Python String zfill()

Last Updated : 13 Mar, 2023

Python String zfill() method returns a copy of the string with ‘0’ characters padded to the left side of the given string.

Syntax of zfill() methods

Syntax: str.zfill(length)

Parameters: length: length is the length of the returned string from zfill() with ‘0’ digits filled to the leftside.

Return: Returns a copy of the string with ‘0’ characters padded to the left side of the given string.

Example 1: How to use zfill() function in Python.

Python3

text = "geeks for geeks"
  
print(text.zfill(25)) 
  
print(text.zfill(20)) 
  
# Given length is less than 
# the length od original string 
print(text.zfill(10))

Output:

0000000000geeks for geeks
00000geeks for geeks
geeks for geeks

Example 2: zfill() methods with Sign Prefix

Python3

number = "6041"
print(number.zfill(8)) 
  
number = "+6041"
print(number.zfill(8)) 
  
text = "--anything%(&%(%)*^"
print(text.zfill(20))

Output:

00006041
+0006041
-0-anything%(&%(%)*^

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