fix python 3.12 pylint compat, fix some linting issues

Author: bckohan

django_enum/fields.py

@@ -141,7 +141,8 @@ def _try_coerce(
                             type(values(self.enum)[0])
                         ):
                             raise ValueError(
-                                f"'{value}' is not a valid {self.enum.__name__} "
+                                f"'{value}' is not a valid "
+                                f"{self.enum.__name__} "
                                 f"required by field {self.name}."
                             ) from err
         return value

django_enum/forms.py

@@ -67,7 +67,7 @@ class EnumChoiceField(TypedChoiceField):
     enum_: Optional[Type[Enum]] = None
     strict_: bool = True
     empty_value: Any = ''
-    empty_values: List[Any]
+    empty_values: List[Any] = TypedChoiceField.empty_values
     choices: Iterable[Tuple[Any, Any]]
 
     @property
@@ -114,7 +114,7 @@ def __init__(
             *,
             empty_value: Any = _Unspecified,
             strict: bool = strict_,
-            empty_values: List[Any] = TypedChoiceField.empty_values,
+            empty_values: List[Any] = empty_values.copy(),
             choices: Iterable[Tuple[Any, str]] = (),
             **kwargs
     ):

pyproject.toml

@@ -55,7 +55,10 @@ isort = "^5.6.4"
 doc8 = "^0.11.0"
 darglint = "^1.5.7"
 pytest-cov = "^4.0.0"
-pylint = "^2.6.0"
+pylint = [
+    { version = "<3.0", markers = "python_version <= '3.7'" },
+    { version = "^3.0", markers = "python_version > '3.7'" },
+]
 sphinx-argparse = "^0.3.0"
 deepdiff = ">=5.2.3,<7.0.0"
 safety = "^2.0.0"

setup.cfg

@@ -11,6 +11,7 @@ valid-metaclass-classmethod-first-arg = mcs
 
 [pylint.DESIGN]
 max-branches=15
+max-args=6
 
 [pylint.MASTER]
 ignore=tests