On 25/06/2010 19:23, WANG Cong wrote:
On 06/25/10 14:31, Richard Thomas<chards...@gmail.com> wrote:
<snip>
If you desperately want to limit the attribute assignments that can be
performed on an object you can set the __slots__ attribute of its
type. However, the Python ethos has always been to restrict as little
as necessary to provide the tools it needs. Performing additional
checks every time an attribute assignment is performed is completely
unnecessary. Remember that unlike C these checks would have to be
performed at run-time.
I don't care in which way I can limit this, I care why I should limit
this by default, not vice versa?
Yeah, I do understand this could be a performance issue, but comparing
it with a language design issue, _I think_ the latter thing is much more
important than the former one.
Blimey, one minute we're talking about "Python dynamic attribute
creation", the next it's a performance issue. What do you want, blood
on it?
Kindest regards.
Mark Lawrence.
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