# Strip non-alphabetical or non-alphanumeric characters in a string

> Python characters have a function isalpha() and isalnum() which can be used to strip non-alphabetical or non-alphanumeric characters in a string.

- Canonical: https://preview.arshadmehmood.com/today-i-learned/python/strip-non-alphabetical-or-non-alphanumeric-characters-in-a-string/
- Section: python
- Author: Arshad Mehmood

Python characters have a function `isalpha()` and `isalnum()` which can be used to strip non-alphabetical or non-alphanumeric characters in a string.

```py
s = ''.join(x for x in s if x.isalnum())
s = ''.join(x for x in s if x.isalpha())
```