Alan Gauld wrote:
"David" <bouncingc...@gmail.com> wrote
clever enough to refuse to instantiate itself if a necessary condition
is not met.
class MyClass_2(object):
def __new__(self, condition):
if condition:
return object.__new__(self)
else:
return None
Thats pretty much how I'd do it.
By convention, the name of the first argument to __new__ is cls, not
self, because it is bound to the class object itself (MyClass_2 in this
example) rather than the instance. The instance doesn't yet exist, so
that's not surprising!
--
Steven
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