diff --git a/stdlib/sqlite3/dbapi2.pyi b/stdlib/sqlite3/dbapi2.pyi
index 0eaab5eff..74caa0e64 100644
--- a/stdlib/sqlite3/dbapi2.pyi
+++ b/stdlib/sqlite3/dbapi2.pyi
@@ -102,10 +102,10 @@ else:
         cached_statements: int = ...,
     ) -> Connection: ...
 
-def enable_callback_tracebacks(flag: bool) -> None: ...
-def enable_shared_cache(do_enable: int) -> None: ...
-def register_adapter(type: Type[_T], callable: Callable[[_T], Union[int, float, str, bytes]]) -> None: ...
-def register_converter(typename: str, callable: Callable[[bytes], Any]) -> None: ...
+def enable_callback_tracebacks(__enable: bool) -> None: ...
+def enable_shared_cache(enable: int) -> None: ...
+def register_adapter(__type: Type[_T], __caster: Callable[[_T], Union[int, float, str, bytes]]) -> None: ...
+def register_converter(__name: str, __converter: Callable[[bytes], Any]) -> None: ...
 
 if sys.version_info < (3, 8):
     class Cache(object):
@@ -136,17 +136,17 @@ class Connection(object):
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def close(self) -> None: ...
     def commit(self) -> None: ...
-    def create_aggregate(self, name: str, num_params: int, aggregate_class: Callable[[], _AggregateProtocol]) -> None: ...
-    def create_collation(self, name: str, callable: Any) -> None: ...
+    def create_aggregate(self, name: str, n_arg: int, aggregate_class: Callable[[], _AggregateProtocol]) -> None: ...
+    def create_collation(self, __name: str, __callback: Any) -> None: ...
     if sys.version_info >= (3, 8):
-        def create_function(self, name: str, num_params: int, func: Any, *, deterministic: bool = ...) -> None: ...
+        def create_function(self, name: str, narg: int, func: Any, *, deterministic: bool = ...) -> None: ...
     else:
         def create_function(self, name: str, num_params: int, func: Any) -> None: ...
     def cursor(self, cursorClass: Optional[type] = ...) -> Cursor: ...
     def execute(self, sql: str, parameters: Iterable[Any] = ...) -> Cursor: ...
     # TODO: please check in executemany() if seq_of_parameters type is possible like this
-    def executemany(self, sql: str, seq_of_parameters: Iterable[Iterable[Any]]) -> Cursor: ...
-    def executescript(self, sql_script: Union[bytes, Text]) -> Cursor: ...
+    def executemany(self, __sql: str, __parameters: Iterable[Iterable[Any]]) -> Cursor: ...
+    def executescript(self, __sql_script: Union[bytes, Text]) -> Cursor: ...
     def interrupt(self, *args: Any, **kwargs: Any) -> None: ...
     def iterdump(self, *args: Any, **kwargs: Any) -> Generator[str, None, None]: ...
     def rollback(self, *args: Any, **kwargs: Any) -> None: ...
@@ -173,7 +173,7 @@ class Connection(object):
         ) -> None: ...
     def __call__(self, *args: Any, **kwargs: Any) -> Any: ...
     def __enter__(self) -> Connection: ...
-    def __exit__(self, t: Optional[type] = ..., exc: Optional[BaseException] = ..., tb: Optional[Any] = ...) -> None: ...
+    def __exit__(self, t: Optional[type], exc: Optional[BaseException], tb: Optional[Any]) -> None: ...
 
 class Cursor(Iterator[Any]):
     arraysize: Any
@@ -187,9 +187,9 @@ class Cursor(Iterator[Any]):
     # however, the name of the __init__ variable is unknown
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def close(self, *args: Any, **kwargs: Any) -> None: ...
-    def execute(self, sql: str, parameters: Iterable[Any] = ...) -> Cursor: ...
-    def executemany(self, sql: str, seq_of_parameters: Iterable[Iterable[Any]]) -> Cursor: ...
-    def executescript(self, sql_script: Union[bytes, Text]) -> Cursor: ...
+    def execute(self, __sql: str, __parameters: Iterable[Any] = ...) -> Cursor: ...
+    def executemany(self, __sql: str, __seq_of_parameters: Iterable[Iterable[Any]]) -> Cursor: ...
+    def executescript(self, __sql_script: Union[bytes, Text]) -> Cursor: ...
     def fetchall(self) -> List[Any]: ...
     def fetchmany(self, size: Optional[int] = ...) -> List[Any]: ...
     def fetchone(self) -> Any: ...