpacePtr( PyObject * self )
 
 static PyObject *Method_getWindowPtr( PyObject * self )
 {
-	bContext *C= get_py_context__internal();
+	bContext *C= BPy_GetContext();
 	
 	wmWindow *window= CTX_wm_window(C);
 	return PyCObject_FromVoidPtr(window, NULL);