The original title is "Introduction to Python Module Four Part Two: Indexing"

Short summary

Learn Python list and string indexing basics: access elements using bracket notation with 0-based index numbers, modify mutable lists with assignment, and recognize that strings are immutable and cannot be changed. Includes clear code examples.

• •Lists are mutable; use index notation (list_name[n]) to access or modify values
• •Strings work like lists for indexing but are immutable—you cannot change characters
• •Indexing uses 0-based counting: the first element is at index 0

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