Drop Python 3.6

.github/workflows/ci.yml

@@ -14,18 +14,16 @@ jobs:
       matrix:
         include:
           - python: '^3.10'
-            os: ubuntu-latest
-          - python: '3.10'
             os: macos-latest
-          - python: 3.9
+          - python: '3.10'
             os: windows-latest
-          - python: 3.8
+          - python: 3.9
             os: ubuntu-latest
-          - python: 3.7
+          - python: 3.8
             os: macos-latest
-          - python: 3.6
+          - python: 3.7
             os: windows-latest
-          - python: 3.6
+          - python: 3.7
             os: ubuntu-latest
             versions: minimal
     runs-on: ${{matrix.os}}

mkdocs_section_index/__init__.py

@@ -1,4 +1,4 @@
-from typing import List, Union
+from __future__ import annotations
 
 from mkdocs.config import Config
 from mkdocs.structure.files import File
@@ -10,7 +10,7 @@
 
 class SectionPage(Section, Page):  # type: ignore[misc]
     def __init__(
-        self, title: str, file: File, config: Config, children: List[Union[Page, Section, Link]]
+        self, title: str, file: File, config: Config, children: list[Page | Section | Link]
     ):
         Page.__init__(self, title=title, file=file, config=config)
         Section.__init__(self, title=title, children=children)

mkdocs_section_index/plugin.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import collections
 import logging
 

mkdocs_section_index/rewrites.py

@@ -1,7 +1,9 @@
+from __future__ import annotations
+
 import logging
 import pathlib
 import textwrap
-from typing import Callable, Optional, Tuple
+from typing import Callable
 
 import mkdocs.utils
 from jinja2 import BaseLoader, Environment
@@ -20,8 +22,8 @@ def __init__(self, loader: BaseLoader):
 
     def get_source(
         self, environment: Environment, template: str
-    ) -> Tuple[str, str, Optional[Callable[[], bool]]]:
-        src: Optional[str]
+    ) -> tuple[str, str, Callable[[], bool] | None]:
+        src: str | None
         src, filename, uptodate = self.loader.get_source(environment, template)
         old_src = src
         assert filename is not None
@@ -48,7 +50,7 @@ def get_source(
         return src or old_src, filename, uptodate
 
 
-def _transform_mkdocs_sitemap_template(src: str) -> Optional[str]:
+def _transform_mkdocs_sitemap_template(src: str) -> str | None:
     if " in pages " not in src:
         # The below only for versions <= 1.1.2.
         return src.replace(
@@ -124,7 +126,7 @@ def _transform_readthedocs_base_template(src: str) -> str:
     return "\n".join(lines)
 
 
-def _replace_line(line: str, wrapper: str, new_line: Optional[str] = None) -> str:
+def _replace_line(line: str, wrapper: str, new_line: str | None = None) -> str:
     leading_space = line[: -len(line.lstrip())]
     if new_line is None:
         new_line = line.lstrip()

pyproject.toml

@@ -12,7 +12,7 @@ readme = "README.md"
 section-index = "mkdocs_section_index.plugin:SectionIndexPlugin"
 
 [tool.poetry.dependencies]
-python = "^3.6"
+python = "^3.7"
 mkdocs = "^1.1"
 dataclasses = {version = ">=0.7, <1.0", python = "<3.7"}
 
@@ -24,7 +24,7 @@ MechanicalSoup = ">=0.12.0, <1.0"
 black = ">=20.8b1"
 isort = "^5.6.4"
 autoflake = "^1.4"
-pytype = {version = ">=2021.04.15", markers = "python_version>='3.6' and python_version<'3.10' and sys_platform!='win32'"}  # Skip on Windows
+pytype = {version = ">=2021.04.15", markers = "python_version>='3.7' and python_version<'3.10' and sys_platform!='win32'"}  # Skip on Windows
 mkdocs-material = ">=6.1.5"
 
 [tool.black]