ch01-12: clean up by @eumiro

05-record-like/dataclass/club_generic.py

@@ -1,8 +1,6 @@
 from dataclasses import dataclass, field
-from typing import List                              # <1>
 
 @dataclass
 class ClubMember:
-
     name: str
-    guests: List[str] = field(default_factory=list)  # <2>
+    guests: list[str] = field(default_factory=list)  # <1>

05-record-like/dataclass/hackerclub_annotated.py

@@ -30,13 +30,13 @@ To fix, ``leo2`` must be created with an explicit ``handle``::
 
 # tag::HACKERCLUB[]
 from dataclasses import dataclass
-from typing import ClassVar, Set
+from typing import ClassVar
 from club import ClubMember
 
 @dataclass
 class HackerClubMember(ClubMember):
 
-    all_handles: ClassVar[Set[str]] = set()
+    all_handles: ClassVar[set[str]] = set()
 
     handle: str = ''
 

05-record-like/dataclass/resource.py

@@ -27,7 +27,7 @@ A complete resource record:
 
 # tag::DATACLASS[]
 from dataclasses import dataclass, field
-from typing import List, Optional
+from typing import Optional
 from enum import Enum, auto
 from datetime import date
 
@@ -43,12 +43,12 @@ class Resource:
     """Media resource description."""
     identifier: str                                    # <2>
     title: str = '<untitled>'                          # <3>
-    creators: List[str] = field(default_factory=list)
+    creators: list[str] = field(default_factory=list)
     date: Optional[date] = None                        # <4>
     type: ResourceType = ResourceType.BOOK             # <5>
     description: str = ''
     language: str = ''
-    subjects: List[str] = field(default_factory=list)
+    subjects: list[str] = field(default_factory=list)
 # end::DATACLASS[]
 
 
@@ -58,12 +58,12 @@ from typing import TypedDict
 class ResourceDict(TypedDict):
     identifier: str
     title: str
-    creators: List[str]
+    creators: list[str]
     date: Optional[date]
     type: ResourceType
     description: str
     language: str
-    subjects: List[str]
+    subjects: list[str]
 
 
 if __name__ == '__main__':

05-record-like/dataclass/resource_repr.py

@@ -41,7 +41,7 @@ A complete resource record:
 """
 
 from dataclasses import dataclass, field, fields
-from typing import List, Optional, TypedDict
+from typing import Optional, TypedDict
 from enum import Enum, auto
 from datetime import date
 
@@ -57,12 +57,12 @@ class Resource:
     """Media resource description."""
     identifier: str
     title: str = '<untitled>'
-    creators: List[str] = field(default_factory=list)
+    creators: list[str] = field(default_factory=list)
     date: Optional[date] = None
     type: ResourceType = ResourceType.BOOK
     description: str = ''
     language: str = ''
-    subjects: List[str] = field(default_factory=list)
+    subjects: list[str] = field(default_factory=list)
 
 # tag::REPR[]
     def __repr__(self):
@@ -82,12 +82,12 @@ class Resource:
 class ResourceDict(TypedDict):
     identifier: str
     title: str
-    creators: List[str]
+    creators: list[str]
     date: Optional[date]
     type: ResourceType
     description: str
     language: str
-    subjects: List[str]
+    subjects: list[str]
 
 
 if __name__ == '__main__':