Fix compatibility with python < 3.8 by switching from typing.Final to typing_extensions.Final

bemani/common/card.py

@@ -1,4 +1,5 @@
-from typing import Dict, Final, List
+from typing import Dict, List
+from typing_extensions import Final
 
 
 class CardCipherException(Exception):

bemani/common/constants.py

@@ -1,4 +1,4 @@
-from typing import Final
+from typing_extensions import Final
 
 
 class GameConstants:

bemani/common/time.py

@@ -2,7 +2,8 @@ import calendar
 import datetime
 from dateutil import tz
 
-from typing import List, Final, Optional
+from typing import List, Optional
+from typing_extensions import Final
 
 
 class Time:

bemani/format/afp/types/ap2.py

@@ -1,5 +1,6 @@
 import os
-from typing import TYPE_CHECKING, Any, Dict, Final, List, Set, Optional
+from typing import TYPE_CHECKING, Any, Dict, List, Set, Optional
+from typing_extensions import Final
 
 from .expression import Register
 

bemani/format/afp/types/expression.py

@@ -1,5 +1,6 @@
 import os
-from typing import TYPE_CHECKING, Any, Dict, Final, List, Tuple, Optional, Union
+from typing import TYPE_CHECKING, Any, Dict, List, Tuple, Optional, Union
+from typing_extensions import Final
 
 if TYPE_CHECKING:
     # Circular import otherwise

bemani/format/afp/types/statement.py

@@ -1,5 +1,6 @@
 import os
-from typing import Any, Final, List, Sequence, Union
+from typing import Any, List, Sequence, Union
+from typing_extensions import Final
 
 from .expression import (
     Expression,

bemani/protocol/binary.py

@@ -1,5 +1,6 @@
 import struct
-from typing import Optional, Final, List, Dict, Any
+from typing import Optional, List, Dict, Any
+from typing_extensions import Final
 
 from bemani.protocol.stream import InputStream, OutputStream
 from bemani.protocol.node import Node

bemani/protocol/lz77.py

@@ -1,7 +1,8 @@
 import ctypes
 import os
 from collections import defaultdict
-from typing import Generator, Final, List, MutableMapping, Optional, Set, Tuple
+from typing import Generator, List, MutableMapping, Optional, Set, Tuple
+from typing_extensions import Final
 
 from .. import package_root
 

bemani/protocol/node.py

@@ -1,7 +1,7 @@
 import copy
 import struct
-from typing import Any, Dict, Final, List, Optional, Union
+from typing import Any, Dict, List, Optional, Union
-
+from typing_extensions import Final
 
 # Hack to get around mypy's lack of scoping on types.
 _renamed_float = float

bemani/protocol/protocol.py

@@ -1,6 +1,7 @@
 import binascii
 import hashlib
-from typing import Final, Optional
+from typing import Optional
+from typing_extensions import Final
 
 from bemani.protocol.lz77 import Lz77
 from bemani.protocol.binary import BinaryEncoding

bemani/protocol/xml.py

@@ -1,6 +1,7 @@
 import copy
 import struct
-from typing import Any, Dict, Final, Iterator, List, Optional, Tuple
+from typing import Any, Dict, Iterator, List, Optional, Tuple
+from typing_extensions import Final
 
 from bemani.protocol.stream import InputStream
 from bemani.protocol.node import Node