Python String replace()

replace() Syntax

Its syntax is:

str.replace(old, new [, count]) 

replace() Arguments

The replace() method can take a maximum of three arguments:

• old - the old substring we want to replace
• new - new substring which will replace the old substring
• count (optional) - the number of times you want to replace the old substring with the new string

Note: If count is not specified, the replace() method replaces all occurrences of the old substring with the new string.

replace() Return Value

The replace() method returns a copy of the string where the old substring is replaced with the new string. The original string remains unchanged.

If the old substring is not found, it returns a copy of the original string.

Example 1: Using replace()

Output

hurt, hurt heart
Let it be, don't let it be, don't let it be, let it be

More Examples on String replace()

Output

Original string: cold, cold heart
Replaced string: celd, celd heart
let it be, let it be, let it be