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, 4 insertions, 0 deletions

diff --git a/plugins/template/tests/test_myplugin.py b/plugins/template/tests/test_myplugin.py
index d61181a6..dc3677da 100644
--- a/plugins/template/tests/test_myplugin.py
+++ b/plugins/template/tests/test_myplugin.py
@@ -2,6 +2,7 @@
 # coding=utf-8
 
 import cmd2_myplugin
+
 from cmd2 import cmd2
 
 ######
@@ -13,6 +14,7 @@ from cmd2 import cmd2
 
 class MyApp(cmd2_myplugin.MyPluginMixin, cmd2.Cmd):
     """Simple subclass of cmd2.Cmd with our SayMixin plugin included."""
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
@@ -20,6 +22,7 @@ class MyApp(cmd2_myplugin.MyPluginMixin, cmd2.Cmd):
     def do_empty(self, args):
         self.poutput("running the empty command")
 
+
 #
 # You can't use a fixture to instantiate your app if you want to use
 # to use the capsys fixture to capture the output. cmd2.Cmd sets
@@ -43,6 +46,7 @@ def init_app():
 #
 #####
 
+
 def test_say(capsys):
     # call our initialization function instead of using a fixture
     app = init_app()