7b022e2d72
* Provided a better code. Updated the code to give desired output. * fix: corrected some verbiage
57 lines
1.2 KiB
Markdown
57 lines
1.2 KiB
Markdown
---
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title: String Replace Method
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---
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## String Replace Method
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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.
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#### Examples
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1. Replace all occurrences of `"is"` with `"WAS"`
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```python
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string = "This is nice. This is good."
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newString = string.replace("is","WAS")
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print(newString)
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```
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Output:
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```shell
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ThWAS WAS nice. ThWAS WAS good.
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```
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As you can see above, the "is" in This is also replaced with Was.
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To prevent this we can use <br>
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```python
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string = "This is nice. This is good."
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newString = string.replace(" is "," WAS ")
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print(newString)
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```
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Now the output becomes:
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```shell
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This WAS nice. This WAS good.
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```
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Here the "is" between whitespaces gets changed to "Was"
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2. Replace the first 2 occurrences of `"is"` with `"WAS"`
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```python
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string = "This is nice. This is good."
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newString = string.replace("is","WAS", 2)
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print(newString)
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```
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Output:
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```shell
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ThWAS WAS nice. This is good.
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```
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#### More Information:
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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>
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