/trunk: Removed final points in UI strings and messages.

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

17 files changed, 49 insertions, 49 deletions

diff --git a/rigify/__init__.py b/rigify/__init__.py
index 4884abac..fc8eb818 100644
--- a/rigify/__init__.py
+++ b/rigify/__init__.py
@@ -129,7 +129,7 @@ def register():
     bpy.utils.register_class(RigifyParameters)
     bpy.utils.register_class(RigifyArmatureLayer)
 
-    bpy.types.PoseBone.rigify_type = bpy.props.StringProperty(name="Rigify Type", description="Rig type for this bone.")
+    bpy.types.PoseBone.rigify_type = bpy.props.StringProperty(name="Rigify Type", description="Rig type for this bone")
     bpy.types.PoseBone.rigify_parameters = bpy.props.CollectionProperty(type=RigifyParameters)
 
     bpy.types.Armature.rigify_layers = bpy.props.CollectionProperty(type=RigifyArmatureLayer)
@@ -137,7 +137,7 @@ def register():
     IDStore = bpy.types.WindowManager
     IDStore.rigify_collection = bpy.props.EnumProperty(items=col_enum_list, default="All", name="Rigify Active Collection", description="The selected rig collection")
     IDStore.rigify_types = bpy.props.CollectionProperty(type=RigifyName)
-    IDStore.rigify_active_type = bpy.props.IntProperty(name="Rigify Active Type", description="The selected rig type.")
+    IDStore.rigify_active_type = bpy.props.IntProperty(name="Rigify Active Type", description="The selected rig type")
 
     # Add rig parameters
     for rig in rig_list:
diff --git a/rigify/rigs/basic/copy.py b/rigify/rigs/basic/copy.py
index d430113b..6a8800b2 100644
--- a/rigify/rigs/basic/copy.py
+++ b/rigify/rigs/basic/copy.py
@@ -85,8 +85,8 @@ class Rig:
         """ Add the parameters of this rig type to the
             RigifyParameters PropertyGroup
         """
-        group.make_control = bpy.props.BoolProperty(name="Control", default=True, description="Create a control bone for the copy.")
-        group.make_deform = bpy.props.BoolProperty(name="Deform", default=True, description="Create a deform bone for the copy.")
+        group.make_control = bpy.props.BoolProperty(name="Control", default=True, description="Create a control bone for the copy")
+        group.make_deform = bpy.props.BoolProperty(name="Deform", default=True, description="Create a deform bone for the copy")
 
 
     @classmethod
diff --git a/rigify/rigs/basic/copy_chain.py b/rigify/rigs/basic/copy_chain.py
index b1dbcd83..937b02f6 100644
--- a/rigify/rigs/basic/copy_chain.py
+++ b/rigify/rigs/basic/copy_chain.py
@@ -40,7 +40,7 @@ class Rig:
         self.make_deforms = params.make_deforms
 
         if len(self.org_bones) <= 1:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones." % (strip_org(bone_name)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones" % (strip_org(bone_name)))
 
     def generate(self):
         """ Generate the rig.
@@ -124,8 +124,8 @@ class Rig:
         """ Add the parameters of this rig type to the
             RigifyParameters PropertyGroup
         """
-        group.make_controls = bpy.props.BoolProperty(name="Controls", default=True, description="Create control bones for the copy.")
-        group.make_deforms = bpy.props.BoolProperty(name="Deform", default=True, description="Create deform bones for the copy.")
+        group.make_controls = bpy.props.BoolProperty(name="Controls", default=True, description="Create control bones for the copy")
+        group.make_deforms = bpy.props.BoolProperty(name="Deform", default=True, description="Create deform bones for the copy")
 
 
     @classmethod
diff --git a/rigify/rigs/biped/arm/__init__.py b/rigify/rigs/biped/arm/__init__.py
index 74677af0..55cd2564 100644
--- a/rigify/rigs/biped/arm/__init__.py
+++ b/rigify/rigs/biped/arm/__init__.py
@@ -95,13 +95,13 @@ class Rig:
         items = [('X', 'X', ''), ('Y', 'Y', ''), ('Z', 'Z', ''), ('-X', '-X', ''), ('-Y', '-Y', ''), ('-Z', '-Z', '')]
         group.primary_rotation_axis = bpy.props.EnumProperty(items=items, name="Primary Rotation Axis", default='X')
 
