From 50597ae007a6a30ca5269b2cfe5e194f39afc70d Mon Sep 17 00:00:00 2001
From: Matthew Spellings <mspells@umich.edu>
Date: Sun, 23 Feb 2020 07:49:11 -0500
Subject: [PATCH] Clean up import style

---
 plato/draw/Arrows2D.py                        | 3 ++-
 plato/draw/Box.py                             | 2 ++
 plato/draw/ConvexPolyhedra.py                 | 2 ++
 plato/draw/ConvexSpheropolyhedra.py           | 2 ++
 plato/draw/DiskUnions.py                      | 2 ++
 plato/draw/Disks.py                           | 2 ++
 plato/draw/Ellipsoids.py                      | 2 ++
 plato/draw/Lines.py                           | 2 ++
 plato/draw/Mesh.py                            | 2 ++
 plato/draw/Polygons.py                        | 2 ++
 plato/draw/Scene.py                           | 2 ++
 plato/draw/SpherePoints.py                    | 2 ++
 plato/draw/SphereUnions.py                    | 2 ++
 plato/draw/Spheres.py                         | 2 ++
 plato/draw/Spheropolygons.py                  | 2 ++
 plato/draw/Voronoi.py                         | 2 ++
 plato/draw/__init__.py                        | 1 -
 plato/draw/blender/ConvexPolyhedra.py         | 6 ++++--
 plato/draw/blender/Scene.py                   | 5 +++--
 plato/draw/blender/Spheres.py                 | 6 ++++--
 plato/draw/fresnel/ConvexPolyhedra.py         | 4 +++-
 plato/draw/fresnel/Disks.py                   | 1 +
 plato/draw/fresnel/Ellipsoids.py              | 4 +++-
 plato/draw/fresnel/Lines.py                   | 4 +++-
 plato/draw/fresnel/Polygons.py                | 3 ++-
 plato/draw/fresnel/Scene.py                   | 2 +-
 plato/draw/fresnel/SphereUnions.py            | 3 ++-
 plato/draw/fresnel/Spheres.py                 | 1 +
 plato/draw/fresnel/Spheropolygons.py          | 3 ++-
 plato/draw/internal.py                        | 3 ++-
 plato/draw/matplotlib/ConvexPolyhedra.py      | 5 +++--
 plato/draw/matplotlib/DiskUnions.py           | 5 +++--
 plato/draw/matplotlib/Disks.py                | 3 ++-
 plato/draw/matplotlib/Polygons.py             | 7 ++++---
 plato/draw/matplotlib/Scene.py                | 2 ++
 plato/draw/matplotlib/SpherePoints.py         | 1 +
 plato/draw/matplotlib/Spheres.py              | 4 +++-
 plato/draw/matplotlib/Spheropolygons.py       | 7 ++++---
 plato/draw/povray/ConvexPolyhedra.py          | 2 ++
 plato/draw/povray/ConvexSpheropolyhedra.py    | 1 +
 plato/draw/povray/Ellipsoids.py               | 1 +
 plato/draw/povray/Lines.py                    | 2 ++
 plato/draw/povray/Mesh.py                     | 1 +
 plato/draw/povray/Scene.py                    | 3 ++-
 plato/draw/povray/SphereUnions.py             | 1 +
 plato/draw/povray/Spheres.py                  | 1 +
 plato/draw/pythreejs/ConvexPolyhedra.py       | 3 ++-
 plato/draw/pythreejs/ConvexSpheropolyhedra.py | 3 ++-
 plato/draw/pythreejs/Ellipsoids.py            | 4 +++-
 plato/draw/pythreejs/Lines.py                 | 5 +++--
 plato/draw/pythreejs/Mesh.py                  | 3 ++-
 plato/draw/pythreejs/Scene.py                 | 5 +++--
 plato/draw/pythreejs/Spheres.py               | 4 +++-
 plato/draw/pythreejs/internal.py              | 3 ++-
 plato/draw/vispy/ConvexPolyhedra.py           | 2 ++
 plato/draw/vispy/ConvexSpheropolyhedra.py     | 2 ++
 plato/draw/vispy/DiskUnions.py                | 2 ++
 plato/draw/vispy/Disks.py                     | 2 ++
 plato/draw/vispy/Ellipsoids.py                | 2 ++
 plato/draw/vispy/Lines.py                     | 2 ++
 plato/draw/vispy/Mesh.py                      | 2 ++
 plato/draw/vispy/Polygons.py                  | 2 ++
 plato/draw/vispy/Scene.py                     | 4 +++-
 plato/draw/vispy/SpherePoints.py              | 2 ++
 plato/draw/vispy/SphereUnions.py              | 2 ++
 plato/draw/vispy/Spheres.py                   | 2 ++
 plato/draw/vispy/Spheropolygons.py            | 2 ++
 plato/draw/vispy/Voronoi.py                   | 2 ++
 plato/draw/vispy/internal.py                  | 2 ++
 plato/draw/zdog/Scene.py                      | 3 ++-
 plato/draw/zdog/Spheres.py                    | 2 ++
 plato/draw/zdog/internal.py                   | 1 +
 plato/imp.py                                  | 3 ++-
 plato/mesh.py                                 | 1 +
 74 files changed, 155 insertions(+), 42 deletions(-)

