>> self is a special varianble
> "special variable" could be confusing. Python has no "special
> variables". "self" is used by convention.
Good point. The name self is not special it is its role that is
special.
thus
class C:
def m(s,p):
print p
c = C()
c.m(42)
Thus we define method m to have two parameters s and p
but when we call m we only pass in one argument. Python
then takes this and turns it into
C.m(c,42)
The specialness of 'self' is that although we specify it, and can
access it,
in the method definition we do not specify it in the message to the
class
that invokes the method.
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld
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