Part 3: Python List Hidden Memory Secrets: Pointers and References | List Constructor : Create list
🧠 *Python Lists Introduction: Create, Access & Modify Lists | NeuralAICodeCraft*
Lists are one of Python's most powerful and versatile data structures! Learn how to store multiple values in a single variable.
📌 *What you'll learn:*
*WHAT ARE LISTS?*
▸ Storing multiple items in one variable [citation:2]
▸ Ordered collections of elements [citation:3][citation:5]
▸ Why we need lists (vs individual variables)
*CREATING LISTS*
▸ Empty list: `[]` [citation:1]
▸ List with values: `[1, 2, 3]`
▸ Using `list()` constructor [citation:5]
▸ Lists can hold ANY data type [citation:3][citation:6]
*ACCESSING LIST ELEMENTS*
▸ Indexing starts at 0 [citation:1][citation:2]
▸ Access elements: `my_list[0]`
▸ Negative indexing: `my_list[-1]` [citation:7]
▸ Modifying elements: `my_list[0] = 99` [citation:1]
*LIST CHARACTERISTICS*
▸ Ordered (preserves insertion order)
▸ Heterogeneous (mix types allowed) [citation:5]
▸ Mutable (can be changed) [citation:3][citation:6]
▸ Dynamic (grows/shrinks as needed) [citation:5][citation:9]
*COMMON OPERATIONS*
▸ `append()` - Add an item [citation:1]
▸ `len()` - Get list length [citation:7]
▸ Concatenation with `+` [citation:2][citation:6]
📌 *Timestamps:*
0:00 - What is a List?
2:00 - Why Use Lists? (vs Individual Variables)
4:30 - Creating Lists
7:00 - List Indexing (0-based)
10:00 - Negative Indexing
12:00 - Lists are Mutable (Changeable)
14:30 - Heterogeneous Lists (Mixed Types)
16:00 - Common List Operations
18:00 - Practice Problems & Summary
💻 *Code from this video:* [GitHub link]
🎯 *Practice Challenge:*
Create a list of your 5 favorite foods. Print the first and last items. Then change the third item to something else.
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