Added type annotations

Closes agronholm#138.
vamega · Sep 4, 2023 · 53e2106 · 53e2106
1 parent f350941
commit 53e2106
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diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
@@ -26,6 +26,14 @@ repos:
     hooks:
       - id: black
 
+  - repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.5.1
+    hooks:
+      - id: mypy
+        additional_dependencies:
+          - pytest
+        files: cbor2/.+
+
   - repo: https://github.com/pre-commit/pygrep-hooks
     rev: v1.10.0
     hooks:

diff --git a/cbor2/__init__.py b/cbor2/__init__.py
@@ -27,7 +27,7 @@
     # variants, but we still need to create the encoder dictionaries for the C
     # variant here (this is much simpler than doing so in C, and doesn't affect
     # overall performance as it's a one-off initialization cost).
-    def _init_cbor2():
+    def _init_cbor2() -> None:
         from collections import OrderedDict
 
         import _cbor2