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# Step 9: Resilience against network failures

## What you gain

You learn to retry: `retry(func, retries=7, description=None)` repeats a call that raises, waits between attempts, logs a warning and raises RetriesExhaustedError at the end. `login()`, `book_class()` and `get_my_bookings()` are wrapped with it, so a site that drops requests does not stop the run.

## Where it is in the code

`src/snack_and_lift/application/retry.py`

## Screenshot

![Step 9: Resilience against network failures](https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/049-snack-and-lift/raw/branch/main/docs/images/step-9.png)

> This image is an illustration: the bot ran against the project's local test pages (`tests/e2e/fixtures`), not against the live gym site. A run with a real account and `--screenshot-dir` (see [Getting started](Getting-Started)) replaces it.

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