Python String format() Method

By IncludeHelp Last updated : December 15, 2024

Python String format() Method

The format() method is used to format the string (in other words - we can say to achieve the functionality like printf() in C language).

When we need to display the values of the variables inside the string, we can format it by placing {} where we want to place the value. {} is a replacement field, that replaces with the given value in format() method.

The field {} contains the index to replace, the value specified in the format function.

Let suppose, there are three values specified in the format method, {0} for the first value, {1} for the second value and {2} for the third value and so on will be used.

Syntax

String.format(parameter1, parameter2,...)

Parameters

Here, parameter1, parameter2, ... are the values/variables that will print within the string by replacing the field {N}. Where N is the index of the parameter.

Sample Input/Output

print "{0}, {1} and {2}".format("ABC", "PQR", "XYZ")
This statement will print "ABC, PQR, and XYZ"

Example 1: Printing name, age in different output formats

# printing name
print("My name is {0}".format("Amit"))

# printing name and age
print("My name is {0}, I am {1} years old".format("Amit", 21))

# printing name and age through variables
name = "Amit"
age = 21
print("My name is {0}, I am {1} years old".format(name, age))

Output

My name is Amit
My name is Amit, I am 21 years old
My name is Amit, I am 21 years old

Example 2: Calculating SUM, AVERAGE, and printing in different output formats

a = 10
b = 20

sum = a + b

# output 1
print("sum = {0}".format(sum))

# output 2
print("Sum of {0} and {1} is = {2}".format(a, b, sum))

# finding average and printing 
a = 11
b = 20

sub = a + b

print("Average of {0} and {1} is = {2}".format(a, b, float(sum) / 2))

Output

sum = 30
Sum of 10 and 20 is = 30
Average of 11 and 20 is = 15.0

Python String find() Method

Python String upper(), lower(), & title() Methods

Comments and Discussions!

Load comments ↻