Erik Max Francis wrote:
>Pierre Barbier de Reuille wrote:
>
>
>
>>When you need some symbols in your program, what do you use in Python ?
>>
>>For example, an object get a state. This state is more readable if
>>expressed as a symbols, for example "opened", "closed", "error".
>>Typically, in C or C++, I would use an enum for that:
>>enum OBJECT_STATE
>>{
>> opened, closed, error
>>}
>>
>>
>
> OPENED, CLOSED, ERROR = range(3)
>
> object.state = OPENED
>
>
Another similar approach that keeps those values together in a single
namespace is this (my favorite):
class State:
OPENED, CLOSED, ERROR = range(3)
Then you can refer to the values as
State.OPENED
State.CLOSED
State.ERROR
The extra clarity (and slight wordiness) of the dotted notation seems,
somehow, quite Pythonic to me.
Gary Herron
--
Gary Herron, PhD.
Department of Computer Science
DigiPen Institute of Technology
(425) 895-4418
--
http://mail.python.org/mailman/listinfo/python-list
