[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

mypy/checker.py

@@ -32,7 +32,12 @@
 )
 from mypy.checkpattern import PatternChecker
 from mypy.constraints import SUPERTYPE_OF
-from mypy.erasetype import erase_type, erase_typevars, shallow_erase_type_for_equality, remove_instance_last_known_values
+from mypy.erasetype import (
+    erase_type,
+    erase_typevars,
+    remove_instance_last_known_values,
+    shallow_erase_type_for_equality,
+)
 from mypy.errorcodes import TYPE_VAR, UNUSED_AWAITABLE, UNUSED_COROUTINE, ErrorCode
 from mypy.errors import (
     ErrorInfo,
@@ -6690,8 +6695,7 @@ def narrow_type_by_identity_equality(
                 target = TypeRange(target_type, is_upper_bound=False)
 
                 if_map, else_map = conditional_types_to_typemaps(
-                    operands[i],
-                    *conditional_types(expr_type, [target], from_equality=True),
+                    operands[i], *conditional_types(expr_type, [target], from_equality=True)
                 )
                 if is_target_for_value_narrowing(get_proper_type(target_type)):
                     all_if_maps.append(if_map)
@@ -6729,9 +6733,7 @@ def narrow_type_by_identity_equality(
                     if is_target_for_value_narrowing(get_proper_type(target_type)):
                         if_map, else_map = conditional_types_to_typemaps(
                             operands[i],
-                            *conditional_types(
-                                expr_type, [target], from_equality=True
-                            ),
+                            *conditional_types(expr_type, [target], from_equality=True),
                         )
                         all_else_maps.append(else_map)
                 continue
@@ -8390,21 +8392,15 @@ def conditional_types(
         # We erase generic args because values with different generic types can compare equal
         # For instance, cast(list[str], []) and cast(list[int], [])
         proposed_type = shallow_erase_type_for_equality(proposed_type)
-        if not is_overlapping_types(
-            current_type, proposed_type, ignore_promotions=False
-        ):
+        if not is_overlapping_types(current_type, proposed_type, ignore_promotions=False):
             # Equality narrowing is one of the places at runtime where subtyping with promotion
             # does happen to match runtime semantics
             # Expression is never of any type in proposed_type_ranges
             return UninhabitedType(), default
-        if not is_overlapping_types(
-            current_type, proposed_type, ignore_promotions=True
-        ):
+        if not is_overlapping_types(current_type, proposed_type, ignore_promotions=True):
             return default, default
     else:
-        if not is_overlapping_types(
-            current_type, proposed_type, ignore_promotions=True
-        ):
+        if not is_overlapping_types(current_type, proposed_type, ignore_promotions=True):
             # Expression is never of any type in proposed_type_ranges
             return UninhabitedType(), default
 
@@ -8653,10 +8649,7 @@ def reduce_and_conditional_type_maps(ms: list[TypeMap], *, use_meet: bool) -> Ty
     return result
 
 
-BUILTINS_CUSTOM_EQ_CHECKS: Final = {
-    "builtins.bytearray",
-    "builtins.memoryview",
-}
+BUILTINS_CUSTOM_EQ_CHECKS: Final = {"builtins.bytearray", "builtins.memoryview"}
 
 
 def has_custom_eq_checks(t: Type) -> bool:

mypy/erasetype.py

@@ -287,7 +287,6 @@ def visit_union_type(self, t: UnionType) -> Type:
         return new
 
 
-
 def shallow_erase_type_for_equality(typ: Type) -> ProperType:
     """Erase type variables from Instance's"""
     p_typ = get_proper_type(typ)