diff --git a/plato/draw/Arrows2D.py b/plato/draw/Arrows2D.py
index 7c29e25..7055aad 100644
--- a/plato/draw/Arrows2D.py
+++ b/plato/draw/Arrows2D.py
@@ -1,6 +1,7 @@
 import numpy as np
-from .Polygons import Polygons
+
 from .internal import ShapeDecorator
+from .Polygons import Polygons
 
 @ShapeDecorator
 class Arrows2D(Polygons):
diff --git a/plato/draw/Box.py b/plato/draw/Box.py
index 1592e2d..7e15035 100644
--- a/plato/draw/Box.py
+++ b/plato/draw/Box.py
@@ -1,6 +1,8 @@
 import functools
 import itertools
+
 import numpy as np
+
 from .. import math
 from .internal import ShapeDecorator, ShapeAttribute
 from .Lines import Lines
diff --git a/plato/draw/ConvexPolyhedra.py b/plato/draw/ConvexPolyhedra.py
index 1dc70fb..4104c07 100644
--- a/plato/draw/ConvexPolyhedra.py
+++ b/plato/draw/ConvexPolyhedra.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/ConvexSpheropolyhedra.py b/plato/draw/ConvexSpheropolyhedra.py
index 85bfe7e..66e179d 100644
--- a/plato/draw/ConvexSpheropolyhedra.py
+++ b/plato/draw/ConvexSpheropolyhedra.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/DiskUnions.py b/plato/draw/DiskUnions.py
index 095b769..ab54533 100644
--- a/plato/draw/DiskUnions.py
+++ b/plato/draw/DiskUnions.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Disks.py b/plato/draw/Disks.py
index 328f8ed..4977bdd 100644
--- a/plato/draw/Disks.py
+++ b/plato/draw/Disks.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Ellipsoids.py b/plato/draw/Ellipsoids.py
index 4ef7823..a2f32e9 100644
--- a/plato/draw/Ellipsoids.py
+++ b/plato/draw/Ellipsoids.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Lines.py b/plato/draw/Lines.py
index abe4e47..3f9f7b5 100644
--- a/plato/draw/Lines.py
+++ b/plato/draw/Lines.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Mesh.py b/plato/draw/Mesh.py
index d9ab021..c3b2bbb 100644
--- a/plato/draw/Mesh.py
+++ b/plato/draw/Mesh.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 from .. import mesh
 
diff --git a/plato/draw/Polygons.py b/plato/draw/Polygons.py
index b99c87b..ec65189 100644
--- a/plato/draw/Polygons.py
+++ b/plato/draw/Polygons.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Scene.py b/plato/draw/Scene.py
index 0d26e15..7ee78ba 100644
--- a/plato/draw/Scene.py
+++ b/plato/draw/Scene.py
@@ -1,5 +1,7 @@
 import logging
+
 import numpy as np
+
 from .internal import Shape
 
 DEFAULT_DIRECTIONAL_LIGHTS = (
diff --git a/plato/draw/SpherePoints.py b/plato/draw/SpherePoints.py
index d1beb58..71478b4 100644
--- a/plato/draw/SpherePoints.py
+++ b/plato/draw/SpherePoints.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/SphereUnions.py b/plato/draw/SphereUnions.py
index 9247e2b..32e68ba 100644
--- a/plato/draw/SphereUnions.py
+++ b/plato/draw/SphereUnions.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Spheres.py b/plato/draw/Spheres.py
index 17fd80f..a14e657 100644
--- a/plato/draw/Spheres.py
+++ b/plato/draw/Spheres.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Spheropolygons.py b/plato/draw/Spheropolygons.py
index cbce399..e37ae76 100644
--- a/plato/draw/Spheropolygons.py
+++ b/plato/draw/Spheropolygons.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/Voronoi.py b/plato/draw/Voronoi.py
index 9dc293e..ef7df65 100644
--- a/plato/draw/Voronoi.py
+++ b/plato/draw/Voronoi.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import Shape, ShapeDecorator, ShapeAttribute
 
