On 04/04/2013 08:01 AM, Chris Angelico wrote:
On Fri, Apr 5, 2013 at 1:59 AM, Guido van Rossum <gu...@python.org> wrote:
On Thu, Apr 4, 2013 at 7:47 AM, Chris Angelico <ros...@gmail.com> wrote:
Is there any argument that I can pass to Foo() to get back a Bar()?
Would anyone expect there to be one? Sure, I could override __new__ to
do stupid things, but in terms of logical expectations, I'd expect
that Foo(x) will return a Foo object, not a Bar object. Why should int
be any different? What have I missed here?
A class can define a __new__ method that returns a different object. E.g.
(python 3):
Right, I'm aware it's possible. But who would expect it of a class?
FTR I'm in the int() should return an int camp, but to answer your question: my dbf module has a Table class, but it
returns either a Db3Table, FpTable, VfpTable, or ClpTable depending on arguments (if creating a new one) or the type of
the table in the existing dbf file.
--
~Ethan~
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