import sys from src import Database class Resolve(Database): def __init__(self): super().__init__() if self.item_exists(sys.argv[1]): self.path_to_chksum() else: self.chksum_to_path() def path_to_chksum(self): print("Something") def chksum_to_path(self): print("Something else") if len(sys.argv) > 2: Resolve() else: print("Invalid argument length: Need at least two")