def natsort(val, key, reverse=False, ignore_case=True):
    """Using the natsort package, sort a list naturally, i.e. A1, B1, A2, A10 will sort A1, A2, A10, B1"""
    from natsort import natsorted, ns
    from operator import attrgetter
    alg = ns.IGNORECASE
    if not ignore_case:
        alg = ns.LOWERCASEFIRST
    return natsorted(val, key=attrgetter(key), reverse=reverse, alg=alg)