-        group.bend_hint = bpy.props.BoolProperty(name="Bend Hint", default=True, description="Give IK chain a hint about which way to bend.  Useful for perfectly straight chains.")
+        group.bend_hint = bpy.props.BoolProperty(name="Bend Hint", default=True, description="Give IK chain a hint about which way to bend.  Useful for perfectly straight chains")
 
-        group.separate_ik_layers = bpy.props.BoolProperty(name="Separate IK Control Layers:", default=False, description="Enable putting the ik controls on a separate layer from the fk controls.")
-        group.ik_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the ik controls to be on.")
+        group.separate_ik_layers = bpy.props.BoolProperty(name="Separate IK Control Layers:", default=False, description="Enable putting the ik controls on a separate layer from the fk controls")
+        group.ik_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the ik controls to be on")
 
-        group.use_upper_arm_twist = bpy.props.BoolProperty(name="Upper Arm Twist", default=True, description="Generate the dual-bone twist setup for the upper arm.")
-        group.use_forearm_twist = bpy.props.BoolProperty(name="Forearm Twist", default=True, description="Generate the dual-bone twist setup for the forearm.")
+        group.use_upper_arm_twist = bpy.props.BoolProperty(name="Upper Arm Twist", default=True, description="Generate the dual-bone twist setup for the upper arm")
+        group.use_forearm_twist = bpy.props.BoolProperty(name="Forearm Twist", default=True, description="Generate the dual-bone twist setup for the forearm")
 
     @classmethod
     def parameters_ui(self, layout, obj, bone):
diff --git a/rigify/rigs/biped/arm/deform.py b/rigify/rigs/biped/arm/deform.py
index 265c944d..112c5550 100644
--- a/rigify/rigs/biped/arm/deform.py
+++ b/rigify/rigs/biped/arm/deform.py
@@ -87,7 +87,7 @@ class Rig:
         self.org_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(self.org_bones) != 3:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones" % (strip_org(bone)))
 
         # Get rig parameters
         self.use_upper_arm_twist = params.use_upper_arm_twist
diff --git a/rigify/rigs/biped/arm/fk.py b/rigify/rigs/biped/arm/fk.py
index 214d7682..690dab50 100644
--- a/rigify/rigs/biped/arm/fk.py
+++ b/rigify/rigs/biped/arm/fk.py
@@ -45,7 +45,7 @@ class Rig:
         self.org_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(self.org_bones) != 3:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones" % (strip_org(bone)))
 
         # Get (optional) parent
         if self.obj.data.bones[bone].parent is None:
diff --git a/rigify/rigs/biped/arm/ik.py b/rigify/rigs/biped/arm/ik.py
index fb784b7d..55147a47 100644
--- a/rigify/rigs/biped/arm/ik.py
+++ b/rigify/rigs/biped/arm/ik.py
@@ -75,7 +75,7 @@ class Rig:
         self.org_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(self.org_bones) != 3:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 3 bones" % (strip_org(bone)))
 
         # Get the rig parameters
         if params.separate_ik_layers:
diff --git a/rigify/rigs/biped/leg/__init__.py b/rigify/rigs/biped/leg/__init__.py
index 21c5fa2b..c80376a8 100644
--- a/rigify/rigs/biped/leg/__init__.py
+++ b/rigify/rigs/biped/leg/__init__.py
@@ -97,13 +97,13 @@ class Rig:
         items = [('X', 'X', ''), ('Y', 'Y', ''), ('Z', 'Z', ''), ('-X', '-X', ''), ('-Y', '-Y', ''), ('-Z', '-Z', '')]
         group.primary_rotation_axis = bpy.props.EnumProperty(items=items, name="Primary Rotation Axis", default='X')
 
-        group.bend_hint = bpy.props.BoolProperty(name="Bend Hint", default=True, description="Give IK chain a hint about which way to bend.  Useful for perfectly straight chains.")
+        group.bend_hint = bpy.props.BoolProperty(name="Bend Hint", default=True, description="Give IK chain a hint about which way to bend (useful for perfectly straight chains)")
 
