The **`replace()` method** is a built-in functionality offered in Python programming. It replaces all the occurrences of the old substring with the new substring.

`Replace()` *returns* a new string in which old substring is replaced with the new substring.  

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# Syntax

# replace() with two parameters.
string.replace(old_substring,new_substring)

# replace() with three parameters.
string.replace(old_substring,new_substring,no_of_times)

# Parameters

| Parameters    |     |
| --- | --- |
|  old_substring   | The substring you want to replace.    |
| new_substring    | The new substring with which you want to replace the old substring.    |
| no_of_times (Optional)    | The number of times you want to replace the old substring with the new substring. If this is not mentioned, all occurrences are replaced.    |

string = "Welcome to Educative!"

# original string
print(string)

# with two Parameters
print(string.replace("Welcome","GoodBye"))

string_new = "Run Run Run people!"

# original string
print(string_new)

# with three Parameters
print(string_new.replace("Run","Stop",2))

What is the string replace() method in Python?

Replaces occurrences of old substring with new substring, optionally limiting the number of replacements.

What is the string replace() method in Python?

Syntax

Parameters

Examples

1. With two Parameters

2. With three Parameters

Parameters
old_substring	The substring you want to replace.
new_substring	The new substring with which you want to replace the old substring.
no_of_times (Optional)	The number of times you want to replace the old substring with the new substring. If this is not mentioned, all occurrences are replaced.