Python 3 - String zfill() Method

Description

The zfill() method pads string on the left with zeros to fill width.

Syntax

Following is the syntax for zfill() method −

str.zfill(width)

Parameters

width − This is final width of the string. This is the width which we would get after filling zeros.

Return Value

This method returns padded string.

Example

The following example shows the usage of zfill() method.

#!/usr/bin/python3

str = "this is string example....wow!!!"
print ("str.zfill : ",str.zfill(40))
print ("str.zfill : ",str.zfill(50))

Result

When we run above program, it produces the following result −

str.zfill :  00000000this is string example....wow!!!
str.zfill :  000000000000000000this is string example....wow!!!