 @ShapeDecorator
diff --git a/plato/draw/__init__.py b/plato/draw/__init__.py
index 161f868..05bdbe7 100644
--- a/plato/draw/__init__.py
+++ b/plato/draw/__init__.py
@@ -1,6 +1,5 @@
 from .Scene import Scene
 
-
 from .Arrows2D import Arrows2D
 from .Box import Box
 from .Disks import Disks
diff --git a/plato/draw/blender/ConvexPolyhedra.py b/plato/draw/blender/ConvexPolyhedra.py
index 9f18f95..d640167 100644
--- a/plato/draw/blender/ConvexPolyhedra.py
+++ b/plato/draw/blender/ConvexPolyhedra.py
@@ -1,8 +1,10 @@
-import bpy
 import itertools
-from ... import draw, geometry, math, mesh
+
+import bpy
 import numpy as np
 
+from ... import draw, geometry, math, mesh
+
 class ConvexPolyhedra(draw.ConvexPolyhedra):
 
     def render(self, scene, suffix='', translation=(0, 0, 0),
diff --git a/plato/draw/blender/Scene.py b/plato/draw/blender/Scene.py
index 7923b4c..c774e7d 100644
--- a/plato/draw/blender/Scene.py
+++ b/plato/draw/blender/Scene.py
@@ -1,6 +1,7 @@
-from ... import draw
-import numpy as np
 import bpy
+import numpy as np
+
+from ... import draw
 
 class Scene(draw.Scene):
     __doc__ = draw.Scene.__doc__
diff --git a/plato/draw/blender/Spheres.py b/plato/draw/blender/Spheres.py
index 91a1ddd..57817b6 100644
--- a/plato/draw/blender/Spheres.py
+++ b/plato/draw/blender/Spheres.py
@@ -1,8 +1,10 @@
-import bpy
 import itertools
-from ... import draw, math, mesh
+
+import bpy
 import numpy as np
 
+from ... import draw, math, mesh
+
 class Spheres(draw.Spheres):
 
     def render(self, scene, suffix='', translation=(0, 0, 0),
diff --git a/plato/draw/fresnel/ConvexPolyhedra.py b/plato/draw/fresnel/ConvexPolyhedra.py
index 84a7e6b..91019c6 100644
--- a/plato/draw/fresnel/ConvexPolyhedra.py
+++ b/plato/draw/fresnel/ConvexPolyhedra.py
@@ -1,6 +1,8 @@
-import fresnel
 import itertools
+
+import fresnel
 import numpy as np
+
 from ... import draw
 from ..internal import ShapeAttribute, ShapeDecorator
 from .FresnelPrimitive import FresnelPrimitive
diff --git a/plato/draw/fresnel/Disks.py b/plato/draw/fresnel/Disks.py
index b4a5831..df4168d 100644
--- a/plato/draw/fresnel/Disks.py
+++ b/plato/draw/fresnel/Disks.py
@@ -1,4 +1,5 @@
 import fresnel
+
 from ... import draw
 from .FresnelPrimitive import FresnelPrimitiveSolid
 
diff --git a/plato/draw/fresnel/Ellipsoids.py b/plato/draw/fresnel/Ellipsoids.py
index 12e65da..41a18a8 100644
--- a/plato/draw/fresnel/Ellipsoids.py
+++ b/plato/draw/fresnel/Ellipsoids.py
@@ -1,6 +1,8 @@
-import fresnel
 import itertools
+
+import fresnel
 import numpy as np
+
 from ... import draw
 from ...geometry import fibonacciPositions
 from ..internal import ShapeAttribute, ShapeDecorator
diff --git a/plato/draw/fresnel/Lines.py b/plato/draw/fresnel/Lines.py
index 1fdb7e2..05ddd34 100644
--- a/plato/draw/fresnel/Lines.py
+++ b/plato/draw/fresnel/Lines.py
@@ -1,6 +1,8 @@
-import fresnel
 import itertools
+
+import fresnel
 import numpy as np
+
 from ... import draw
 from ..internal import ShapeAttribute, ShapeDecorator
 from .FresnelPrimitive import FresnelPrimitiveSolid
diff --git a/plato/draw/fresnel/Polygons.py b/plato/draw/fresnel/Polygons.py
index 61691c8..95daaf9 100644
--- a/plato/draw/fresnel/Polygons.py
+++ b/plato/draw/fresnel/Polygons.py
@@ -1,7 +1,8 @@
 import fresnel
+import rowan
+
 from ... import draw
 from .FresnelPrimitive import FresnelPrimitiveSolid
-import rowan
 
