initializing mutable class attributes
Anthony Baxter
anthonybaxter at gmail.com
Wed Sep 1 11:14:56 EDT 2004
On Wed, 01 Sep 2004 14:54:06 GMT, Dan Perl <dperl at rogers.com> wrote:
> Not in Python. A user of my library has to invoke the parent's class
> __init__ in their own __init__. What happens if, in a future release, I get
> rid of the __init__ in the parent class? Or the other way around. An early
> release does not have a parent __init__, the users don't invoke it because
> they can't, and then, in a future release, I add the parent __init__ because
> I added some attributes. It breaks all the users' code. This is poor
> encapsulation.
Use 'super()', in that case.
http://www.python.org/dev/doc/devel/lib/built-in-funcs.html#l2h-70
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