Update mypy

Author: mvanderlee

.pre-commit-config.yaml

@@ -16,18 +16,11 @@ repos:
   - id: flake8
     additional_dependencies: ['flake8-bugbear==22.10.27']
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.13.0
+  rev: v1.14.1
   hooks:
   - id: mypy
     additional_dependencies: [typeguard,marshmallow]
     args: [--show-error-codes]
-# Too many errors. Delaying upgrade to 1.14
-# - repo: https://github.com/pre-commit/mirrors-mypy
-#   rev: v1.14.1
-#   hooks:
-#   - id: mypy
-#     additional_dependencies: [typeguard,marshmallow]
-#     args: [--show-error-codes, --check-untyped-defs]
 - repo: https://github.com/asottile/blacken-docs
   rev: 1.19.1
   hooks:

marshmallow_dataclass2/union_field.py

@@ -1,9 +1,10 @@
 import copy
 import inspect
-from typing import List, Tuple, Any, Optional
+import typing
+from typing import Any, List, Optional, Tuple
 
 import typeguard
-from marshmallow import fields, Schema, ValidationError
+from marshmallow import Schema, ValidationError, fields
 
 try:
     from typeguard import TypeCheckError  # type: ignore[attr-defined]
@@ -43,7 +44,9 @@ def __init__(self, union_fields: List[Tuple[type, fields.Field]], **kwargs):
         super().__init__(**kwargs)
         self.union_fields = union_fields
 
-    def _bind_to_schema(self, field_name: str, schema: Schema) -> None:
+    def _bind_to_schema(
+        self, field_name: str, schema: typing.Union[Schema, fields.Field]
+    ) -> None:
         super()._bind_to_schema(field_name, schema)
         new_union_fields = []
         for typ, field in self.union_fields: