NameError: name 'KavenegarAPI' is not defined

after installing Kavenegar by pip package manager, when I need to use it, my code return that package not found.
Is this package match with latest python or virtual environments

```
    api = KavenegarAPI(api_key)
NameError: name 'KavenegarAPI' is not defined

During handling of the above exception, another exception occurred:
```