def parse_args():
r""" Parse the command line arguments """
args = ArgumentParser()
args.add_argument("train",
help="Path from where to read the training file")
args.add_argument("test", help="Path from where to read the test file")
args.add_argument("out", help="Path write the generated labels")
args.add_argument("--smooth",
help="Perform add-1 smoothing",
action="store_true")
args = args.parse_args()
for fld in ["train", "test"]:
path = Path(args.__getattribute__(fld))
if not path.is_file(): raise ValueError(f"Unknown {fld} file {path}")
args.__setattr__(fld, path)
args.out = Path(args.out)
if args.out.exists() and not args.out.is_file():
raise ValueError(
f"Out file \"{args.out}\" appears not to be a file. Cannot overwrite"
)
return args
