[Python-Dev] Draft proposal: Implicit self in Python 3.0

Fri Jan 6 13:10:41 CET 2006

 > Example 1 (Python 2.x):
 > -----------------------
 >
 > class Foo:
 > def __init__(self, x): # 1: Explicit 'self' argument
 > self.x = x # 2: 'self' must be used explicitly
 > def bar(self, a, b): # 3: There are three arguments...
 > print self.x + a + b
 >
 > Foo(10).bar(20, 30) # ...but only two explicit parameters
 > # is presented
 >
 > This document proposes to change this, as the next example shows:
 >
 > Example 2 (Python 3.0):
 > -----------------------
 >
 > class Foo:
 > def __init__(x): # 1: Implicit self
 > .x = x # 2: Brief form of: self.x = x
 > def bar(a, b): # 3: Two arguments...
 > print .x + a + b
 >
 > Foo(10).bar(20, 30) # ...and exactly two parameters
In my case, I think that the problem of _self_ is mainly in the method 
definition. It's a little "hard" to understand why you have to use 
myFunction(self, otherArgs) when you create a class method. But the use 
of self in the code of the method is a good thing because it allow you 
to clearly say that you are working on a class property. In my case, I 
would like to have the following syntax in Python 3.0 :
class Foo:
 def __init__(x):
	self.x = x
 def bar(a, b):
	print self.x + a + b
My 0.2€ ;)
-- 
Fabien SCHWOB