"Michael Tobis" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> I'd like to dynamically add a method to an instance at
> instantiation time.
No can do. A method is function that is an attribute of a class, even if
accessed via an instance. A function added to an instance as an attribute
of the instance remains a function. It is instance-specific data that
methods and other code can use, just like other instance data, for
instance-specific effects. Two common examples:
class composer:
# skip obvious init
def __call__(self, x): return self.outer(self.inner(x))
sincos = composer(math.sin, math.cos)
# yes, this can also be done with composer function with nested scope
class memoizer: # posted several times
# skip init again
def __call__(self,x):
# return previously computed self.memodict[x] if it exists
# or calculate, store, and return self.func(x)
\> PS - any idea how to get past google's stupid formatting these days? I
> thought they were supposed to like python, but they just ignore leading
> blanks.
Don't use google to post on clp. Go to news.gmane.org instead.
Terry J. Reedy
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