 class Polygons(FresnelPrimitiveSolid, draw.Polygons):
     __doc__ = draw.Polygons.__doc__
diff --git a/plato/draw/fresnel/Scene.py b/plato/draw/fresnel/Scene.py
index 039c847..f0ea3e7 100644
--- a/plato/draw/fresnel/Scene.py
+++ b/plato/draw/fresnel/Scene.py
@@ -1,8 +1,8 @@
 import fresnel
 import numpy as np
 import rowan
-from ... import draw
 
+from ... import draw
 
 class Scene(draw.Scene):
     __doc__ = (draw.Scene.__doc__ or '') + """
diff --git a/plato/draw/fresnel/SphereUnions.py b/plato/draw/fresnel/SphereUnions.py
index 68d286c..a0fe885 100644
--- a/plato/draw/fresnel/SphereUnions.py
+++ b/plato/draw/fresnel/SphereUnions.py
@@ -1,8 +1,9 @@
 import fresnel
+import numpy as np
+
 from ... import draw
 from ... import math
 from .FresnelPrimitive import FresnelPrimitive
-import numpy as np
 
 class SphereUnions(FresnelPrimitive, draw.SphereUnions):
     __doc__ = draw.SphereUnions.__doc__
diff --git a/plato/draw/fresnel/Spheres.py b/plato/draw/fresnel/Spheres.py
index 8e25e9d..a551722 100644
--- a/plato/draw/fresnel/Spheres.py
+++ b/plato/draw/fresnel/Spheres.py
@@ -1,4 +1,5 @@
 import fresnel
+
 from ... import draw
 from .FresnelPrimitive import FresnelPrimitive
 
diff --git a/plato/draw/fresnel/Spheropolygons.py b/plato/draw/fresnel/Spheropolygons.py
index 70294c9..beb53e8 100644
--- a/plato/draw/fresnel/Spheropolygons.py
+++ b/plato/draw/fresnel/Spheropolygons.py
@@ -1,7 +1,8 @@
 import fresnel
+import rowan
+
 from ... import draw
 from .FresnelPrimitive import FresnelPrimitiveSolid
-import rowan
 
 class Spheropolygons(FresnelPrimitiveSolid, draw.Spheropolygons):
     __doc__ = draw.Spheropolygons.__doc__
diff --git a/plato/draw/internal.py b/plato/draw/internal.py
index 396ea14..6689cb4 100644
--- a/plato/draw/internal.py
+++ b/plato/draw/internal.py
@@ -1,6 +1,7 @@
+from collections import namedtuple
 import functools
 import inspect
-from collections import namedtuple
+
 import numpy as np
 
 ATTRIBUTE_DOCSTRING_HEADER = '\n\nThis primitive has the following attributes:'
diff --git a/plato/draw/matplotlib/ConvexPolyhedra.py b/plato/draw/matplotlib/ConvexPolyhedra.py
index c0d3f13..fa11ff0 100644
--- a/plato/draw/matplotlib/ConvexPolyhedra.py
+++ b/plato/draw/matplotlib/ConvexPolyhedra.py
@@ -1,10 +1,11 @@
 import numpy as np
+from matplotlib.path import Path
+from matplotlib.patches import PathPatch, Polygon
+
 from ... import math
 from ... import geometry
 from ... import draw
 from .internal import PatchUser
-from matplotlib.path import Path
-from matplotlib.patches import PathPatch, Polygon
 
 class ConvexPolyhedra(draw.ConvexPolyhedra, PatchUser):
     __doc__ = draw.ConvexPolyhedra.__doc__
diff --git a/plato/draw/matplotlib/DiskUnions.py b/plato/draw/matplotlib/DiskUnions.py
index 08f519e..27077f6 100644
--- a/plato/draw/matplotlib/DiskUnions.py
+++ b/plato/draw/matplotlib/DiskUnions.py
@@ -1,8 +1,9 @@
+from matplotlib.patches import Circle, Wedge
+from matplotlib.transforms import Affine2D
 import numpy as np
+
 from ... import draw
 from .internal import PatchUser
-from matplotlib.patches import Circle, Wedge
-from matplotlib.transforms import Affine2D
 
