diff --git a/stdlib/_typeshed/dbapi.pyi b/stdlib/_typeshed/dbapi.pyi new file mode 100644 index 000000000..eee4fc038 --- /dev/null +++ b/stdlib/_typeshed/dbapi.pyi @@ -0,0 +1,36 @@ +# PEP 249 Database API 2.0 Types +# https://www.python.org/dev/peps/pep-0249/ + +from collections.abc import Mapping, Sequence +from typing import Any, Protocol + +DBAPITypeCode = Any | None +# Strictly speaking, this should be a Sequence, but the type system does +# not support fixed-length sequences. +DBAPIColumnDescription = tuple[str, DBAPITypeCode, int | None, int | None, int | None, int | None, bool | None] + +class DBAPIConnection(Protocol): + def close(self) -> object: ... + def commit(self) -> object: ... + # optional: + # def rollback(self) -> Any: ... + def cursor(self) -> DBAPICursor: ... + +class DBAPICursor(Protocol): + @property + def description(self) -> Sequence[DBAPIColumnDescription] | None: ... + @property + def rowcount(self) -> int: ... + # optional: + # def callproc(self, __procname: str, __parameters: Sequence[Any] = ...) -> Sequence[Any]: ... + def close(self) -> object: ... + def execute(self, __operation: str, __parameters: Sequence[Any] | Mapping[str, Any] = ...) -> object: ... + def executemany(self, __operation: str, __seq_of_parameters: Sequence[Sequence[Any]]) -> object: ... + def fetchone(self) -> Sequence[Any] | None: ... + def fetchmany(self, __size: int = ...) -> Sequence[Sequence[Any]]: ... + def fetchall(self) -> Sequence[Sequence[Any]]: ... + # optional: + # def nextset(self) -> None | Literal[True]: ... + arraysize: int + def setinputsizes(self, __sizes: Sequence[DBAPITypeCode | int | None]) -> object: ... + def setoutputsize(self, __size: int, __column: int = ...) -> object: ...