use pathlib everywhere

pkgs/clan-cli/clan_cli/locked_open.py

@@ -10,11 +10,11 @@ from .jsonrpc import ClanJSONEncoder
 
 
 @contextmanager
-def locked_open(filename: str | Path, mode: str = "r") -> Generator:
+def locked_open(filename: Path, mode: str = "r") -> Generator:
     """
     This is a context manager that provides an advisory write lock on the file specified by `filename` when entering the context, and releases the lock when leaving the context. The lock is acquired using the `fcntl` module's `LOCK_EX` flag, which applies an exclusive write lock to the file.
     """
-    with open(filename, mode) as fd:
+    with filename.open(mode) as fd:
         fcntl.flock(fd, fcntl.LOCK_EX)
         yield fd
         fcntl.flock(fd, fcntl.LOCK_UN)