Christopher Spears wrote:
> Thanks to all of the tutors on this mailing list! I'm
> finally making some headway! I originally decided to
> tackle my problem one operator at a time:
>
> class MyList:
> def __init__(self, aList=None):
> if aList is None:
> self.mylist = []
> else:
> self.mylist = aList[:]
> def __getitem__(self, index):
> return self.mylist[index]
>
> However, I got the following error:
>
>
>>>>from MyList import *
>>>>x = MyList([1,2,3])
>>>>x[0]
>
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> File "MyList.py", line 8, in __getitem__
> self.mylist[index]
> AttributeError: MyList instance has no attribute
> '__setitem__'
Strange. It works for me. Are you sure there is nothing else in MyList.py?
D:\>type MyList.py
class MyList:
def __init__(self, aList=None):
if aList is None:
self.mylist = []
else:
self.mylist = aList[:]
def __getitem__(self, index):
return self.mylist[index]
D:\>python
Python 2.4.2 (#67, Sep 28 2005, 12:41:11) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from MyList import *
>>> m=MyList([0,1,2])
>>> m[0]
0
>>> m[1]
1
Kent
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