Steven Bethard wrote:
> John J. Lee wrote:
>
>> It seems nice to do this
>>
>> class Klass:
>>
>> def _makeLoudNoise(self, *blah):
>> ...
>>
>> woof = _makeLoudNoise
>
> Out of curiosity, why do you want to do this?
There aren't too many clear use cases, but I've found it useful from
time to time. Usually it comes in handy when you're specializing some
predefined behavior, often when relying on introspection in some fashion.
For instance, for a chat network bot framework, a certain form of bot
will look for any attribute in its instance that starts with verb_ and a
command and execute it when it hears it spoken:
def verb_hello(self, convo):
"Respond to a greeting."
convo.respond(random.choice(self.greetings))
If you'd like it to respond to more than one word like this, then you
only need to assign the additional verbs, rather than redefine them:
verb_hi = verb_hello
verb_yo = verb_hello
verb_wazzup = verb_hello
It actually does more than this, where a builtin help system (verb_help)
which relies on the docstrings of the verb_... methods will allow you to
get help on any defined verb automatically, and list the known verbs
when supplied without arguments. But this would list duplicate verbs
for the aliases (hi, yo, wazzup) above, which isn't optimal. So instead
I have another prefix, alias_, which acts as a verb, but won't be
automatically scanned as a verb when help is finding the list of valid
verbs:
alias_hi = verb_hello
...
That way, you get maximum effectiveness for minimum clutter.
--
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