Print3D: Cleanup

4 files changed, 21 insertions, 20 deletions

diff --git a/object_print3d_utils/__init__.py b/object_print3d_utils/__init__.py
index 26d0c7ef..5ae1d3d6 100644
--- a/object_print3d_utils/__init__.py
+++ b/object_print3d_utils/__init__.py
@@ -24,11 +24,11 @@ bl_info = {
     "blender": (2, 79, 0),
     "location": "3D View > Toolbox",
     "description": "Utilities for 3D printing",
-    "warning": "",
     "wiki_url": "https://wiki.blender.org/index.php/Extensions:2.6/Py/"
                 "Scripts/Modeling/PrintToolbox",
     "support": 'OFFICIAL',
-    "category": "Mesh"}
+    "category": "Mesh",
+    }
 
 
 if "bpy" in locals():
@@ -153,10 +153,7 @@ class Print3D_Preferences(AddonPreferences):
 
     def draw(self, context):
         layout = self.layout
-
-        col = layout.column()
-        col.label(text="Tab Category:")
-        col.prop(self, "category", text="")
+        layout.prop(self, "category")
 
 
 classes = (
diff --git a/object_print3d_utils/export.py b/object_print3d_utils/export.py
index 49a33e77..cbb607d2 100644
--- a/object_print3d_utils/export.py
+++ b/object_print3d_utils/export.py
@@ -20,14 +20,16 @@
 
 # Export wrappers and integration with external tools.
 
-import bpy
 import os
 
+import bpy
+
 
 def image_copy_guess(filepath, objects):
     # 'filepath' is the path we are writing to.
     import shutil
     from bpy_extras import object_utils
+
     image = None
     for obj in objects:
         image = object_utils.object_image_guess(obj)
@@ -168,7 +170,7 @@ def write_mesh(context, info, report_cb):
                 global_scale=global_scale,
                 )
     else:
-        assert(0)
+        assert 0
 
     # for formats that don't support images
     if export_format in {'STL', 'PLY'}:
diff --git a/object_print3d_utils/mesh_helpers.py b/object_print3d_utils/mesh_helpers.py
index e1386b84..a5d5f74f 100644
--- a/object_print3d_utils/mesh_helpers.py
+++ b/object_print3d_utils/mesh_helpers.py
@@ -21,7 +21,6 @@
 # Generic helper functions, to be used by any modules.
 
 import bmesh
-import array
 
 
 def bmesh_copy_from_object(obj, transform=True, triangulate=True, apply_modifiers=False):
@@ -29,7 +28,7 @@ def bmesh_copy_from_object(obj, transform=True, triangulate=True, apply_modifier
     Returns a transformed, triangulated copy of the mesh
     """
 
-    assert(obj.type == 'MESH')
+    assert obj.type == 'MESH'
 
     if apply_modifiers and obj.modifiers:
         import bpy
@@ -101,18 +100,17 @@ def bmesh_check_self_intersect_object(obj):
 
     returns an array of edge index values.
     """
-    import bpy
+    import array
+    import mathutils
 
     if not obj.data.polygons:
         return array.array('i', ())
 
     bm = bmesh_copy_from_object(obj, transform=False, triangulate=False)
-
-    import mathutils
     tree = mathutils.bvhtree.BVHTree.FromBMesh(bm, epsilon=0.00001)
-
     overlap = tree.overlap(tree)
     faces_error = {i for i_pair in overlap for i in i_pair}
+
     return array.array('i', faces_error)
 
 
@@ -142,7 +140,7 @@ def bmesh_face_points_random(f, num_points=1, margin=0.05):
 
 
 def bmesh_check_thick_object(obj, thickness):
-
+    import array
     import bpy
 
     # Triangulate
@@ -284,7 +282,7 @@ def object_merge(context, objects):
 def face_is_distorted(ele, angle_distort):
     no = ele.normal
     angle_fn = no.angle
- 
+
     for loop in ele.loops:
         loopno = loop.calc_normal()
 
@@ -293,5 +291,5 @@ def face_is_distorted(ele, angle_distort):
 
         if angle_fn(loopno, 1000.0) > angle_distort:
             return True
- 
+
     return False
diff --git a/object_print3d_utils/operators.py b/object_print3d_utils/operators.py
index be8c323e..e7ff4713 100644
--- a/object_print3d_utils/operators.py
+++ b/object_print3d_utils/operators.py
@@ -20,8 +20,6 @@
 
 # All Operator
 
-import array
-
 import bpy
 from bpy.types import Operator
 from bpy.props import (
@@ -131,6 +129,8 @@ class MESH_OT_Print3D_Check_Solid(Operator):
 
     @staticmethod
     def main_check(obj, info):
+        import array
+
         bm = mesh_helpers.bmesh_copy_from_object(obj, transform=False, triangulate=False)
 
         edges_non_manifold = array.array('i', (i for i, ele in enumerate(bm.edges)
@@ -173,6 +173,8 @@ class MESH_OT_Print3D_Check_Degenerate(Operator):
 
     @staticmethod
     def main_check(obj, info):
+        import array
+
         scene = bpy.context.scene
         print_3d = scene.print_3d
         threshold = print_3d.threshold_zero
@@ -201,6 +203,8 @@ class MESH_OT_Print3D_Check_Distorted(Operator):
 
     @staticmethod
     def main_check(obj, info):
+        import array
+
         scene = bpy.context.scene
         print_3d = scene.print_3d
         angle_distort = print_3d.angle_distort
@@ -356,7 +360,7 @@ class MESH_OT_Print3D_Clean_Isolated(Operator):
             return ele.is_wire
 
         def vert_is_isolated(ele):
-            return (not bool(ele.link_edges))
+            return not bool(ele.link_edges)
 
         # --- face
         elems_remove = [ele for ele in bm.faces if face_is_isolated(ele)]