f-strings & Formatting

Expressions inside {}

f-strings evaluate any expression inside {} — including function calls and math.

name = "Ada"
score = 92.456
print(f"{name} scored {score:.1f}%")
print(f"Doubled: {score * 2:.0f}")

Output:

Ada scored 92.5%
Doubled: 185

Format specifiers

Format specs after : control width, decimals, padding and commas — e.g. f"{n:,}" adds thousand separators.