How To Use Python String Ljust Method – Easy Python Example Code

In this tutorial, we’ll learn what Python string ljust() method is and how to properly use it. We’ll go through multiple Python code examples to understand how ljust() method works in Python.

Outline

Introduction: Python String ljust() Method
Syntax of ljust() Method
Example 1: Python String ljust() Method Applied on a String
Example 2: ljust() Method in Python For Loop
Example 3: Python String ljust() Method Return Value
Conclusion

Introduction: Python String ljust() Method

This method is used to return a left justified Python string with a specified minimum width.

Syntax of ljust() Method

string.ljust(width,char(optional))

Python string ljust() method take two arguments.
First one specifies the width of the new returned string. If the width is less than or equal to the original string then only the string will be returned.
Second argument is optional. Its used to fill the remaining string with a character specified in it. Whitespace character will be used if no character is passed to it.

Example 1: Python String ljust() Method Applied on a String

val='Python'
print(val.ljust(10,'*'))
print('Python'.ljust(10))  // whitespace applied if no character is specified
print('Python'.ljust(7,'*'))
print('Python'.ljust(5,'*'))
print('Python'.ljust(15,'-'))

Output

Python**** 
Python           // white spaces are applied to it        
Python* 
Python 
Python---------

This is how Python string ljust method works. We can see that by providing a width of equal or less than the actual length of string will result in just the original string returned by this method. Also, whitespaces will be applied by default if no other character is specified.

Example 2: ljust() Method in Python For Loop

val='Python Program'
for var in range(13,20):
    print(val.ljust(var,'-'))

Output

Python Program 
Python Program 
Python Program- 
Python Program-- 
Python Program--- 
Python Program---- 
Python Program-----

We’ve created a simple example program to demonstrate how Python string ljust method can be used in Python for loop. You can customize it according to your set of requirements.

Example 3: Python String ljust() Method Return Value

val= 'Python Program'
returnedValue= val.ljust( 18, '=' )
print( returnedValue )
print( val )      // original string

Output

Python Program====
Python Program    // original string

Python string ljust method does not modify the existing string. It returns a new modified string.

Conclusion

To conclude this tutorial, I hope you now have a detailed practical understanding of how to properly use Python string ljust method. I’ll be looking forward to receive your feedback on this post. Thank you for reading it.