Python String zfill() Method

Python zfill() method fills the string at left with 0 digit to make a string of length width. It returns a string contains a sign prefix + or - before the 0 digit.

It returns original length string if the width is less than string length.

Signature

Parameters

width : length of the string.

Return

It returns a string.

Let's see some examples of zfill() method to understand it's functionality.

Python String zfill() Method Example 1

Let's see an example which has width greater than string length. It returns a new string containing 0 to the left and total length is equal to width.

Output:

0000000Zfill Example

Python String zfill() Method Example 2

Here, we are passing width less than the string length therefore it returns the original string without filling zeros to the left.

Output:

Zfill Example

Python String zfill() Method Example 3

This example describes the sign either + or - includes before the zero fills to the left of the string. See every value is filled after prefixing (+ or -) sign.

Output:

+000000100
-000000200
-0-Rohan--

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