def test_delete():
list = LinkedNode(10)
list += 20
list += 30
list += 40
list = delete_item(list, 30)
assert print_list(list) == '10, 20, 40'
list = delete_item(list, 10)
assert print_list(list) == '20, 40'
list = delete_item(list, 50)
assert print_list(list) == '20, 40'
list = delete_item(list, 40)
assert print_list(list) == '20'
list = delete_item(list, 20)
assert type(list) == NoneType
def remove_duplicates(target_list):
"""
Function that removes duplicates from a linked list
"""
current_node = target_list
while current_node:
runner = current_node
while runner.next_node:
if runner.next_node.key == current_node.key:
runner.next_node = linkednode.delete_item(
runner.next_node, current_node.key)
else:
runner = runner.next_node
current_node = current_node.next_node
return target_list
def remove_duplicates(target_list):
"""
Function that removes duplicates from a linked list
"""
current_node = target_list
while current_node:
runner = current_node
while runner.next_node:
if runner.next_node.key == current_node.key:
runner.next_node = linkednode.delete_item(runner.next_node,
current_node.key)
else:
runner = runner.next_node
current_node = current_node.next_node
return target_list
