"Calvin Spealman" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On 17 Sep 2006 09:22:16 -0700, Ilias Lazaridis <[EMAIL PROTECTED]> > wrote: >> I understand that I can use __metaclass__ to create a class which >> modifies the behaviour of another class. >> >> How can I add this metaclass to *all* classes in the system? >> >> (In ruby I would alter the "Class" class) > > This is a terrible idea. When my, Joe Modulewriter, released my > library of AwesomeCoolClasses, i except my metaclass to be something > particular and if it starts getting wonky and I do anything hackery on > my end with the types, then the end-user's computer might 'splode! > > What I am trying to say, is its a terrible idea to go changing other > peoples' classes at runtime without knowing the real affects of what > is going on. If you are just going to shoot yourself in the foot, why > should we even give you a gun?
Reminds me of when I was learning Smalltalk, and modified printOn (ST's equivalent of str()) of the root-of-all-classes object class. I don't remember the exact error I made, but it was a mess undoing it! -- Paul -- http://mail.python.org/mailman/listinfo/python-list
