Enable mypy linting

Signed-off-by: Stephen Finucane <stephen@that.guru>

.pre-commit-config.yaml

@@ -19,3 +19,14 @@ repos:
       - id: ruff
         args: [ --fix ]
       - id: ruff-format
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.10.1
+    hooks:
+      - id: mypy
+        exclude: |
+          (?x)(
+            tests/.*
+            | docs/.*
+          )
+        additional_dependencies:
+          - "types-setuptools"

src/wrapt/decorators.py

@@ -512,4 +512,4 @@ def __exit__(self, *args):
     return _FinalDecorator(wrapped=wrapped, wrapper=_synchronized_wrapper)
 
 
-synchronized._synchronized_meta_lock = Lock()
+setattr(synchronized, '_synchronized_meta_lock', Lock())

src/wrapt/importer.py

@@ -6,6 +6,7 @@
 from importlib.util import find_spec
 import sys
 import threading
+from typing import Callable
 
 from .__wrapt__ import ObjectProxy
 
@@ -15,7 +16,7 @@
 # module will be truncated but the list left in the dictionary. This
 # acts as a flag to indicate that the module had already been imported.
 
-_post_import_hooks = {}
+_post_import_hooks: dict[str, list[Callable[[object], object]]] = {}
 _post_import_hooks_init = False
 _post_import_hooks_lock = threading.RLock()
 

src/wrapt/wrappers.py

@@ -337,7 +337,7 @@ def __imod__(self, other):
         self.__wrapped__ %= other
         return self
 
-    def __ipow__(self, other):
+    def __ipow__(self, other, *args):
         self.__wrapped__ **= other
         return self