Prevent file overwriting with this simple trick (sysadmins hate him!)

overwhy.py

def overwhy(dir, basename, ext):
    """
    Prevent file overwriting by appending formatted date+timestamp for non-unique filename.
    Example:
        Following non-unique filename query:
            dir: output_dir/, basename: results, ext:txt
        Yields:
            "output_dir/result_20240307_160534.txt"
    """
    import time
    from pathlib import Path
	t_str = time.strftime("%Y%m%d_%H%M%S")
	basepath = Path(dir) / f"{basename}.{ext}"
	if not basepath.exists():
		result = str(basepath)
	else:
		result = str(Path(dir) / basename) + "_" + t_str + "." + ext
	return result