Cleanup Python project

tox.ini

@@ -1,14 +1,43 @@
 [tox]
-envlist = py27, py34, py35, py36
+envlist = lint,manifest,py27,py35,py36,py37,docs,coverage-report
+
 
 [testenv]
-deps = pipenv
-commands=
-    pipenv install --dev --skip-lock
-    pytest tests/ {posargs}
+# Prevent random setuptools/pip breakages like
+# https://github.com/pypa/setuptools/issues/1042 from breaking our builds.
+setenv =
+    VIRTUALENV_NO_DOWNLOAD=1
+extras = {env:TOX_AP_TEST_EXTRAS:tests}
+commands = coverage run --parallel -m pytest {posargs}
 
-[testenv:py27]
-basepython = python2.7
-deps =
-    {[testenv]deps}
-    funcsigs
+
+[testenv:coverage-report]
+basepython = python3.7
+skip_install = true
+deps = coverage
+commands =
+    coverage combine
+    coverage report
+
+
+[testenv:lint]
+basepython = python3.7
+skip_install = true
+deps = pre-commit
+passenv = HOMEPATH  # needed on Windows
+commands = pre-commit run --all-files
+
+
+[testenv:docs]
+basepython = python3.7
+extras = docs
+commands =
+    sphinx-build -W -b html -d {envtmpdir}/doctrees docs/source docs/_build/html
+    ;sphinx-build -W -b doctest -d {envtmpdir}/doctrees docs/source docs/_build/html
+
+
+[testenv:manifest]
+basepython = python3.7
+deps = check-manifest
+skip_install = true
+commands = check-manifest