Basic attribute processing

By default, any class we create will permit the following four behaviors with respect to attributes:

• To create a new attribute and set its value
• To set the value of an existing attribute
• To get the value of an attribute
• To delete an attribute

We can experiment with this using something as simple as the following code. We can create a simple, generic class and an object of that class:

>>> class Generic: 
...     pass 
...      
>>> g = Generic() 

The preceding code permits us to create, get, set, and delete attributes. We can easily create and get an attribute. The following are some examples:

>>> g.attribute = "value" 
>>> g.attribute 
'value' 
>>> g.unset 
Traceback (most recent call last): 
  File "<stdin>", line 1, in <module> 
AttributeError: 'Generic&apos...