all python files are now formated with black (#106)

* all python files are now formated with black

NOTE:
some configurations where necessary. flake8 line-length has to be set to 88
which is the default for black. but this was not enough some lines of black
where formated longer then 88 characters. found flake8-bugbear with B950.

with that and in combination with ignore=E501 it is possible to ignore long
lines, but if there are lines to long it will still point it out.

further also for isort some configuration was necessary

REFERENCES:
https://github.com/psf/black/blob/master/docs/compatible_configs.md#isort
https://github.com/psf/black/blob/master/docs/compatible_configs.md#flake8
https://github.com/PyCQA/flake8-bugbear#opinionated-warnings

* removed commented import statments

Co-authored-by: Christoph Ladurner <christoph.ladurner@tugraz.at>

invenio_theme_tugraz/webpack.py

@@ -10,17 +10,15 @@ from invenio_assets.webpack import WebpackThemeBundle
 
 theme = WebpackThemeBundle(
     __name__,
-    'assets',
-    default='semantic-ui',
+    "assets",
+    default="semantic-ui",
     themes={
-        'semantic-ui': dict(
+        "semantic-ui": dict(
             entry={
-                'invenio-theme-tugraz-theme':
-                    './less/invenio_theme_tugraz/theme.less',
-                'invenio-theme-tugraz-js':
-                    './js/invenio_theme_tugraz/theme.js'
+                "invenio-theme-tugraz-theme": "./less/invenio_theme_tugraz/theme.less",
+                "invenio-theme-tugraz-js": "./js/invenio_theme_tugraz/theme.js",
             },
-            dependencies={}
+            dependencies={},
         )
-    }
+    },
 )