Merge branch 'master' into blender2.8

2 files changed, 14 insertions, 5 deletions

diff --git a/source/blender/python/intern/bpy_interface.c b/source/blender/python/intern/bpy_interface.c
index 55e477b0214..7b0daa91523 100644
--- a/source/blender/python/intern/bpy_interface.c
+++ b/source/blender/python/intern/bpy_interface.c
@@ -480,11 +480,20 @@ static bool python_script_exec(
 			 * object, but as written in the Python/C API Ref Manual, chapter 2,
 			 * 'FILE structs for different C libraries can be different and
 			 * incompatible'.
-			 * So now we load the script file data to a buffer */
+			 * So now we load the script file data to a buffer.
+			 *
+			 * Note on use of 'globals()', it's important not copy the dictionary because
+			 * tools may inspect 'sys.modules["__main__"]' for variables defined in the code
+			 * where using a copy of 'globals()' causes code execution
+			 * to leave the main namespace untouched. see: T51444
+			 *
+			 * This leaves us with the problem of variables being included,
+			 * currently this is worked around using 'dict.__del__' it's ugly but works.
+			 */
 			{
 				const char *pystring =
-				        "ns = globals().copy()\n"
-				        "with open(__file__, 'rb') as f: exec(compile(f.read(), __file__, 'exec'), ns)";
+				        "with open(__file__, 'rb') as f:"
+				        "exec(compile(f.read(), __file__, 'exec'), globals().__delitem__('f') or globals())";
 
 				fclose(fp);
 
diff --git a/source/blender/python/mathutils/mathutils_Matrix.c b/source/blender/python/mathutils/mathutils_Matrix.c
index bfd23af257b..e368e8871f3 100644
--- a/source/blender/python/mathutils/mathutils_Matrix.c
+++ b/source/blender/python/mathutils/mathutils_Matrix.c
@@ -1709,10 +1709,10 @@ static PyObject *Matrix_lerp(MatrixObject *self, PyObject *args)
 
 	/* TODO, different sized matrix */
 	if (self->num_col == 4 && self->num_row == 4) {
-		blend_m4_m4m4((float (*)[4])mat, (float (*)[4])self->matrix, (float (*)[4])mat2->matrix, fac);
+		interp_m4_m4m4((float (*)[4])mat, (float (*)[4])self->matrix, (float (*)[4])mat2->matrix, fac);
 	}
 	else if (self->num_col == 3 && self->num_row == 3) {
-		blend_m3_m3m3((float (*)[3])mat, (float (*)[3])self->matrix, (float (*)[3])mat2->matrix, fac);
+		interp_m3_m3m3((float (*)[3])mat, (float (*)[3])self->matrix, (float (*)[3])mat2->matrix, fac);
 	}
 	else {
 		PyErr_SetString(PyExc_ValueError,