Python immutable list type (generated with OpenAI's text-davinci-003 model)

immutable_list.py

"""
1. Define an immutable list type.
2. Create a library for manipulating the list.
"""


# Answer

# 1. Define an immutable list type
class ImmutableList:
    def __init__(self, items):
        self.items = tuple(items)

    def __getitem__(self, index):
        return self.items[index]

    def __len__(self):
        return len(self.items)

    def __repr__(self):
        return "ImmutableList({})".format(self.items)

    def __iter__(self):
        return iter(self.items)


# 2. Create a library for manipulating the list
def append_immutable(ilist, item):
    return ImmutableList(ilist.items + (item,))


def insert_immutable(ilist, index, item):
    return ImmutableList(ilist.items[:index] + (item,) + ilist.items[index:])


def remove_immutable(ilist, item):
    return ImmutableList(tuple(x for x in ilist.items if x != item))