Update tox

.gitlab-ci.yml

@@ -33,7 +33,7 @@ linter:
 
 tests:
   stage: test
-  image: python:3.7
+  image: python:3
 
   cache:
     paths:
@@ -49,11 +49,11 @@ tests:
     - pip install tox
 
   script:
-    - tox -e py37-unit
+    - tox
 
 release-pypi:
   stage: release
-  image: python:3.7
+  image: python:3
   only:
     - tags
   environment:

.pre-commit-config.yaml

@@ -44,6 +44,3 @@ repos:
   - repo: meta
     hooks:
       - id: check-useless-excludes
-
-default_language_version:
-  python: python3.7

tox.ini

 [tox]
-envlist = py37-unit
+envlist = toolbox
 
-[testenv:py37-unit]
+[testenv]
 commands =
   pytest