Add flake8-import-order and zimports

.travis.sh

@@ -36,6 +36,10 @@ set -x
 pip_install -U black
 black --check .
 
+# flake8
+pip install -U flake8 zimports
+flake8 .
+
 # mypy
 if [ "$PYTHON_VERSION32" = "3" ]; then
   pip_install -U mypy

examples/io_examples/pyglet_threaded_image_viewer.py

@@ -1,9 +1,9 @@
 #!/usr/bin/env python
 
-import imgviz
-
 from pyglet_imshow import get_images
 
+import imgviz
+
 
 def main():
     viewer = imgviz.io.PygletThreadedImageViewer(play=True)

imgviz/__init__.py

@@ -4,34 +4,32 @@
 
 # -----------------------------------------------------------------------------
 
+from . import _io as io
 from . import data
-
 from . import draw
-
-from . import _io as io
-
-# -----------------------------------------------------------------------------
-
-# visualization targets
+from .centerize import centerize
 from .color import asgray
 from .color import gray2rgb
+from .color import hsv2rgb
 from .color import rgb2gray
-from .color import rgb2rgba
 from .color import rgb2hsv
+from .color import rgb2rgba
 from .color import rgba2rgb
-from .color import hsv2rgb
 from .depth import Depth2RGB
 from .depth import depth2rgb
 from .flow import flow2rgb
 from .instances import instances2rgb
-from .label import label_colormap
 from .label import label2rgb
+from .label import label_colormap
 from .nchannel import Nchannel2RGB
 from .nchannel import nchannel2rgb
-from .trajectory import plot_trajectory
-
-# visualization operations
-from .centerize import centerize
 from .normalize import normalize
 from .resize import resize
 from .tile import tile
+from .trajectory import plot_trajectory
+
+# -----------------------------------------------------------------------------
+
+# visualization targets
+
+# visualization operations

imgviz/_io/__init__.py

@@ -1,13 +1,10 @@
 # flake8: noqa
 
+from ._pyglet import pyglet_imshow
+from ._pyglet import pyglet_run
+from ._pyglet import PygletThreadedImageViewer
 from .base import imread
 from .base import imsave
-
 from .opencv import cv_imshow
 from .opencv import cv_waitkey
-
 from .pyplot import pyplot_to_numpy
-
-from ._pyglet import pyglet_imshow
-from ._pyglet import pyglet_run
-from ._pyglet import PygletThreadedImageViewer

imgviz/_io/_pyglet/__init__.py

@@ -1,9 +1,7 @@
 # flake8: noqa
 
 from .base import check_pyglet_available
-
 from .pyglet_imshow import pyglet_imshow
-
 from .pyglet_run import pyglet_run
 
 try:

imgviz/_io/opencv.py

@@ -2,7 +2,7 @@
     import cv2
 except ImportError:
     cv2 = None
-import numpy as np  # NOQA
+import numpy as np
 
 
 def check_cv2_available():

imgviz/data/__init__.py

@@ -1,11 +1,7 @@
 # flake8: noqa
 
 from .arc2017 import arc2017
-
+from .kitti import kitti_odometry
 from .lena import lena
-
 from .middlebury import middlebury
-
-from .kitti import kitti_odometry
-
 from .voc import voc

imgviz/external/transformations.py

@@ -197,7 +197,8 @@
 
 """
 
-from __future__ import division, print_function
+from __future__ import division
+from __future__ import print_function
 
 import math
 

imgviz/nchannel.py

@@ -1,7 +1,7 @@
-from . import normalize
-
 import numpy as np
 
+from . import normalize
+
 
 class Nchannel2RGB(object):
 

imgviz/resize.py

@@ -1,11 +1,11 @@
+import numpy as np
+import PIL.Image
+
 try:
     import cv2
 except ImportError:
     cv2 = None
 
-import numpy as np
-import PIL.Image
-
 
 def _resize_pillow(src, height, width, interpolation):
     if interpolation == "linear":

setup.cfg

@@ -2,5 +2,7 @@
 license_file = LICENSE
 
 [flake8]
-exclude = .eggs,*.egg,build,.anaconda*,src,imgviz/external
+exclude = .eggs, *.egg, build/ , .anaconda*/, src/, docs/, imgviz/external/
 ignore = E203, W503, W504
+import-order-style: google
+application-import-names = imgviz

setup.py

@@ -1,16 +1,16 @@
 from __future__ import print_function
 
+import distutils.spawn
 import os
 import os.path as osp
 import re
-
-import distutils.spawn
-from setuptools import find_packages
-from setuptools import setup
 import shlex
 import subprocess
 import sys
 
+from setuptools import find_packages
+from setuptools import setup
+
 
 def get_version():
     filename = "imgviz/__init__.py"