Instructions in book don't work

[Mike C. Fletcher]

The initialiser is indicated with a special name and must be exactly the 
following name "__init__".  That is, it is two "_" characters, followed 
by "init", followed by two "_" characters.

You only have one "_" character before and after, so you haven't created 
an __init__ method, but an _init_ method.  Since there is a default 
"__init__" method present for all classes, that is getting used, and 
it's definition is something like this:
def __init__( self ):
	pass

So the error is saying: sorry, the default __init__ method takes no 
arguments.

Hope this helps,
Mike

Dan Hamm wrote:

> This is my very first attempt at using a newsgroup, so please bear with 
> me. I am totally new to programming, and picked up the book "Lean to 
> Program Using Python" by Alan Gauld. The problem I am trying to solve is 
> this:
> 
>  
> 
> On page 51 the author shows demonstration code for setting up a class -
> 
>  
> 
>  >>> class Address:
> ...  def _init_(self, Hs, St, Town, Zip):
> ...     self.Hs_Number = Hs
> ...     self.Street = St
> ...     self.Town = Town
> ...     self.Zip_Code = Zip
> 
>  
> 
> Then follows it up with the instructions to type in the following -
> 
>  
> 
>  >>> addr = Address(7,"High St.","Anytown","12345")
> 
>  >>> print addr.Hs_Number, addr.Street
> 
>  
> 
> My problem is when I type the first line of the second set of 
> instructions (addr = Address(7, ...) I get the following error -
> 
>  
> 
> Traceback (most recent call last):
>   File "<interactive input>", line 1, in ?
> TypeError: this constructor takes no arguments
> 
>  
> 
> I've checked to make sure I copied exactly what was in the book, but it 
> just doesn't seem to work. Can anyone tell me where I went wrong?
> 


-- 
_______________________________________
   Mike C. Fletcher
   http://members.rogers.com/mcfletch/