Sync up a bit with Klein

Author: wsanchez

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 
 envlist =
-    flake8, mypy, black
+    flake8, black, mypy
     test-py{26,27,34,35,36,37,38,39,py2,py3}
     coverage_report
     docs
@@ -32,6 +32,8 @@ setenv =
 description = run tests
 
 basepython =
+    py: python
+
     py26: python2.6
     py27: python2.7
     py34: python3.4
@@ -40,6 +42,7 @@ basepython =
     py37: python3.7
     py38: python3.8
     py39: python3.9
+    py310: python3.10
 
     pypy2: pypy
     pypy3: pypy3
@@ -292,7 +295,7 @@ passenv =
 setenv =
     {[testenv:coverage_report]setenv}
 
-    COVERAGE_XML={envlogdir}/coverage_report.xml
+    COVERAGE_XML={envlogdir}/coverage.xml
 
 commands =
     # Note documentation for CI variables in passenv above
@@ -367,3 +370,21 @@ commands =
    check-manifest
    pip wheel --wheel-dir "{envtmpdir}/dist" --no-deps {toxinidir}
    twine check "{envtmpdir}/dist/"*
+
+
+##
+# Print dependencies
+##
+
+[testenv:dependencies]
+
+description = print dependencies
+
+basepython = {[default]basepython}
+
+recreate = true
+
+deps =
+
+commands =
+    pip freeze --exclude={env:PY_MODULE}