Files, Modules & Programs
Tuples, sets, file I/O, and a capstone that brings every skill together.
Your Data Is About to Come From the Real World
Until now, every piece of data you've worked with was typed directly into your code. That's fine for learning. But real programs read files, process CSVs, and write reports.
This week, you connect Python to the outside world.
By Friday, you'll build a program that reads a real file, processes every line, filters the data, and writes the results to a new file. That's not a toy exercise — that's what people get paid to do.
Three weeks ago, you didn't know what print() does. Look at what you're about to build.
Practice your skills
Sign up to write and run code in this lesson.
Files, Modules & Programs
Tuples, sets, file I/O, and a capstone that brings every skill together.
Your Data Is About to Come From the Real World
Until now, every piece of data you've worked with was typed directly into your code. That's fine for learning. But real programs read files, process CSVs, and write reports.
This week, you connect Python to the outside world.
By Friday, you'll build a program that reads a real file, processes every line, filters the data, and writes the results to a new file. That's not a toy exercise — that's what people get paid to do.
Three weeks ago, you didn't know what print() does. Look at what you're about to build.
Practice your skills
Sign up to write and run code in this lesson.