Upgrade virtualenv, tox when setting up Appveyor (#67)

appveyor.yml

@@ -26,17 +26,14 @@ install:
   # Setup Python test tools
   - "SET STATIC_DEPS=true"
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
-  - "python -m pip install -U pip"
-  - "python -m pip install -U setuptools"
-  - "python -m pip install virtualenv"
-  - "python -m pip install tox"
-  - "python -m pip install codecov"
+  - "python -m pip install -U pip setuptools wheel"
+  - "python -m pip install -U virtualenv tox codecov"
 
 test_script:
   - pip --version
   - virtualenv --version
   - tox --version
-  - python -m tox
+  - tox
 
 after_test:
   - if not ("%TOXENV%" == "lint") if not ("%TOXENV%" == "documents") codecov

tox.ini

@@ -3,29 +3,29 @@ envlist =
     {py27,py34,py35,py36,py37,py38}, lint, documents
 
 [testenv]
-passenv= *
-deps=
+passenv = *
+deps =
     -rrequirements/tests.txt
-commands=
+commands =
     py.test --cov soupsieve --cov-append {toxinidir}
     coverage html -d {envtmpdir}/coverage
     coverage report --show-missing
 
 [testenv:documents]
-passenv= *
-deps=
+passenv = *
+deps =
     -rrequirements/docs.txt
     -rrequirements/project.txt
-commands=
+commands =
     mkdocs build --clean --verbose --strict
     pyspelling
 
 [testenv:lint]
-passenv= *
-deps=
+passenv = *
+deps =
     -rrequirements/project.txt
     -rrequirements/flake8.txt
-commands=
+commands =
     flake8 {toxinidir}
 
 [flake8]