ljust()

my_string.ljust(width, filler)

my_str='Welcome to'
output=my_str.ljust(15,'*')
print(output) # Welcome to*****

my_str='Welcome to'
output=my_str.ljust(5,'*')
print(output) # Welcome to

Handling Strings Longer Than Width

If the string is longer than the specified width, ljust() leaves it unchanged:

my_str = 'Python'
print(my_str.ljust(4, '*'))  # Output: 'Python'

Use Case: Formatting Table Output

You can use ljust() to format columns in a table:

header = "Name".ljust(10) + "Age".ljust(5)
row = "Alice".ljust(10) + "25".ljust(5)
print(header)
print(row)

Name      Age  
Alice     25  

Using Different Filler Characters

ljust() can fill extra space with any character:

text = 'Data'
print(text.ljust(10, '-'))  # Output: 'Data------'

Use Case: Generating Console Output

Aligning text output for a CLI application:

item = "Product".ljust(15, '.') + "Price"
print(item) # Output: 'Product.......Price'

Use Case: String Alignment in Logs

Aligning log entries for readability:

log_entry = "INFO".ljust(8) + "Operation completed."
print(log_entry)# Output: 'INFO    Operation completed.'

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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