 class DiskUnions(draw.DiskUnions, PatchUser):
     __doc__ = draw.DiskUnions.__doc__
diff --git a/plato/draw/matplotlib/Disks.py b/plato/draw/matplotlib/Disks.py
index 26a8de8..9b2f3d6 100644
--- a/plato/draw/matplotlib/Disks.py
+++ b/plato/draw/matplotlib/Disks.py
@@ -1,7 +1,8 @@
+from matplotlib.patches import Circle, Wedge
 import numpy as np
+
 from ... import draw
 from .internal import PatchUser
-from matplotlib.patches import Circle, Wedge
 
 class Disks(draw.Disks, PatchUser):
     __doc__ = draw.Disks.__doc__
diff --git a/plato/draw/matplotlib/Polygons.py b/plato/draw/matplotlib/Polygons.py
index fd8d32d..28436b3 100644
--- a/plato/draw/matplotlib/Polygons.py
+++ b/plato/draw/matplotlib/Polygons.py
@@ -1,10 +1,11 @@
+from matplotlib.path import Path
+from matplotlib.patches import PathPatch, Polygon
+from matplotlib.transforms import Affine2D
 import numpy as np
+
 from ... import geometry
 from ... import draw
 from .internal import PatchUser
-from matplotlib.path import Path
-from matplotlib.patches import PathPatch, Polygon
-from matplotlib.transforms import Affine2D
 
 class Polygons(draw.Polygons, PatchUser):
     __doc__ = draw.Polygons.__doc__
diff --git a/plato/draw/matplotlib/Scene.py b/plato/draw/matplotlib/Scene.py
index 451c422..27ba7b5 100644
--- a/plato/draw/matplotlib/Scene.py
+++ b/plato/draw/matplotlib/Scene.py
@@ -1,7 +1,9 @@
 import contextlib
+
 import matplotlib.pyplot as pp
 from matplotlib.collections import PatchCollection
 import numpy as np
+
 from ... import draw
 
 @contextlib.contextmanager
diff --git a/plato/draw/matplotlib/SpherePoints.py b/plato/draw/matplotlib/SpherePoints.py
index 5bb1c0b..d09832d 100644
--- a/plato/draw/matplotlib/SpherePoints.py
+++ b/plato/draw/matplotlib/SpherePoints.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ... import draw
 from ... import math
 
diff --git a/plato/draw/matplotlib/Spheres.py b/plato/draw/matplotlib/Spheres.py
index 68afa43..f0f6228 100644
--- a/plato/draw/matplotlib/Spheres.py
+++ b/plato/draw/matplotlib/Spheres.py
@@ -1,10 +1,12 @@
 import itertools
+
+from matplotlib.patches import Circle
 import numpy as np
+
 from ... import math
 from ... import draw
 from ...draw import internal
 from .internal import PatchUser
-from matplotlib.patches import Circle
 
 @internal.ShapeDecorator
 class Spheres(draw.Spheres, PatchUser):
diff --git a/plato/draw/matplotlib/Spheropolygons.py b/plato/draw/matplotlib/Spheropolygons.py
index f6bc01d..2f63d93 100644
--- a/plato/draw/matplotlib/Spheropolygons.py
+++ b/plato/draw/matplotlib/Spheropolygons.py
@@ -1,9 +1,10 @@
-import numpy as np
-from ... import draw
-from .internal import PatchUser
 from matplotlib.path import Path
 from matplotlib.patches import PathPatch
 from matplotlib.transforms import Affine2D
+import numpy as np
+
+from ... import draw
+from .internal import PatchUser
 
 class Spheropolygons(draw.Spheropolygons, PatchUser):
     __doc__ = draw.Spheropolygons.__doc__
diff --git a/plato/draw/povray/ConvexPolyhedra.py b/plato/draw/povray/ConvexPolyhedra.py
index 6b7c13b..14d52f8 100644
--- a/plato/draw/povray/ConvexPolyhedra.py
+++ b/plato/draw/povray/ConvexPolyhedra.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import draw
 from ... import mesh as pmesh
 from ... import geometry
diff --git a/plato/draw/povray/ConvexSpheropolyhedra.py b/plato/draw/povray/ConvexSpheropolyhedra.py
index 111d90d..3f34881 100644
--- a/plato/draw/povray/ConvexSpheropolyhedra.py
+++ b/plato/draw/povray/ConvexSpheropolyhedra.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ... import draw
 from ... import mesh as pmesh
 from ... import geometry
diff --git a/plato/draw/povray/Ellipsoids.py b/plato/draw/povray/Ellipsoids.py
index 22f26cf..e5eca6f 100644
--- a/plato/draw/povray/Ellipsoids.py
+++ b/plato/draw/povray/Ellipsoids.py
@@ -1,5 +1,6 @@
 import numpy as np
 import rowan
+
 from ... import draw, mesh
 
