Python Basics · Variables & Types · Lesson 5 of 36
Numbers, Strings, and Booleans
Concept
Numbers, Strings, and Booleans
Python's core types are int, float, str, and bool. Use type() to check what you are working with.
int and float behave differently in division — dividing two ints with / always produces a float in Python 3, even when the result is a whole number.
By the end of this lesson
- Explain the core idea behind Numbers, Strings, and Booleans.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
How to study this page
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Syntax
type(value)ExampleRunnable
score = 95
pi = 3.14
is_passing = True
print(type(score), type(pi), type(is_passing))Integer division with //
print(7 / 2) # 3.5
print(7 // 2) # 3Note: // discards the remainder and always returns a whole number result, unlike the regular / operator.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Numbers, Strings, and Booleans. 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
Create one variable of each type and print its type().
Loading editor…
Console