Python String ljust() Method

Python String ljust() method left aligns the string according to the width specified and fills the remaining space of the line with blank space if ‘fillchr‘ argument is not passed.

Python String ljust() Method Syntax:

Syntax: ljust(len, fillchr)

Parameters:

• len: The width of string to expand it.
• fillchr (optional): The character to fill in the remaining space.

Return: Returns a new string of given length after substituting a given character in right side of original string.

Python String ljust() Method Example:

Python3

string = "geeks"
print(string.ljust(10, '-'))

Output:

geeks-----

Example 1: Basic Example of Using Python String ljust() Method

Python3

# example string
string = 'gfg'
width = 5

# print left justified string
print(string.ljust(width))

Output:

gfg  

Explanation:

Here, the minimum width defined is 5. So, the resultant string is of minimum length 5. And, the string ‘gfg’ is aligned to the left, which makes leaves two spaces on the right of the word.

Example 2: Printing Formatted table using Python String ljust() Method

Here, we use Python String ljust() method to make each item of equal width of max 10 characters. We have used 10 here because all items are less than 10 characters, for evenly formatting.

Python3

# our list of data
l = [
    ['Name', 'Age', 'Code'],
    ['Tuhin', 21, '+855-081'],
    ['Kamal', 22, '+976-254'],
    ['Arjun', 22, '+759-255']
]
# iterate on each row of the list
for row in l:
    for item in row:
          # print each item after space adjustment using ljust
        print(str(item).ljust(10, ' '), end="")
    # add new line after each row printing
    print()

Output:

Name      Age       Code      
Tuhin     21        +855-081  
Kamal     22        +976-254  
Arjun     22        +759-255