[requires.io] dependency update

Author: requires

tox.ini

@@ -47,21 +47,22 @@ basepython =
 deps =
     {[default]deps}
 
-    # In Python 2, we need to pull in typing
-    {py26,py27}: typing==3.7.4.1
+    # In Python 2, we need to pull in typing, mock
+    py{26,27,py2}: typing==3.7.4.1
+    py{26,27,py2}: mock==3.0.5  # rq.filter: <4
 
     # For pytest
-    {py26,py27,py34}: pytest==4.6.11
-    {py35,py36,py37,py38}: pytest==5.2.4
+    py{26,27,34,py2}: pytest==4.6.11  # rq.filter: <5
+    py{35,36,37,38,39,py3}: pytest==5.2.4
 
     # For code coverage
     {[testenv:coverage_report]deps}
-    pytest-cov==2.10.0
+    py{26,27,34,py2}: pytest-cov==2.8.1  # rq.filter: <2.9
+    py{35,36,37,38,39,py3}: pytest-cov==2.10.0
 
     # For hypothesis. Note Python 3.4 isn't supported by hypothesis.
-    py27: hypothesis==4.43.9
-    {py35,py36,py37,py38,py39,py2,py3}: hypothesis==5.8.6
-    py27: mock==4.0.2
+    py{26,27,py2}: hypothesis==4.43.9  # rq.filter: <4.44
+    py{35,36,37,38,39,py3}: hypothesis==5.8.6
 
 setenv =
     {[default]setenv}
@@ -94,7 +95,7 @@ setenv =
     BLACK_LINT_ARGS=--check
 
 commands =
-    black {env:BLACK_LINT_ARGS:} setup.py src
+    black {env:BLACK_LINT_ARGS:} {posargs:setup.py src}
 
 
 [testenv:black-reformat]
@@ -129,7 +130,7 @@ deps =
     git+git://github.com/PyCQA/pyflakes@ffe9386#egg=pyflakes
 
 commands =
-    flake8 {posargs:src/{env:PY_MODULE}}
+    flake8 {posargs:setup.py src/{env:PY_MODULE}}
 
 
 [flake8]
@@ -239,7 +240,7 @@ ignore_missing_imports = True
 
 description = generate coverage report
 
-depends = test-py{26,27,34,35,36,37,38,py,py3}
+depends = test-py{26,27,34,35,36,37,38,39,py2,py3}
 
 basepython = {[default]basepython}