4 lessons · Beginner
Python & data foundations
Go from your first program to reading a CSV and choosing a useful summary statistic.
By the end: Build a tiny program, inspect a dataset, and explain a result with care.
0 of 4 lessons completed
- 01○
Your first Python program: input, variables, and output
Build a tiny calculator and learn to read what each line does.
- 02○
Python lists vs tuples: when does the difference matter?
A practical guide to mutability, ordering, and choosing the right container in everyday code.
- 03○
Read a CSV in Python without losing track of your data
Load a small file, inspect its columns, and handle the two common surprises: delimiters and missing values.
- 04○
Mean or median? A five-number example with an outlier
See why one unusual value can shift the average and how to choose a useful summary.