Beginner / 4–6 weeks suggested pace

Practical Coding

Small scripts. Useful tools. Strong foundations.

Your path from learning to making

Practice variables, lists, dictionaries, functions, and running a script.

Checkpoint: Write a function and explain its input and output.

Read a small CSV and handle empty values and invalid numbers.

Checkpoint: Your program reports a useful error instead of crashing.

Turn repeated manual work into a reusable command-line script.

Checkpoint: Run the script on a second input file without editing its code.

Separate reading, validation, calculation, and output. Check edge cases.

Checkpoint: Test an empty file, an invalid row, and a valid result.

Write a README with setup instructions, sample input, and expected output.

Checkpoint: Someone else can reproduce your result.

Browse existing courses and articles. Check each resource for prerequisites and its creator.