Black formatting of existing code and inclusion of formatting check in workflow

.github/workflows/check_formatting.yml

@@ -0,0 +1,14 @@
+name: check_formatting
+on: [push, pull_request]
+jobs:
+  formatting_job:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.8'
+      - run: pip install .
+      - run: pip install black
+      - run: black tobac --check
+

setup.py

@@ -1,12 +1,14 @@
 from setuptools import setup
 
-setup(name='tobac',
-      version='1.2',
-      description='Tracking and object-based analysis of clouds',
-      url='http://github.com/climate-processes/tobac',
-      author='Max Heikenfeld',
-      author_email='max.heikenfeld@physics.ox.ac.uk',
-      license='GNU',
-      packages=['tobac'],
-      install_requires=[],
-      zip_safe=False)
+setup(
+    name="tobac",
+    version="1.2",
+    description="Tracking and object-based analysis of clouds",
+    url="http://github.com/climate-processes/tobac",
+    author="Max Heikenfeld",
+    author_email="max.heikenfeld@physics.ox.ac.uk",
+    license="GNU",
+    packages=["tobac"],
+    install_requires=[],
+    zip_safe=False,
+)

tobac/__init__.py

@@ -1,23 +1,63 @@
-#from .tracking import maketrack
-from .segmentation import segmentation_3D, segmentation_2D,watershedding_3D,watershedding_2D
-from .centerofgravity import calculate_cog,calculate_cog_untracked,calculate_cog_domain
-from .plotting import plot_tracks_mask_field,plot_tracks_mask_field_loop,plot_mask_cell_track_follow,plot_mask_cell_track_static,plot_mask_cell_track_static_timeseries
-from .plotting import plot_lifetime_histogram,plot_lifetime_histogram_bar,plot_histogram_cellwise,plot_histogram_featurewise
-from .plotting import plot_mask_cell_track_3Dstatic,plot_mask_cell_track_2D3Dstatic
-from .plotting import plot_mask_cell_individual_static,plot_mask_cell_individual_3Dstatic
+# from .tracking import maketrack
+from .segmentation import (
+    segmentation_3D,
+    segmentation_2D,
+    watershedding_3D,
+    watershedding_2D,
+)
+from .centerofgravity import (
+    calculate_cog,
+    calculate_cog_untracked,
+    calculate_cog_domain,
+)
+from .plotting import (
+    plot_tracks_mask_field,
+    plot_tracks_mask_field_loop,
+    plot_mask_cell_track_follow,
+    plot_mask_cell_track_static,
+    plot_mask_cell_track_static_timeseries,
+)
+from .plotting import (
+    plot_lifetime_histogram,
+    plot_lifetime_histogram_bar,
+    plot_histogram_cellwise,
+    plot_histogram_featurewise,
+)
+from .plotting import plot_mask_cell_track_3Dstatic, plot_mask_cell_track_2D3Dstatic
+from .plotting import (
+    plot_mask_cell_individual_static,
+    plot_mask_cell_individual_3Dstatic,
+)
 from .plotting import animation_mask_field
 from .plotting import make_map, map_tracks
-from .analysis import cell_statistics,cog_cell,lifetime_histogram,histogram_featurewise,histogram_cellwise
-from .analysis import calculate_velocity,calculate_distance,calculate_area
+from .analysis import (
+    cell_statistics,
+    cog_cell,
+    lifetime_histogram,
+    histogram_featurewise,
+    histogram_cellwise,
+)
+from .analysis import calculate_velocity, calculate_distance, calculate_area
 from .analysis import calculate_nearestneighbordistance
-from .analysis import velocity_histogram,nearestneighbordistance_histogram,area_histogram
+from .analysis import (
+    velocity_histogram,
+    nearestneighbordistance_histogram,
+    area_histogram,
+)
 from .analysis import calculate_overlap
-from .utils import mask_cell,mask_cell_surface,mask_cube_cell,mask_cube_untracked,mask_cube,column_mask_from2D,get_bounding_box
-from .utils import mask_features,mask_features_surface,mask_cube_features
+from .utils import (
+    mask_cell,
+    mask_cell_surface,
+    mask_cube_cell,
+    mask_cube_untracked,
+    mask_cube,
+    column_mask_from2D,
+    get_bounding_box,
+)
+from .utils import mask_features, mask_features_surface, mask_cube_features
 
-from .utils import add_coordinates,get_spacings
+from .utils import add_coordinates, get_spacings
 from .feature_detection import feature_detection_multithreshold
 from .tracking import linking_trackpy
 from .wrapper import maketrack
 from .wrapper import tracking_wrapper
-