Python String zfill() method

Python String zfill() method

The string.zfill() method in Python returns a copy of the string while adding the zeros (0) at the beginning of the string, until it reaches the specified width.

Syntax

string.zfill(width)

Parameter

width - This parameter represents a number specifying the position of the element you want to remove.

Return

This method returns the numeric string left filled with zeros in a string of length width.

Example 1

 # Python program explaining
 # the string.zfill() method
 # initializing the string
 string = "Hello World"
 # it will add zeros at the starting of the string
 # returning total 25 width string
 print(string.zfill(25)) 
 # it will add zeros at the starting of the string
 # returning total 20 width string
 print(string.zfill(20)) 
 # Given length is less than 
 # the length od original string 
 # it will return the same string
 print(string.zfill(10)) 

Output

 00000000000000Hello World
 000000000Hello World
 Hello World 

Example 2

 # Python program explaining
 # the string.zfill() method
 # initializing the string
 string = "This is a Python example"
 #passing negative number
 # return the same string
 print(string.zfill(-25))  

Output

This is a Python example

Example 3

 # Python program explaining
 # the string.zfill() method
 # initializing the string with whitespaces
 string = "   hello\n"
 print(string.zfill(15))
 # string with integers
 string="653444"
 print(string.zfill(13)) 
 # initialising string with special characters
 string= "*-6453436"
 print(string.zfill(15)) 

Output

 000000   hello
 0000000653444
 000000*-6453436