-        group.separate_ik_layers = bpy.props.BoolProperty(name="Separate IK Control Layers:", default=False, description="Enable putting the ik controls on a separate layer from the fk controls.")
-        group.ik_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the ik controls to be on.")
+        group.separate_ik_layers = bpy.props.BoolProperty(name="Separate IK Control Layers:", default=False, description="Enable putting the ik controls on a separate layer from the fk controls")
+        group.ik_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the ik controls to be on")
 
-        group.use_thigh_twist = bpy.props.BoolProperty(name="Thigh Twist", default=True, description="Generate the dual-bone twist setup for the thigh.")
-        group.use_shin_twist = bpy.props.BoolProperty(name="Shin Twist", default=True, description="Generate the dual-bone twist setup for the shin.")
+        group.use_thigh_twist = bpy.props.BoolProperty(name="Thigh Twist", default=True, description="Generate the dual-bone twist setup for the thigh")
+        group.use_shin_twist = bpy.props.BoolProperty(name="Shin Twist", default=True, description="Generate the dual-bone twist setup for the shin")
 
     @classmethod
     def parameters_ui(self, layout, obj, bone):
diff --git a/rigify/rigs/biped/leg/deform.py b/rigify/rigs/biped/leg/deform.py
index 3a649139..5ea8cf65 100644
--- a/rigify/rigs/biped/leg/deform.py
+++ b/rigify/rigs/biped/leg/deform.py
@@ -87,7 +87,7 @@ class Rig:
         leg_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(leg_bones) != 2:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the foot and heel
         foot = None
@@ -100,7 +100,7 @@ class Rig:
                     heel = b.name
 
         if foot is None or heel is None:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the toe
         toe = None
@@ -109,7 +109,7 @@ class Rig:
                 toe = b.name
 
         if toe is None:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         self.org_bones = leg_bones + [foot, toe, heel]
 
diff --git a/rigify/rigs/biped/leg/fk.py b/rigify/rigs/biped/leg/fk.py
index 0e51b501..5ff9d4a9 100644
--- a/rigify/rigs/biped/leg/fk.py
+++ b/rigify/rigs/biped/leg/fk.py
@@ -46,7 +46,7 @@ class Rig:
         leg_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(leg_bones) != 2:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the foot and heel
         foot = None
@@ -59,7 +59,7 @@ class Rig:
                     heel = b.name
 
         if foot is None or heel is None:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the toe
         toe = None
@@ -69,7 +69,7 @@ class Rig:
 
         # Get the toe
         if toe is None:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         self.org_bones = leg_bones + [foot, toe, heel]
 
diff --git a/rigify/rigs/biped/leg/ik.py b/rigify/rigs/biped/leg/ik.py
index 806de417..cfac1430 100644
--- a/rigify/rigs/biped/leg/ik.py
+++ b/rigify/rigs/biped/leg/ik.py
@@ -96,7 +96,7 @@ class Rig:
         leg_bones = [bone] + connected_children_names(self.obj, bone)[:2]
 
         if len(leg_bones) != 2:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the foot and heel
         foot = None
@@ -113,7 +113,7 @@ class Rig:
 
         if foot is None or heel is None:
             print("blah")
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         # Get the toe
         toe = None
@@ -123,7 +123,7 @@ class Rig:
 
         # Get toe
         if toe is None:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': incorrect bone configuration for rig type" % (strip_org(bone)))
 
         self.org_bones = leg_bones + [foot, toe, heel, rocker]
 
diff --git a/rigify/rigs/finger.py b/rigify/rigs/finger.py
index c33fdfd9..523a9edd 100644
--- a/rigify/rigs/finger.py
+++ b/rigify/rigs/finger.py
@@ -39,7 +39,7 @@ class Rig:
         self.params = params
 
         if len(self.org_bones) <= 1:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones" % (strip_org(bone)))
 
         # Get user-specified layers, if they exist
         if params.separate_extra_layers:
@@ -280,10 +280,10 @@ class Rig:
         items = [('X', 'X', ''), ('Y', 'Y', ''), ('Z', 'Z', ''), ('-X', '-X', ''), ('-Y', '-Y', ''), ('-Z', '-Z', '')]
         group.primary_rotation_axis = bpy.props.EnumProperty(items=items, name="Primary Rotation Axis", default='X')
 
