Python Basics · Variables & Types · Lesson 4 of 36
Variables in Python
Concept
Variables in Python
Python variables do not need a declared type. Just assign a value with the equals sign.
This is called dynamic typing — the same variable name could hold a number at one point and a string later, though doing that on purpose usually makes code harder to follow.
- Explain the core idea behind Variables in Python.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Variables in Python. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Store your age and city in two variables and print them together.
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
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