 class Ellipsoids(draw.Ellipsoids):
diff --git a/plato/draw/povray/Lines.py b/plato/draw/povray/Lines.py
index 1b78ebc..d052e91 100644
--- a/plato/draw/povray/Lines.py
+++ b/plato/draw/povray/Lines.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import draw
 from ..internal import ShapeDecorator, ShapeAttribute
 from ... import math as pmath
diff --git a/plato/draw/povray/Mesh.py b/plato/draw/povray/Mesh.py
index c8d9323..061654a 100644
--- a/plato/draw/povray/Mesh.py
+++ b/plato/draw/povray/Mesh.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ... import draw
 from ... import math as pmath
 from ... import mesh
diff --git a/plato/draw/povray/Scene.py b/plato/draw/povray/Scene.py
index 98194e4..9c16215 100644
--- a/plato/draw/povray/Scene.py
+++ b/plato/draw/povray/Scene.py
@@ -3,10 +3,11 @@
 import subprocess
 import tempfile
 
+import numpy as np
+
 from ... import draw
 from ... import math
 from ... import __version__
-import numpy as np
 
 class Scene(draw.Scene):
     __doc__ = (draw.Scene.__doc__ or '') + """
diff --git a/plato/draw/povray/SphereUnions.py b/plato/draw/povray/SphereUnions.py
index ae2c277..f763147 100644
--- a/plato/draw/povray/SphereUnions.py
+++ b/plato/draw/povray/SphereUnions.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ... import draw
 from ... import math
 from ... import mesh
diff --git a/plato/draw/povray/Spheres.py b/plato/draw/povray/Spheres.py
index c662e61..c14ff8c 100644
--- a/plato/draw/povray/Spheres.py
+++ b/plato/draw/povray/Spheres.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from ... import draw
 from ... import math
 from ... import mesh
diff --git a/plato/draw/pythreejs/ConvexPolyhedra.py b/plato/draw/pythreejs/ConvexPolyhedra.py
index 8d33d59..c6415ff 100644
--- a/plato/draw/pythreejs/ConvexPolyhedra.py
+++ b/plato/draw/pythreejs/ConvexPolyhedra.py
@@ -1,7 +1,8 @@
+import numpy as np
+
 from ... import draw
 from ... import mesh
 from .internal import ThreeJSPrimitive
-import numpy as np
 
 class ConvexPolyhedra(draw.ConvexPolyhedra, ThreeJSPrimitive):
     __doc__ = draw.ConvexPolyhedra.__doc__
diff --git a/plato/draw/pythreejs/ConvexSpheropolyhedra.py b/plato/draw/pythreejs/ConvexSpheropolyhedra.py
index b46c0f9..7e1aeb1 100644
--- a/plato/draw/pythreejs/ConvexSpheropolyhedra.py
+++ b/plato/draw/pythreejs/ConvexSpheropolyhedra.py
@@ -1,7 +1,8 @@
+import numpy as np
+
 from ... import draw
 from ... import mesh
 from .internal import ThreeJSPrimitive
-import numpy as np
 
 class ConvexSpheropolyhedra(draw.ConvexSpheropolyhedra, ThreeJSPrimitive):
     __doc__ = draw.ConvexSpheropolyhedra.__doc__
diff --git a/plato/draw/pythreejs/Ellipsoids.py b/plato/draw/pythreejs/Ellipsoids.py
index 6ee296c..a7d7897 100644
--- a/plato/draw/pythreejs/Ellipsoids.py
+++ b/plato/draw/pythreejs/Ellipsoids.py
@@ -1,10 +1,12 @@
 import itertools
+
+import numpy as np
+
 from ... import draw
 from ...geometry import fibonacciPositions
 from ... import mesh
 from .internal import ThreeJSPrimitive
 from ..internal import ShapeAttribute, ShapeDecorator
-import numpy as np
 