-        group.separate_extra_layers = bpy.props.BoolProperty(name="Separate Secondary Control Layers:", default=False, description="Enable putting the secondary controls on a separate layer from the primary controls.")
-        group.extra_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the secondary controls to be on.")
+        group.separate_extra_layers = bpy.props.BoolProperty(name="Separate Secondary Control Layers:", default=False, description="Enable putting the secondary controls on a separate layer from the primary controls")
+        group.extra_layers = bpy.props.BoolVectorProperty(size=32, description="Layers for the secondary controls to be on")
 
-        group.use_digit_twist = bpy.props.BoolProperty(name="Digit Twist", default=True, description="Generate the dual-bone twist setup for the first finger digit.")
+        group.use_digit_twist = bpy.props.BoolProperty(name="Digit Twist", default=True, description="Generate the dual-bone twist setup for the first finger digit")
 
     @classmethod
     def parameters_ui(self, layout, obj, bone):
diff --git a/rigify/rigs/misc/delta.py b/rigify/rigs/misc/delta.py
index 12bd69ce..2db278f0 100644
--- a/rigify/rigs/misc/delta.py
+++ b/rigify/rigs/misc/delta.py
@@ -40,9 +40,9 @@ class Rig:
         bb = obj.data.bones
 
         if bb[bone].children is None:
-            raise MetarigError("RIGIFY ERROR: bone '%s': rig type requires one child." % org_name(bone.name))
+            raise MetarigError("RIGIFY ERROR: bone '%s': rig type requires one child" % org_name(bone.name))
         if bb[bone].use_connect == True:
-            raise MetarigError("RIGIFY ERROR: bone '%s': rig type cannot be connected to parent." % org_name(bone.name))
+            raise MetarigError("RIGIFY ERROR: bone '%s': rig type cannot be connected to parent" % org_name(bone.name))
 
         self.obj = obj
         self.org_bones = {"delta": bone, "child": bb[bone].children[0].name}
diff --git a/rigify/rigs/neck_short.py b/rigify/rigs/neck_short.py
index b5ffc453..edba5c8d 100644
--- a/rigify/rigs/neck_short.py
+++ b/rigify/rigs/neck_short.py
@@ -53,7 +53,7 @@ class Rig:
         self.params = params
 
         if len(self.org_bones) <= 1:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones." % (strip_org(bone_name)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones" % (strip_org(bone_name)))
 
         self.isolate = False
         if self.obj.data.bones[bone_name].parent:
diff --git a/rigify/rigs/palm.py b/rigify/rigs/palm.py
index 6ad72f4e..1309f626 100644
--- a/rigify/rigs/palm.py
+++ b/rigify/rigs/palm.py
@@ -66,7 +66,7 @@ class Rig:
         siblings = bone_siblings(obj, bone)
 
         if len(siblings) == 0:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': must have a parent and at least one sibling." % (strip_org(bone)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': must have a parent and at least one sibling" % (strip_org(bone)))
 
         # Sort list by name and distance
         siblings.sort()
diff --git a/rigify/rigs/spine.py b/rigify/rigs/spine.py
index 740cfa7e..1b77c4c3 100644
--- a/rigify/rigs/spine.py
+++ b/rigify/rigs/spine.py
@@ -75,7 +75,7 @@ class Rig:
         self.pivot_rest = min(self.pivot_rest, 1.0-(1.0/len(self.org_bones)))
 
         if len(self.org_bones) <= 1:
-            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones." % (strip_org(bone_name)))
+            raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones" % (strip_org(bone_name)))
 
