diff --git a/asgiref/current_thread_executor.py b/asgiref/current_thread_executor.py
index 67a7926f..70097dd1 100644
--- a/asgiref/current_thread_executor.py
+++ b/asgiref/current_thread_executor.py
@@ -104,12 +104,5 @@ def _submit(
         # Return the future
         return f
 
-    # Python 3.9+ has a new signature for submit with a "/" after `fn`, to enforce
-    # it to be a positional argument. If we ignore[override] mypy on 3.9+ will be
-    # happy but 3.8 will say that the ignore comment is unused, even when
-    # defining them differently based on sys.version_info.
-    # We should be able to remove this when we drop support for 3.8.
-    if not TYPE_CHECKING:
-
-        def submit(self, fn, *args, **kwargs):
-            return self._submit(fn, *args, **kwargs)
+    def submit(self, fn, *args, **kwargs):
+        return self._submit(fn, *args, **kwargs)
diff --git a/asgiref/local.py b/asgiref/local.py
index 7d228aeb..8f7855df 100644
--- a/asgiref/local.py
+++ b/asgiref/local.py
@@ -14,12 +14,8 @@ def __init__(self) -> None:
     def __getattr__(self, key: str) -> Any:
         try:
             var = self._data[key]
-        except KeyError:
-            raise AttributeError(f"{self!r} object has no attribute {key!r}")
-
-        try:
             return var.get()
-        except LookupError:
+        except (KeyError, LookupError):
             raise AttributeError(f"{self!r} object has no attribute {key!r}")
 
     def __setattr__(self, key: str, value: Any) -> None: