Constructor and Method Parameters

Question

I am writing a URL router in Python 3.1 and wondering if it is more than a taste to use one of the following options:

Tuples as constructor parameters:

router = Router( 
    (r"/item/{id}", ItemResource()),
    (r"/article/{title}", ArticleResource())
)

Method call

router = Router()
router.connect(r"/item/{id}", ItemResource())
router.connect(r"/article/{title}", ArticleResource())

Do you see any advantages or disadvantages here?

Answer 1

I prefer passing tuples to the constructor for two reasons that Alex did not mention (at least not explicitly).

• readability. If accessible to any code reader, that Router instance requires a route list to be accessible.

• Lose traction. Client code should not bother initializing router instances. This is the responsibility of the Router class.

, Router Router.__init__. , RoutesList:

routes = RoutesList((r"/item/{id}", ItemResource()),
                    (r"/article/{title}", ArticleResource()))

router = Router(routes)

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, ;)

Answer 2

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Answer 3

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Answer 4

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