Helper function for constructing URIs for `sqlite3.connect()`

Feature or enhancement

Proposal:

When working with SQLite3 URIs, one very subtle thing about them is if you are on Windows and the database path starts with a drive letter, you need to make sure there's a leading /. You must also use POSIX file path separators.

A non-optimized solution is:

db_path = path.resolve(strict=True).as_posix()
if not db_path.startswith("/"):
    # Starts with a Windows drive letter, so add leading slash.
    db_path = "/" + db_path

This seems subtle enough to potentially warrant a function to take a pathlib.Path object and construct the resulting file: URI appropriately. I'm sure something nicer that doesn't force the absolute path could be used to save on any extra stat calls (if people are even that concerned for a single call that opens a database).

Has this already been discussed elsewhere?

No response given

Links to previous discussion of this feature:

No response

まず sqlite3.connect() のエントリポイントと、提案で説明されている pathlib.Path の動作を読み、その後 SQLite の URI 要件を確認します。Path から適切な file: URI を構築する helper について合意して実装し、Windows のドライブ文字と POSIX の区切り文字を含む、指定されたケースのテストを追加できれば完了です。