On 2/11/11 9:06 AM, christian.posta wrote:
I searched quickly to see whether this may have been discussed before,
but it's possible my search criteria was not refined enough to get any
hits. Forgive me if this is a silly question..
I was reading some Python code from a third-party app for the django
project... i saw this in the code and I wasn't certain what it means,
nor could I find anything helpful from google.
Within the __call__ function for a class, I saw a method of that class
referred to like this:
*self.<method_name_here>()
The brackets indicate the method name.
What does the *self refer to??
Does it somehow indicate the scope of the 'self' variable?
Can you show the whole statement? Most likely, this was embedded in some other
call, e.g.:
foo(*self.method())
If this is the case, the * does not bind to "self"; it binds to all of
(self.method()), i.e.:
foo(*(self.method()))
This is just the foo(*args) syntax that unpacks a tuple into individual
arguments to pass to foo().
http://docs.python.org/tutorial/controlflow.html#unpacking-argument-lists
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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