Dynamic use of property() fails

[Hrvoje Niksic]

Bruno Desthuilliers <bruno.42.desthuilliers at websiteburo.invalid>
writes:

>> However, if you know what you're doing, you can simply customize your
>> class's __getattribute__ to do what *you* want for your objects.
>
> <op>
> But bear in mind that, beside possible unwanted side-effectn, you'll
> get a non-negligible performance hit - __getattribute__ being, as the
> name implies, invoked on each and every attribute lookup.

That's unavoidable, though -- whatever you do to customize your class
in Python, the result will be slower than the C code built into
Python.  Fortunately, not every object is performance-critical.  In
this case, __getattribute__ buys you per-instance customization not
otherwise available.  The code you posted is probably more efficient,
but at the cost of losing the ability to customize specific instances
of the class.