 @ShapeDecorator
 class Ellipsoids(draw.Ellipsoids, ThreeJSPrimitive):
diff --git a/plato/draw/pythreejs/Lines.py b/plato/draw/pythreejs/Lines.py
index 67cf69b..c93a213 100644
--- a/plato/draw/pythreejs/Lines.py
+++ b/plato/draw/pythreejs/Lines.py
@@ -1,8 +1,9 @@
+import numpy as np
+import rowan
+
 from ... import draw
 from ... import geometry
 from .internal import ThreeJSPrimitive
-import numpy as np
-import rowan
 
 class Lines(draw.Lines, ThreeJSPrimitive):
     __doc__ = draw.Lines.__doc__
diff --git a/plato/draw/pythreejs/Mesh.py b/plato/draw/pythreejs/Mesh.py
index 9eef312..3738661 100644
--- a/plato/draw/pythreejs/Mesh.py
+++ b/plato/draw/pythreejs/Mesh.py
@@ -1,7 +1,8 @@
+import numpy as np
+
 from ... import draw
 from ... import mesh
 from .internal import ThreeJSPrimitive
-import numpy as np
 
 class Mesh(draw.Mesh, ThreeJSPrimitive):
     __doc__ = draw.Mesh.__doc__
diff --git a/plato/draw/pythreejs/Scene.py b/plato/draw/pythreejs/Scene.py
index 9678b56..ae5ace9 100644
--- a/plato/draw/pythreejs/Scene.py
+++ b/plato/draw/pythreejs/Scene.py
@@ -1,9 +1,10 @@
-from ... import draw
-from ..Scene import DEFAULT_DIRECTIONAL_LIGHTS
 import rowan
 import numpy as np
 import pythreejs
 
+from ... import draw
+from ..Scene import DEFAULT_DIRECTIONAL_LIGHTS
+
 class Scene(draw.Scene):
     def __init__(self, *args, **kwargs):
         self._backend_objects = dict(scene=pythreejs.Scene())
diff --git a/plato/draw/pythreejs/Spheres.py b/plato/draw/pythreejs/Spheres.py
index 9d5cf6f..5eda71b 100644
--- a/plato/draw/pythreejs/Spheres.py
+++ b/plato/draw/pythreejs/Spheres.py
@@ -1,10 +1,12 @@
 import itertools
+
+import numpy as np
+
 from ... import draw
 from ...geometry import fibonacciPositions
 from ... import mesh
 from .internal import ThreeJSPrimitive
 from ..internal import ShapeAttribute, ShapeDecorator
-import numpy as np
 
 @ShapeDecorator
 class Spheres(draw.Spheres, ThreeJSPrimitive):
diff --git a/plato/draw/pythreejs/internal.py b/plato/draw/pythreejs/internal.py
index 56ef777..180e595 100644
--- a/plato/draw/pythreejs/internal.py
+++ b/plato/draw/pythreejs/internal.py
@@ -1,7 +1,8 @@
-from ... import math
 import numpy as np
 import pythreejs
 
+from ... import math
+
 class ThreeJSPrimitive:
     @property
     def threejs_primitive(self):
diff --git a/plato/draw/vispy/ConvexPolyhedra.py b/plato/draw/vispy/ConvexPolyhedra.py
index 85df61c..0248bb0 100644
--- a/plato/draw/vispy/ConvexPolyhedra.py
+++ b/plato/draw/vispy/ConvexPolyhedra.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/ConvexSpheropolyhedra.py b/plato/draw/vispy/ConvexSpheropolyhedra.py
index 693ff1e..a6538cb 100644
--- a/plato/draw/vispy/ConvexSpheropolyhedra.py
+++ b/plato/draw/vispy/ConvexSpheropolyhedra.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/DiskUnions.py b/plato/draw/vispy/DiskUnions.py
index b37e659..3f7484e 100644
--- a/plato/draw/vispy/DiskUnions.py
+++ b/plato/draw/vispy/DiskUnions.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Disks.py b/plato/draw/vispy/Disks.py
index 3797b50..925e14f 100644
--- a/plato/draw/vispy/Disks.py
+++ b/plato/draw/vispy/Disks.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Ellipsoids.py b/plato/draw/vispy/Ellipsoids.py
index 4352de8..3ddc985 100644
--- a/plato/draw/vispy/Ellipsoids.py
+++ b/plato/draw/vispy/Ellipsoids.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from .Spheres import Spheres
diff --git a/plato/draw/vispy/Lines.py b/plato/draw/vispy/Lines.py
index 21f7c7e..9f5d241 100644
--- a/plato/draw/vispy/Lines.py
+++ b/plato/draw/vispy/Lines.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Mesh.py b/plato/draw/vispy/Mesh.py
index 8fe0b03..b9f9054 100644
--- a/plato/draw/vispy/Mesh.py
+++ b/plato/draw/vispy/Mesh.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Polygons.py b/plato/draw/vispy/Polygons.py
index 973538d..fa2642b 100644
--- a/plato/draw/vispy/Polygons.py
+++ b/plato/draw/vispy/Polygons.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import geometry
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
diff --git a/plato/draw/vispy/Scene.py b/plato/draw/vispy/Scene.py
index 39958bc..2bddb29 100644
--- a/plato/draw/vispy/Scene.py
+++ b/plato/draw/vispy/Scene.py
@@ -1,8 +1,10 @@
 import logging
+
+import numpy as np
 import vispy.io
+
 from .Canvas import Canvas
 from ... import draw
-import numpy as np
 from ..Scene import DEFAULT_DIRECTIONAL_LIGHTS
 
