ljust( ) FUNCTION

The ljust() Function is used to left justify a String using Space by default.

x = "Hello"
y = x.ljust(10)
print(y,"World")

Output :

Hello World

In the above code, we have declared a String 'Hello' and assigned it to a variable 'x'.

x = "Hello"

Then we have created a variable 'y' that will reserve '10' blocks. And left justified the String 'Hello' using 'ljust( )' Function.

y = x.ljust(10)

That shifts the String Hello towards the left filling the last 5 locations with space (i.e. ' ').

And if you see the print statement,

print(y,"World")

There is a gap of 5 spaces between 'Hello' and 'World'.

Hello World

Now, let us say you want the fill the right blocks with something other than spaces.

And luckily, Python provides a second parameter that can be used as a padding character.

Let us see with the below example.

x = "Hello"
y = x.ljust(10, "*")
print(y, "World")

Hello***** World

In the above code, we have declared a String 'Hello' and assigned it to a variable 'x'.

x = "Hello"

Then we have created a variable 'y' that will reserve '10' blocks. And left justified the String 'Hello' using 'ljust( )' Function.

y = x.ljust(10, "*")

That shifts the String Hello towards the left filling the last 5 locations with space (i.e. ' ').

And if you see the print statement,

print(y,"World")

There is a gap of 5 spaces between 'Hello' and 'World'.

Hello***** World