Python String format() Method

Python format() method is used to perform format operations on string. While formatting string a delimiter {} (braces) is used to replace it with the value. This delimeter either can contain index or positional argument.

Signature

Parameters

• *args : substring
• **kwargs : start index a range

Return Type

It returns a formatted string.

Let's see some examples to understand the format() method.

Python String format() Method Example 1

An example of simple format method which format string using positional delimiter.

Output:

Java and C# both are programming languages

Python String format() Method Example 2

The delimiter (braces) are using numerical index to replace and format string.

Output:

C# and Java both are programming languages

Python String format() Method Example 3

Formatting numerical value in different-different number systems. See the below example.

Output:

decimal: 10
hex: a
octal: 12
binary: 1010

Python String format() Method Example 4

Formating float and percentile in string is pretty easy.

Output:

decimal: 100,000,000
decimal: 622.22%