[Tutor] Looking for Constructs to Remove Redundant Code

[Kent Johnson]

Ilias Lazaridis wrote:
> I have this python code
> 
> class Car:
>      """Type of car."""
> 
>      manufacturer = f.string()
>      model = f.string()
>      modelYear = f.integer()
> 
>      _key(manufacturer, model, modelYear)
> 
>      def __str__(self):
>          return '%s %s %s' % (self.modelYear, self.manufacturer, self.model)

What is f.string()? What is _key()? Are you using a metaclass here? Did 
you intentionally omit an __init__() method? If this is working code 
there is a lot you are not showing.

> and would like to see it e.g. this way:
> 
> class Car:
>      """Type of car."""
> 
>      manufacturer = f.string(true, str=2)
>      model = f.string(true, str=3)
>      modelYear = f.integer(true, str=1)
> 
> -
> 
> how would the factory method look like?
> 
> def string(self, key, str )
>      # create somehow the __str__ function
>      # create somehow the key

This would go in your metaclass __init__ I think. But hard to say 
without more details.

Kent