Merge fd67ab6 into ddb43f1

tox.ini

@@ -17,10 +17,11 @@
 [tox]
 envlist = py36, py37, py38, py39, py310-dev, pypy3, mypy, build
 skip_missing_interpreters = True
+isolated_build = True
 requires =
     pip>=20.3.3
     tox-envlist>=0.1.0
-isolated_build = True
+    tox-pip-version==0.0.7
 
 [envlists]
 test = py36, py37, py38, py39, py310-dev, pypy3
@@ -48,11 +49,10 @@ commands =
 [testenv:docs]
 setenv = SHOW_TODOS = 1
 basepython = python3.8
+pip_version = pip>=21
 changedir = {toxinidir}/doc-source
 extras = all
-deps =
-    -r{toxinidir}/requirements.txt
-    -r{toxinidir}/doc-source/requirements.txt
+deps = -r{toxinidir}/doc-source/requirements.txt
 commands = sphinx-build -M html . ./build {posargs}
 
 [testenv:build]
@@ -84,6 +84,7 @@ deps =
     flake8-sphinx-links>=0.0.4
     flake8-strftime>=0.1.1
     flake8-typing-imports>=1.10.0
+    flake8-encodings>=0.1.0
     git+https://github.com/PyCQA/pydocstyle@5118faa7173b0e5bbc230c4adf628758e13605bf
     git+https://github.com/domdfcoding/flake8-quotes.git
     git+https://github.com/domdfcoding/flake8-rst-docstrings.git