# Installing packages from PyPI
Pyodide has experimental support for installing pure Python wheels from PyPI.
For use in Iodide:
```
%% py
import micropip
micropip.install('snowballstemmer')
# Iodide implicitly waits for the promise to resolve when the packages have finished
# installing...
%% py
import snowballstemmer
stemmer = snowballstemmer.stemmer('english')
stemmer.stemWords('go goes going gone'.split())
```
For use outside of Iodide (just Python), you can use the `then` method on the
`Promise` that `micropip.install` returns to do work once the packages have
finished loading:
```
def do_work(*args):
import snowballstemmer
stemmer = snowballstemmer.stemmer('english')
print(stemmer.stemWords('go goes going gone'.split()))
import micropip
micropip.install('snowballstemmer').then(do_work)
```
## Complete example
Adapting the setup from the section on ["using pyodide from
javascript"](./using_pyodide_from_javascript.html) a complete example would be,
```html
```