FEEDBACK WANTED: Type/class unification
markus at schabi.de
Thu Aug 2 17:43:02 CEST 2001
Guido van Rossum <guido at python.org> schrub:
> [...] We could easily have a shortcut that creates a pair of accessor
> functions to map a public attribute name to a private attribute, but
> what good would it do us? You only need to use accessor functions
> when you want additional functionality.
Yes, and in some cases, I only want to add functionality to one of the
Imagine that you want to increase a read counter when getting an
attribute, i. E. when you try to implement some LRU caching
Or one would want to restrict access to an object, or do some
calculations every get.
Another case would be performing checks or calculations needed when
setting an attribute, but reading is just "straight forward".
In those cases, you could use the shortcut for the other accessor
function to create it implicitly.
Another idea may be to provide both standard accessor functions so that
subclasses may easily override one or the other.
Defend democrathy and freedom!
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