---
id: practical-python-7.9
source_exercise_id: "7.9"
title: "Putting it into practice"
section: "7.3 Returning Functions"
source_path: "07_Advanced_Topics/03_Returning_functions.md"
source_repo: "https://github.com/dabeaz-course/practical-python"
source_commit: "93dca856b41c61a0a0f85ae334116e4c125629ea"
student_visible_solution: false
has_private_solution: true
skip: false
---

# Exercise 7.9: Putting it into practice

> Source: Practical Python Programming, `07_Advanced_Topics/03_Returning_functions.md`.

### Exercise 7.9: Putting it into practice

Rewrite the `Stock` class in the file `stock.py` so that it uses typed properties
as shown.

[Contents](../Contents.md) \| [Previous (7.2 Anonymous Functions)](02_Anonymous_function.md) \| [Next (7.4 Decorators)](04_Function_decorators.md)

## 关联来源

- [[summaries/03_Returning_functions]]