Error in page 313 Code is not consisten with text

[mzakariaCERN]

"in order to do so, we just need to add a line of code to import update_model function from the update.py script at the top of app.py

# import update function form local dir
from update import update_model

yet https://github.com/rasbt/python-machine-learning-book-3rd-edition/blob/bf62496f44a92a21d23250d5ed13d2d2e617e0e2/ch09/movieclassifier_with_update/app.py#L10

does not have the.

Also update_model function is not called in the main function.