freeCodeCamp/guide/english/python/string-methods/string-replace-method/index.md

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2018-10-12 19:37:13 +00:00
---
title: String Replace Method
---
## String Replace Method
The `str.replace(old, new, max)` method is used to replace the substring `old` with the string `new` for a total of `max` times. This method returns a new copy of the string with the replacement. The original string `str` is unchanged.
#### Examples
1. Replace all occurrences of `"is"` with `"WAS"`
```python
string = "This is nice. This is good."
newString = string.replace("is","WAS")
print(newString)
```
Output
```python
ThWAS WAS nice. ThWAS WAS good.
```
2. Replace the first 2 occurrences of `"is"` with `"WAS"`
```python
string = "This is nice. This is good."
newString = string.replace("is","WAS", 2)
print(newString)
```
Output
```python
ThWAS WAS nice. This is good.
```
#### More Information:
Read more about string replacement in the <a href='https://docs.python.org/2/library/string.html#string.replace' target='_blank' rel='nofollow'>Python docs</a>