class problem, NoneType obj has no attribute

[Bruno Desthuilliers]

globalrev a écrit :
> wassup here?
> 
> 
> 7
> 
> Traceback (most recent call last):
>   File "C:\Python25\myPrograms\netflix\netflix.py", line 22, in
> <module>
>     print cust1.getID()
> AttributeError: 'NoneType' object has no attribute 'getID'
> 
> 
> 
> class customer:

1/ naming convention : class names should be CamelCased
2/ unless you need compatibility with years old Python versions, use 
newstyle classes

class Customer(object):

>     def __init__(self, ID, movies):
>         self.ID = ID
>         self.movies = movies

3/ naming conventions : ALL_UPPER_NAMES denote (pseudo) constants

     def __init__(self, id, movies):
         self.id = id
         self.movies = movies

>     def getID():
>         return self.ID
> 
>     def getMovies():
>         return self.movies

4/ Python has support for computed attributes, so you just don't need 
these getters.

> 
> import os
> import customer
> import movie
> 
> mv1 = open('C:\\Python25\\myPrograms\\netflix\\mv1exp2.txt', 'r+')
> mv1str = mv1.read()
> 
> print mv1str.count(',5,')
> 
> cust1 = customer.__init__('12',['1','435','2332'])

__init__ is automagically called on instanciation, so you don't have to 
call it yourself. And FWIW, your __init__ returns None.

cust1 = Customer('12', ['1', '435', '2332'])

> print cust1.getID()

print cust1.id