     def gen_deform(self):
         """ Generate the deformation rig.
@@ -528,9 +528,9 @@ class Rig:
         """ Add the parameters of this rig type to the
             RigifyParameters PropertyGroup
         """
-        group.spine_main_control_name = bpy.props.StringProperty(name="Main control name", default="torso", description="Name that the main control bone should be given.")
-        group.rest_pivot_slide = bpy.props.FloatProperty(name="Rest Pivot Slide", default=0.0, min=0.0, max=1.0, soft_min=0.0, soft_max=1.0, description="The pivot slide value in the rest pose.")
-        group.chain_bone_controls = bpy.props.StringProperty(name="Control bone list", default="", description="Define which bones have controls.")
+        group.spine_main_control_name = bpy.props.StringProperty(name="Main control name", default="torso", description="Name that the main control bone should be given")
+        group.rest_pivot_slide = bpy.props.FloatProperty(name="Rest Pivot Slide", default=0.0, min=0.0, max=1.0, soft_min=0.0, soft_max=1.0, description="The pivot slide value in the rest pose")
+        group.chain_bone_controls = bpy.props.StringProperty(name="Control bone list", default="", description="Define which bones have controls")
 
 
     @classmethod
diff --git a/rigify/utils.py b/rigify/utils.py
index d9135271..c367c82a 100644
--- a/rigify/utils.py
+++ b/rigify/utils.py
@@ -128,7 +128,7 @@ def new_bone(obj, bone_name):
         bpy.ops.object.mode_set(mode='EDIT')
         return name
     else:
-        raise MetarigError("Can't add new bone '%s' outside of edit mode." % bone_name)
+        raise MetarigError("Can't add new bone '%s' outside of edit mode" % bone_name)
 
 
 def copy_bone(obj, bone_name, assign_name=''):
@@ -136,7 +136,7 @@ def copy_bone(obj, bone_name, assign_name=''):
         Returns the resulting bone's name.
     """
     if bone_name not in obj.data.bones:
-        raise MetarigError("copy_bone(): bone '%s' not found, cannot copy it." % bone_name)
+        raise MetarigError("copy_bone(): bone '%s' not found, cannot copy it" % bone_name)
 
     if obj == bpy.context.active_object and bpy.context.mode == 'EDIT_ARMATURE':
         if assign_name == '':
@@ -199,14 +199,14 @@ def copy_bone(obj, bone_name, assign_name=''):
 
         return bone_name_2
     else:
-        raise MetarigError("Cannot copy bones outside of edit mode.")
+        raise MetarigError("Cannot copy bones outside of edit mode")
 
 
 def flip_bone(obj, bone_name):
     """ Flips an edit bone.
     """
     if bone_name not in obj.data.bones:
-        raise MetarigError("flip_bone(): bone '%s' not found, cannot copy it." % bone_name)
+        raise MetarigError("flip_bone(): bone '%s' not found, cannot copy it" % bone_name)
 
     if obj == bpy.context.active_object and bpy.context.mode == 'EDIT_ARMATURE':
         bone = obj.data.edit_bones[bone_name]
@@ -216,14 +216,14 @@ def flip_bone(obj, bone_name):
         bone.head = tail
         bone.tail = head
     else:
-        raise MetarigError("Cannot flip bones outside of edit mode.")
+        raise MetarigError("Cannot flip bones outside of edit mode")
 
 
 def put_bone(obj, bone_name, pos):
     """ Places a bone at the given position.
     """
     if bone_name not in obj.data.bones:
-        raise MetarigError("put_bone(): bone '%s' not found, cannot copy it." % bone_name)
+        raise MetarigError("put_bone(): bone '%s' not found, cannot copy it" % bone_name)
 
     if obj == bpy.context.active_object and bpy.context.mode == 'EDIT_ARMATURE':
         bone = obj.data.edit_bones[bone_name]
@@ -231,7 +231,7 @@ def put_bone(obj, bone_name, pos):
         delta = pos - bone.head
         bone.translate(delta)
     else:
-        raise MetarigError("Cannot 'put' bones outside of edit mode.")
+        raise MetarigError("Cannot 'put' bones outside of edit mode")
 
 
 #=============================================
@@ -242,7 +242,7 @@ def obj_to_bone(obj, rig, bone_name):
     """ Places an object at the location/rotation/scale of the given bone.
     """
     if bpy.context.mode == 'EDIT_ARMATURE':
-        raise MetarigError("obj_to_bone(): does not work while in edit mode.")
+        raise MetarigError("obj_to_bone(): does not work while in edit mode")
 
     bone = rig.data.bones[bone_name]