# class to store chromosome sequences
class Chromosome:
    
    # constructor
    """Chromosome object constructor"""
    def __init__(self, chrlist=[], chrcontig=""):
        self.chrlist = [int(x) for x in chrlist]
        self.chrcontig = chrcontig

    # getitem attr
    """provides list functionality to chromosomes"""
    def __getitem__(self, key): return self.chrlist[key]

    # len attr
    """provides 'len' functionality"""
    def __len__(self): return len(self.chrlist)

    # str attr
    """ provides 'print' functionality"""
    def __str__(self): return str((self.chrcontig, self.chrlist))

    __repr__ = __str__ # repr attrib is same as str

    # getters and setters
    def get_chrcontig(self): return self.chrcontig
    def get_chromosome(self): return self.chrlist
    def set_chrcontig(self, chrcontig): self.chrcontig = chrcontig
    def set_chromosome(self, chrlist): self.chrlist = chrlist