Merge https://github.com/jaraco/skeleton

.travis.yml

@@ -1,4 +1,4 @@
-dist: xenial
+dist: bionic
 language: python
 
 python:
@@ -11,7 +11,7 @@ install:
 - pip install tox tox-venv
 
 before_script:
-  # Disable IPv6. Ref travis-ci/travis-ci#8361
+  # Enable IPv6. Ref travis-ci/travis-ci#8361
   - if [ "${TRAVIS_OS_NAME}" == "linux" ]; then
       sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6';
     fi

pytest.ini

@@ -3,3 +3,5 @@ norecursedirs=dist build .tox .eggs
 addopts=--doctest-modules --flake8 --black --cov
 doctest_optionflags=ALLOW_UNICODE ELLIPSIS
 filterwarnings=
+    # https://github.com/pytest-dev/pytest/issues/6928
+    ignore:direct construction of .*Item has been deprecated:DeprecationWarning

setup.cfg

@@ -13,9 +13,6 @@ classifiers =
 	Programming Language :: Python :: 3
 	Programming Language :: Python :: 3 :: Only
 
-[bdist_wheel]
-python-tag = py36
-
 [options]
 packages = find:
 include_package_data = true
@@ -30,7 +27,7 @@ testing =
 	pytest >= 3.5, !=3.7.3
 	pytest-checkdocs >= 1.2.3
 	pytest-flake8
-	pytest-black-multipy
+	pytest-black >= 0.3.7
 	pytest-cov
 
 	# local

skeleton.md

@@ -120,7 +120,7 @@ Features include:
 
 Features include:
 - test against Python 3
-- run on Ubuntu Xenial
+- run on Ubuntu Bionic
 - correct for broken IPv6
 
 ### AppVeyor