Fix bad type[...] annotations

Fixes #285

pyproject.toml

@@ -111,6 +111,7 @@ ignore = [
     "PLR0912", # too-many-branches
     "PLR0915", # too-many-statements
     "PLW0603", # global-statement
+    "UP006",   # non-pep585-annotation, type[FieldArray] renders wrong in docs
 ]
 extend-select = [
     "D213", # multi-line-summary-second-line

src/sdr/_sequence/_lfsr.py

@@ -3,7 +3,7 @@
 """
 from __future__ import annotations
 
-from typing import Callable, overload
+from typing import Callable, Type, overload
 
 import numba
 import numpy as np
@@ -468,7 +468,7 @@ def to_galois_lfsr(self) -> GLFSR:
         return GLFSR(self.characteristic_poly, state=state)
 
     @property
-    def field(self) -> type[FieldArray]:
+    def field(self) -> Type[FieldArray]:
         """
         The :obj:`~galois.FieldArray` subclass for the finite field that defines the linear arithmetic.
 
@@ -1170,7 +1170,7 @@ def to_fibonacci_lfsr(self) -> FLFSR:
         return FLFSR(self.characteristic_poly, state=state)
 
     @property
-    def field(self) -> type[FieldArray]:
+    def field(self) -> Type[FieldArray]:
         """
         The :obj:`~galois.FieldArray` subclass for the finite field that defines the linear arithmetic.