atomic_write_text (fileutil)

Writes string content to a file atomically using a temp file and os.replace, ensuring data integrity and preventing partial writes.

def atomic_write_text(
    path: Path,
    content: str,
    *,
    encoding: str = "utf-8",
) -> None:
    """Write *content* to *path* atomically.

    A unique temporary file is created via ``mkstemp`` in the same directory
    as *path*, written to, then moved into place with ``os.replace``.  If
    anything goes wrong the temp file is cleaned up and the original *path*
    is left untouched.
    """
    path.parent.mkdir(parents=True, exist_ok=True)
    fd, tmp = tempfile.mkstemp(dir=path.parent, suffix=".tmp")
    try:
        with os.fdopen(fd, "w", encoding=encoding) as f:
            f.write(content)
            f.flush()
            os.fsync(f.fileno())

        retry_count = 20 if sys.platform == "win32" else 1
        for attempt in range(retry_count):
            try:
        

... (truncated -- full source via MCP)