Adds pre-commit config to run various lintersci_improvements

This ads black, isort, pyupgrade, and flake8 to pre-commit-config.yaml
There are also some small changes to travis.yml and tasks.py to reduce
some repeated configurations that should be consolidated into
setup.cfg. Most other changes are automated by the linter scripts.

1 files changed, 10 insertions, 17 deletions

diff --git a/noxfile.py b/noxfile.py
index a46c008e..67cbed08 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -3,23 +3,19 @@ import nox
 
 @nox.session(python=['3.7'])
 def docs(session):
-    session.install('sphinx',
-                    'sphinx-rtd-theme',
-                    '.',
-                    'plugins/ext_test',
-                    )
+    session.install(
+        'sphinx', 'sphinx-rtd-theme', '.', 'plugins/ext_test',
+    )
     session.chdir('docs')
     tmpdir = session.create_tmp()
 
-    session.run('sphinx-build', '-a', '-W', '-T', '-b', 'html',
-                '-d', '{}/doctrees'.format(tmpdir), '.', '{}/html'.format(tmpdir))
+    session.run(
+        'sphinx-build', '-a', '-W', '-T', '-b', 'html', '-d', '{}/doctrees'.format(tmpdir), '.', '{}/html'.format(tmpdir)
+    )
 
 
 @nox.session(python=['3.5.2', '3.5.3', '3.5', '3.6', '3.7', '3.8', '3.9'])
-@nox.parametrize('plugin', [None,
-                            'ext_test',
-                            'template',
-                            'coverage'])
+@nox.parametrize('plugin', [None, 'ext_test', 'template', 'coverage'])
 def tests(session, plugin):
     if plugin is None:
         session.install('invoke', './[test]')
@@ -33,9 +29,6 @@ def tests(session, plugin):
         session.install('invoke', './', 'plugins/{}[test]'.format(plugin))
 
         # cd into test directory to run other unit test
-        session.run('invoke',
-                    'plugin.{}.pytest'.format(plugin.replace('_', '-')),
-                    '--junit',
-                    '--no-pty',
-                    '--append-cov',
-                    )
+        session.run(
+            'invoke', 'plugin.{}.pytest'.format(plugin.replace('_', '-')), '--junit', '--no-pty', '--append-cov',
+        )