On Thu, 20 Sep 2007 14:52:50 +1000, Ben Finney wrote:
> Can you give a code example of how you think mixins should be
> implemented in Python, assuming the absence of multiple inheritance?
I'll take a shot at it... use automatic delegation to the mixin class.
class Parrot(object):
def fl
On Sep 20, 6:52 am, Ben Finney <[EMAIL PROTECTED]>
wrote:
> Michele Simionato <[EMAIL PROTECTED]> writes:
> > Since the language we have does have multiple inheritance, let's
> > use it to implement mixins.
> > ...
> > So, multiple inheritance is giving us very little for the point of
> > view of m
On Sep 20, 6:52 am, Ben Finney <[EMAIL PROTECTED]>
wrote:
> Michele Simionato <[EMAIL PROTECTED]> writes:
> > Since the language we have does have multiple inheritance, let's
> > use it to implement mixins.
> > ...
> > So, multiple inheritance is giving us very little for the point of
> > view of m
Michele Simionato <[EMAIL PROTECTED]> writes:
> Since the language we have does have multiple inheritance, let's
> use it to implement mixins.
> ...
> So, multiple inheritance is giving us very little for the point of
> view of mixins; OTOH, multiple inheritance is giving us a lot of
> headaches f
On Sep 20, 5:41 am, Ben Finney <[EMAIL PROTECTED]>
wrote:
> Michele Simionato <[EMAIL PROTECTED]> writes:
> > Ben Finney wrote:
> > > What do you see as an appropriate use of mixin classes, and what
> > > an abuse?
>
> > An example of fine usage of mixin is Tkinter; an example of bad
> > usage if Z
On Sep 20, 5:41 am, Ben Finney <[EMAIL PROTECTED]>
wrote:
> Okay. How do we use the language we have to achieve what mixin classes
> achieve in Ruby? Can you give an code example that you *would*
> recommend for someone looking to do what mixin classes do?
Since the language we have does have mult
Michele Simionato <[EMAIL PROTECTED]> writes:
> Ben Finney wrote:
> > What do you see as an appropriate use of mixin classes, and what
> > an abuse?
>
> An example of fine usage of mixin is Tkinter; an example of bad
> usage if Zope 2.
Which parts of those two very large code sets do I need to l
Michele Simionato <[EMAIL PROTECTED]> writes:
> It is already possible to use a syntax like this
>
> class MyClass(Base):
> mixin(Mixin1, Mixin2, ...)
>
> using P.J. Eby's trick for implementing what he calls class
> decorators (see also
> http://www.phyast.pitt.edu/~micheles/python/classin
On Sep 20, 4:55 am, Ben Finney <[EMAIL PROTECTED]>
wrote:
> Michele Simionato <[EMAIL PROTECTED]> writes:
> > I am not against mixins (even if I am certainly very much against
> > the *abuse* of mixins, such as in Zope 2). What I would advocate
> > (but I realize that it will never happen in Python
Michele Simionato <[EMAIL PROTECTED]> writes:
> I am not against mixins (even if I am certainly very much against
> the *abuse* of mixins, such as in Zope 2). What I would advocate
> (but I realize that it will never happen in Python) is single
> inheritance + mixins a la Ruby.
For those unfamili
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