Working with Lists and Dictionaries

A list is an ordered

A list is an ordered, mutable sequence data type. Its elements are written inside square brackets and separated by commas. A list can contain elements

List indexing starts at 0

List indexing starts at 0. Negative indices access elements from the end of the list, and list[-1] returns the last element. Accessing an out-of-range

Slicing uses list[start

Slicing uses list[start:stop:step], where start is inclusive, stop is exclusive, and step is the jump size. Slicing beyond the list length truncates t

Lists can be joined using +

Lists can be joined using +, repeated using *, and checked using in and not in. Concatenation does not change the original lists, and both operands mu

append() adds one element at

append() adds one element at the end, extend() adds each element of another list individually, insert() places an element at a given index, count() co