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Lesson 29 +10 XP

Comparison Operators

Comparison operators compare two values and return True or False.

OperatorNameExample
==Equalx == y
!=Not equalx != y
>Greater thanx > y
<Less thanx < y
>=Greater or equalx >= y
<=Less or equalx <= y

Examples


python
print(5 == 5)

### True
print(5 != 5)

### False
print(5 > 3)

### True
print(5 < 3)

### False
print(5 >= 5)

### True
print(5 <= 4)

### False

Strings compare too


python
print("a" == "a")

### True
print("a" < "b")

### True (alphabetical order)

One equals vs two equals

  • = assigns a value.
  • == compares values.

python
x = 5

### assignment
print(x == 5)

### True, comparison

Chained comparisons

Python lets you chain comparisons:


python
print(1 < 5 < 10)

### True

TL;DR

  • Six comparison operators: ==, !=, >, <, >=, <=.
  • They always return a boolean.
  • Strings compare by alphabetical order.
  • = assigns; == compares.