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

# Conflicts:
#	tox.ini

.coveragerc

@@ -2,7 +2,8 @@
 omit =
 	# leading `*/` for pytest-dev/pytest-cov#456
 	*/.tox/*
-	*/pep517-build-env-*
+disable_warnings =
+	couldnt-parse
 
 [report]
 show_missing = True

pytest.ini

@@ -1,8 +1,9 @@
 [pytest]
 norecursedirs=dist build .tox .eggs
 addopts=--doctest-modules
-doctest_optionflags=ALLOW_UNICODE ELLIPSIS
 filterwarnings=
+	## upstream
+
 	# Ensure ResourceWarnings are emitted
 	default::ResourceWarning
 
@@ -18,3 +19,14 @@ filterwarnings=
 	ignore:<class 'pytest_flake8.Flake8Item'> is not using a cooperative constructor:pytest.PytestDeprecationWarning
 	ignore:The \(fspath. py.path.local\) argument to Flake8Item is deprecated.:pytest.PytestDeprecationWarning
 	ignore:Flake8Item is an Item subclass and should not be a collector:pytest.PytestWarning
+
+	# shopkeep/pytest-black#67
+	ignore:'encoding' argument not specified::pytest_black
+
+	# realpython/pytest-mypy#152
+	ignore:'encoding' argument not specified::pytest_mypy
+
+	# python/cpython#100750
+	ignore:'encoding' argument not specified::platform
+
+	## end upstream

tox.ini

@@ -8,13 +8,15 @@ toxworkdir={env:TOX_WORK_DIR:.tox}
 
 [testenv]
 deps =
-commands =
-	pytest {posargs}
-usedevelop = True
-extras = testing
 setenv =
+	PYTHONWARNDEFAULTENCODING = 1
 	# required for github.username()
 	GITHUB_USERNAME = jaraco
+commands =
+	pytest {posargs}
+usedevelop = True
+extras =
+	testing
 
 [testenv:docs]
 extras =