Table of Contents
The zfill() method returns a copy of the string with ‘0’ characters padded to the left.
The syntax of zfill()
in Python is:
str.zfill(width)
1. zfill() Parameter
zfill()
takes a single character width.
The width specifies the length of the returned string from zfill()
with 0
digits filled to the left.
2. Return Value from zfill()
zfill()
returns a copy of the string with 0
filled to the left. The length of the returned string depends on the width provided.
- Suppose, the initial length of the string is 10. And, the width is specified 15. In this case,
zfill()
returns a copy of the string with five ‘0’ digits filled to the left. - Suppose, the initial length of the string is 10. And, the width is specified 8. In this case,
zfill()
doesn’t fill ‘0’ digits to the left and returns a copy of the original string. The length of the returned string in this case will be 10.
3. Example 1: How zfill() works in Python?
text = "program is fun" print(text.zfill(15)) print(text.zfill(20)) print(text.zfill(10))
Output
0program is fun 000000program is fun program is fun
If a string starts with the sign prefix ('+', '-')
, 0
digits are filled after the first sign prefix character.
4. Example 2: How zfill() works with Sign Prefix?
number = "-290" print(number.zfill(8)) number = "+290" print(number.zfill(8)) text = "--random+text" print(text.zfill(20))
Output
-0000290 +0000290 -0000000-random+text
Related posts:
Python Program to Iterate Over Dictionaries Using for Loop
Python Deeper Insights into Machine Learning - Sebastian Raschka & David Julian & John Hearty
Python enumerate()
Python Program to Find Armstrong Number in an Interval
Python Tuple
Python Machine Learning Third Edition - Sebastian Raschka & Vahid Mirjalili
Python Set update()
Python Input, Output and Import
Python String format_map()
Python String isidentifier()
Python Program to Convert Decimal to Binary, Octal and Hexadecimal
Python Program to Find LCM
Python Decorators
Python Set symmetric_difference_update()
Convert Character Array to String in Java
Split a String in Java
Python String casefold()
Python Program to Check If a List is Empty
Python Numbers, Type Conversion and Mathematics
Python Set remove()
Python String maketrans()
Python input()
Python File I/O Operation
Python all()
Python List remove()
CharSequence vs. String in Java
How to Remove the Last Character of a String?
Python String find()
Java – Generate Random String
Python complex()
Python strptime()
Deep Learning with Python - A Hands-on Introduction - Nikhil Ketkar