Updated configuration files.

Author: domdfcoding

.pre-commit-config.yaml

@@ -9,7 +9,6 @@ repos:
     - id: check-ast
     - id: check-byte-order-marker
     - id: check-case-conflict
-    - id: check-docstring-first
     - id: check-executables-have-shebangs
     - id: check-json
     - id: check-merge-conflict
@@ -23,9 +22,10 @@ repos:
     - id: mixed-line-ending
 
  - repo: https://github.com/domdfcoding/pre-commit-hooks
-   rev: v0.0.1
+   rev: v0.0.2
    hooks:
     - id: requirements-txt-sorter
+    - id: check-docstring-first
 
  - repo: https://github.com/pre-commit/pygrep-hooks
    rev: v1.5.1

.travis.yml

@@ -13,7 +13,7 @@ python:
 
 install:
 
-  - pip install pip  --upgrade
+  - pip install --upgrade pip
   - pip install tox tox-travis
   - pip install coveralls coverage_pyver_pragma
 

pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
 requires = [
 	"setuptools >= 40.6.0",
-    "wheel >= 0.34.2",
-    ]
+	"wheel >= 0.34.2",
+	]
 build-backend = "setuptools.build_meta"

tox.ini

@@ -3,7 +3,7 @@
 [tox]
 envlist = py36, py37, py38, pypy3, py39-dev, mypy, build
 skip_missing_interpreters = true
-requires = pip >= 19.0.0
+requires = pip>=20.2.1
 isolated_build = true
 
 
@@ -26,7 +26,9 @@ python =
 
 
 [testenv]
-setenv = PYTHONDEVMODE = 1
+setenv =
+	PYTHONDEVMODE = 1
+	PIP_USE_FEATURE=2020-resolver
 # Install test requirements
 deps = -r{toxinidir}/tests/requirements.txt
 commands =