LESSON 1

Variables & Data Types

Start here — Python stores data in variables.

1

Python Terminal

Run real pandas against the dataset live — the real muscle memory.

Lessons

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Read It Aloud — how every lesson works

Every line of code is broken down into plain language. Once you can say it out loud — in any language — you own it.

Other Kits

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Your Path

One step at a time, top to bottom. Nothing ahead is locked — dimmed just means it's coming up. The highlighted node is your next step.

Review

Every recall that's due, in one place — answer from memory first, flip when you can't.

Practice Drills

Five drill types, one per lesson. Mix them up or focus on a weak spot.

Python Terminal

Real Python — powered by Pyodide. Write pandas code and run it against the Contoso Coffee dataset.

⏳ Loading Python runtime… (first load ~5s, then cached)
The DataFrames you can use click a column to type it into the editor, quoted and ready
Loading the data…
contoso_coffee.py
Output will appear here…

Quick references

df.head() df.shape df.info() df.describe() df.dtypes
df['revenue'].sum() df.groupby('region')['revenue'].sum() df[df['units'] > 10] df.sort_values('revenue', ascending=False) df.isnull().sum()

Flashcards

Tap a card to flip it. Arrow through the deck.

Glossary