def record(word, path=_path):
"""Append queried word in a yaml file in lowercase format.
If the path is directed to yaml file, there will be three
situations. When there is no such file, we create a new one
according to the specified file name and write the word. When the
file does exist, we read its content first.
Args:
word (str): to be appended at the end of the yaml file.
path (str): to the yaml file.
Raises:
ValueError: when the path is not to a yaml file.
"""
if not path.endswith(".yaml"):
raise ValueError(f"{path} is not a path to yaml file.")
if not pathlib.Path(path).is_file():
with open(path, "w") as f:
yaml.safe_dump([word], f)
else:
with open(path, "r") as f:
try:
hist = yaml.safe_load(f)
except yaml.YAMLError as exc:
logger.exception(exc)
> if hist is None:
E UnboundLocalError: local variable 'hist' referenced before assignment
src/cmdict/history.py:41: UnboundLocalError