 logger = logging.getLogger(__name__)
diff --git a/plato/draw/vispy/SpherePoints.py b/plato/draw/vispy/SpherePoints.py
index f8d57d1..2a624ea 100644
--- a/plato/draw/vispy/SpherePoints.py
+++ b/plato/draw/vispy/SpherePoints.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
 from ..internal import ShapeAttribute
diff --git a/plato/draw/vispy/SphereUnions.py b/plato/draw/vispy/SphereUnions.py
index ce14b0a..3645c52 100644
--- a/plato/draw/vispy/SphereUnions.py
+++ b/plato/draw/vispy/SphereUnions.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Spheres.py b/plato/draw/vispy/Spheres.py
index 9bb1103..bad62b4 100644
--- a/plato/draw/vispy/Spheres.py
+++ b/plato/draw/vispy/Spheres.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Spheropolygons.py b/plato/draw/vispy/Spheropolygons.py
index c360d5a..3527b40 100644
--- a/plato/draw/vispy/Spheropolygons.py
+++ b/plato/draw/vispy/Spheropolygons.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/Voronoi.py b/plato/draw/vispy/Voronoi.py
index d3c97e5..300bc0f 100644
--- a/plato/draw/vispy/Voronoi.py
+++ b/plato/draw/vispy/Voronoi.py
@@ -1,5 +1,7 @@
 import itertools
+
 import numpy as np
+
 from ... import mesh
 from .internal import GLPrimitive, GLShapeDecorator
 from ... import draw
diff --git a/plato/draw/vispy/internal.py b/plato/draw/vispy/internal.py
index 41d361a..1f55f35 100644
--- a/plato/draw/vispy/internal.py
+++ b/plato/draw/vispy/internal.py
@@ -1,8 +1,10 @@
 import functools
 import itertools
+
 import numpy as np
 import vispy, vispy.app
 from vispy import gloo
+
 from ... import mesh
 from ..internal import array_size_checkers, ATTRIBUTE_DOCSTRING_TEMPLATE
 from ..Scene import DEFAULT_DIRECTIONAL_LIGHTS
diff --git a/plato/draw/zdog/Scene.py b/plato/draw/zdog/Scene.py
index d6b1359..b758f8a 100644
--- a/plato/draw/zdog/Scene.py
+++ b/plato/draw/zdog/Scene.py
@@ -1,7 +1,8 @@
-from ... import draw
 import numpy as np
 import rowan
 
+from ... import draw
+
 LOCAL_HELPER_SCRIPT = """
 let is_in_view = function(elt) {
     let bounding_rect = elt.getBoundingClientRect();
diff --git a/plato/draw/zdog/Spheres.py b/plato/draw/zdog/Spheres.py
index 14460f0..cc963cb 100644
--- a/plato/draw/zdog/Spheres.py
+++ b/plato/draw/zdog/Spheres.py
@@ -1,6 +1,8 @@
 import collections
 import itertools
+
 import numpy as np
+
 from ... import draw, mesh
 from ...draw import internal
 
diff --git a/plato/draw/zdog/internal.py b/plato/draw/zdog/internal.py
index 850dd6f..62c7b8f 100644
--- a/plato/draw/zdog/internal.py
+++ b/plato/draw/zdog/internal.py
@@ -1,5 +1,6 @@
 import numpy as np
 import rowan
+
 from ... import geometry, mesh
 
 class PolyhedronRenderer:
diff --git a/plato/imp.py b/plato/imp.py
index 650bf45..f21ff79 100644
--- a/plato/imp.py
+++ b/plato/imp.py
@@ -24,9 +24,10 @@
 """
 import functools
 import importlib
-import plato.draw as draw
 import sys
 
+from . import draw
+
 _pending_primitives = []
 _last_scene = None
 _used_vispy_backend = None
diff --git a/plato/mesh.py b/plato/mesh.py
index eb0692d..7664791 100644
--- a/plato/mesh.py
+++ b/plato/mesh.py
@@ -1,6 +1,7 @@
 
 from collections import defaultdict, namedtuple
 from itertools import repeat
+
 import numpy as np
 
 from .geometry import convexHull, insetPolygon, massProperties, Polygon