4b965c862d
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
90 lines
2.2 KiB
Python
90 lines
2.2 KiB
Python
# Copyright 2020 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any, Iterator, List, Mapping, Optional, Sequence, Tuple, Union
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from typing_extensions import Protocol
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"""
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Some very basic protocol definitions for the DB-API2 classes specified in PEP-249
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"""
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_Parameters = Union[Sequence[Any], Mapping[str, Any]]
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class Cursor(Protocol):
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def execute(self, sql: str, parameters: _Parameters = ...) -> Any:
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...
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def executemany(self, sql: str, parameters: Sequence[_Parameters]) -> Any:
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...
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def fetchone(self) -> Optional[Tuple]:
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...
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def fetchmany(self, size: Optional[int] = ...) -> List[Tuple]:
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...
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def fetchall(self) -> List[Tuple]:
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...
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@property
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def description(
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self,
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) -> Optional[
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Sequence[
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# Note that this is an approximate typing based on sqlite3 and other
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# drivers, and may not be entirely accurate.
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Tuple[
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str,
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Optional[Any],
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Optional[int],
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Optional[int],
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Optional[int],
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Optional[int],
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Optional[int],
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]
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]
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]:
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...
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@property
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def rowcount(self) -> int:
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return 0
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def __iter__(self) -> Iterator[Tuple]:
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...
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def close(self) -> None:
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...
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class Connection(Protocol):
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def cursor(self) -> Cursor:
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...
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def close(self) -> None:
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...
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def commit(self) -> None:
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...
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def rollback(self) -> None:
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...
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def __enter__(self) -> "Connection":
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...
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def __exit__(self, exc_type, exc_value, traceback) -> Optional[bool]:
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...
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