missing '/data/advent2020/' folder

[TPNguyen]

FileNotFoundError Traceback (most recent call last)
in
----> 1 in1: Set[int] = set(data(1, int))

in data(day, parser, sep)
1 def data(day: int, parser=str, sep='\n') -> list:
2 "Split the day's input file into sections separated by sep, and apply parser to each."
----> 3 sections = open(f'data/advent2020/input{day}.txt').read().rstrip().split(sep)
4 return [parser(section) for section in sections]
5

FileNotFoundError: [Errno 2] No such file or directory: 'data/advent2020/input1.txt'