#!/usr/bin/env python
# coding: utf-8

# <!--NAVIGATION-->
# < [Widgets Events](05.00-Widget_Events.ipynb) | [Contents](00.00-index.ipynb) | [*OPTIONAL* Password generator: `observe`](05.02-OPTIONAL-Widget_Events_2_--_bad_password_generator,_version_1.ipynb) >

# # *OPTIONAL* Three approaches to events

# The next series of notebooks presents three ways of handling widget events. In each of the notebooks we'll construct the same simple password generator.
# 
# The first uses a mix of functions and global variables, an approach like that in the notebook introducing widget events.
# 
# The second separates the logic of the password generation from the password generation user interface.
# 
# The third takes that separation a step further by using a class for the user interface, a class for the logic, and a class to bring them together.

# <!--NAVIGATION-->
# < [Widgets Events](05.00-Widget_Events.ipynb) | [Contents](00.00-index.ipynb) | [*OPTIONAL* Password generator: `observe`](05.02-OPTIONAL-Widget_Events_2_--_bad_password_generator,_version_1.ipynb) >