16 Operations on a Nested List in Python - Part 01
In this video we begin exploring how to work with nested lists in Python. A nested list, or list of lists, is a foundational data structure in Python—useful when storing tabular or multi-dimensional data like student scores.
💡 What You’ll Learn in This Part:
1) Generating a Nested List:
Use list comprehension to simulate a score matrix for multiple students across subjects.
Understand how random.randint() helps in quickly generating mock data for practice.
2) Accessing Elements:
Use single-level indexing to access the scores of a particular student.
Use two-level indexing to access a specific subject score of a specific student.
3) Iterating Through the Nested List:
Use a for loop to iterate over students or subjects.
Print individual rows (students' scores) or extract all scores for a specific subject.
Why is this relevant:
Nested lists are a great way to start thinking in 2D structures before moving on to tools like NumPy (Arrays) or Pandas (DataFrames). Mastering these basic operations helps you build a strong foundation for data processing, analysis, and even game development or simulations.
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