list_comparison.py

"""Compare two list."""


def equal_list(lst1, lst2):
    lst1 = lst1.copy()
    for element in lst2:
        try:
            lst1.remove(element)
        except ValueError:
            return False
    if lst1:
        return False
    return True


def subtract_list(lst1, lst2):
    lst = lst1.copy()
    for element in lst2:
        try:
            lst.remove(element)
        except ValueError:
            continue
    return lst


def intersect_list(lst1, lst2):
    lst = []
    lst1 = lst1.copy()
    for element in lst2:
        try:
            lst1.remove(element)
        except ValueError:
            continue
        else:
            lst.append(element)
    return lst