Fix missing __future__ import for Python 3.8

Author: AWhetter

autoapi/extension.py

@@ -3,9 +3,10 @@
 This extension allows you to automagically generate API documentation from your project.
 """
 
+from __future__ import annotations
+
 import os
 import shutil
-from typing import Dict, Tuple
 
 import sphinx
 from sphinx.util.console import colorize
@@ -40,7 +41,7 @@
     "method",
     "attribute",
 ]
-_VIEWCODE_CACHE: Dict[str, tuple[str, dict[str, tuple[str, int, int]]]] = {}
+_VIEWCODE_CACHE: dict[str, tuple[str, dict[str, tuple[str, int, int]]]] = {}
 """Caches a module's parse results for use in viewcode."""
 
 

tests/python/py3example/example/example.py

@@ -189,6 +189,7 @@ def __len__(self):
 
 class InheritBaseError(Exception):
     """The base exception."""
+
     def __init__(self):
         self.my_message = "one"
         """My message."""
@@ -197,6 +198,7 @@ def __init__(self):
 
 class InheritError(InheritBaseError):
     """The middle exception."""
+
     def __init__(self):
         self.my_other_message = "two"
         """My other message."""
@@ -209,6 +211,7 @@ class SubInheritError(InheritError):
 
 class DuplicateInheritError(InheritBaseError):
     """Not the base exception."""
+
     def __init__(self):
         self.my_message = "three"
         super().__init__()