Bump mypy version and Python runtime

.github/workflows/flake8.yml

@@ -35,7 +35,7 @@ jobs:
         if: steps.changes.outputs.code == 'true'
         uses: "actions/setup-python@v5"
         with:
-          python-version: "3.6"
+          python-version: "3.8"
 
       - name: Install dependencies 🔧
         if: steps.changes.outputs.code == 'true'

.github/workflows/mypy.yml

@@ -40,7 +40,7 @@ jobs:
         if: steps.changes.outputs.code == 'true'
         uses: "actions/setup-python@v5"
         with:
-          python-version: "3.6"
+          python-version: "3.8"
 
       - name: Install dependencies 🔧
         run: |

pyproject.toml

@@ -126,7 +126,7 @@ autodoc_exclude_members = [
 ]
 
 [tool.mypy]
-python_version = "3.6"
+python_version = "3.8"
 namespace_packages = true
 check_untyped_defs = true
 warn_unused_ignores = true

repo_helper.yml

@@ -12,10 +12,10 @@ license: 'BSD'
 short_desc: 'Enhanced Sphinx TocTree which shows classes, functions etc. as if they were sections.'
 
 use_whey: True
-python_deploy_version: 3.6
+python_deploy_version: 3.8
 preserve_custom_theme: true
 docs_fail_on_warning: true
-mypy_version: 0.942
+mypy_version: "1.8.0"
 
 conda_channels:
  - conda-forge

tox.ini

@@ -59,7 +59,7 @@ test =
     pypy38
     pypy39
 qa = mypy, lint
-cov = py36, coverage
+cov = py38, coverage
 
 [testenv]
 setenv =
@@ -112,7 +112,7 @@ commands =
     check-wheel-contents dist/
 
 [testenv:lint]
-basepython = python3.6
+basepython = python3.8
 changedir = {toxinidir}
 ignore_errors = True
 skip_install = True
@@ -142,33 +142,33 @@ deps =
 commands = python3 -m flake8_rst_docstrings_sphinx sphinxcontrib/toctree_plus tests --allow-toolbox {posargs}
 
 [testenv:perflint]
-basepython = python3.6
+basepython = python3.8
 changedir = {toxinidir}
 ignore_errors = True
 skip_install = True
 deps = perflint
 commands = python3 -m perflint sphinxcontrib.toctree_plus {posargs}
 
 [testenv:mypy]
-basepython = python3.6
+basepython = python3.8
 ignore_errors = True
 changedir = {toxinidir}
 deps =
-    mypy==0.942
+    mypy==1.8.0
     -r{toxinidir}/tests/requirements.txt
     types-docutils
 commands = mypy sphinxcontrib/toctree_plus tests {posargs}
 
 [testenv:pyup]
-basepython = python3.6
+basepython = python3.8
 skip_install = True
 ignore_errors = True
 changedir = {toxinidir}
 deps = pyupgrade-directories
 commands = pyup_dirs sphinxcontrib/toctree_plus tests --py36-plus --recursive
 
 [testenv:coverage]
-basepython = python3.6
+basepython = python3.8
 skip_install = True
 ignore_errors = True
 whitelist_externals = /bin/bash