♻️ Refactor imports and caching in color.py and country.py

pydantic_extra_types/color.py

@@ -11,14 +11,8 @@
 
 import math
 import re
-import sys
 from colorsys import hls_to_rgb, rgb_to_hls
-from typing import Any, Callable, Tuple, Union, cast
-
-if sys.version_info >= (3, 8):  # pragma: no cover
-    from typing import Literal
-else:  # pragma: no cover
-    from typing_extensions import Literal
+from typing import Any, Callable, Literal, Tuple, Union, cast
 
 from pydantic import GetJsonSchemaHandler
 from pydantic._internal import _repr

pydantic_extra_types/country.py

@@ -28,7 +28,7 @@ class CountryInfo:
     official_name: str
 
 
-@lru_cache()
+@lru_cache
 def _countries() -> list[CountryInfo]:
     return [
         CountryInfo(
@@ -42,27 +42,27 @@ def _countries() -> list[CountryInfo]:
     ]
 
 
-@lru_cache()
+@lru_cache
 def _index_by_alpha2() -> dict[str, CountryInfo]:
     return {country.alpha2: country for country in _countries()}
 
 
-@lru_cache()
+@lru_cache
 def _index_by_alpha3() -> dict[str, CountryInfo]:
     return {country.alpha3: country for country in _countries()}
 
 
-@lru_cache()
+@lru_cache
 def _index_by_numeric_code() -> dict[str, CountryInfo]:
     return {country.numeric_code: country for country in _countries()}
 
 
-@lru_cache()
+@lru_cache
 def _index_by_short_name() -> dict[str, CountryInfo]:
     return {country.short_name: country for country in _countries()}
 
 
-@lru_cache()
+@lru_cache
 def _index_by_official_name() -> dict[str, CountryInfo]:
     return {country.official_name: country for country in _countries() if country.official_name}