minor changes to the python api.

- pep8 script was giving an error on non utf8 scons source files.
- use PyList_SET_ITEM macro when list type is ensured.
- all mathutils types use subtypes to create new types when available.
- use defines MAT3_UNITY, MAT4_UNITY to initialize unit matrices.

1 files changed, 5 insertions, 6 deletions

diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c
index 076dae41e6a..f15e0bc3144 100644
--- a/source/blender/blenkernel/intern/constraint.c
+++ b/source/blender/blenkernel/intern/constraint.c
@@ -1202,12 +1202,11 @@ static void followpath_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstr
 	if (VALID_CONS_TARGET(ct)) {
 		Curve *cu= ct->tar->data;
 		float vec[4], dir[3], radius;
-		float totmat[4][4];
+		float totmat[4][4]= MAT4_UNITY;
 		float curvetime;
-		
-		unit_m4(totmat);
+
 		unit_m4(ct->matrix);
-		
+
 		/* note: when creating constraints that follow path, the curve gets the CU_PATH set now,
 		 *		currently for paths to work it needs to go through the bevlist/displist system (ton) 
 		 */
@@ -3106,11 +3105,11 @@ static void clampto_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta
 	/* only evaluate if there is a target and it is a curve */
 	if (VALID_CONS_TARGET(ct) && (ct->tar->type == OB_CURVE)) {
 		Curve *cu= data->tar->data;
-		float obmat[4][4], targetMatrix[4][4], ownLoc[3];
+		float obmat[4][4], ownLoc[3];
 		float curveMin[3], curveMax[3];
+		float targetMatrix[4][4]= MAT4_UNITY;
 		
 		copy_m4_m4(obmat, cob->matrix);
-		unit_m4(targetMatrix);
 		copy_v3_v3(ownLoc, obmat[3]);
 		
 		INIT_MINMAX(curveMin, curveMax)