On Mar 31, 8:49 am, "Frank Millman" wrote:
Hi all
Thanks to all for the helpful replies.
Rob, you are correct, I had not realised I was adding attributes to the
class instead of the instance. Your alternative does work correctly. Thanks.
Carl, I understand your concern about modifying attr
"Frank Millman" writes:
class MyList(list):
> ... def __new__(cls, names, values):
> ... for name, value in zip(names, values):
> ... setattr(cls, name, value)
> ... return list.__new__(cls, values)
Did you really mean to setattr the class here? If I'm guessing
your intenti
On Mar 31, 2:02 am, Rob Williscroft wrote:
> Frank Millman wrote in news:mailman.1360.1270018159.23598.python-
> l...@python.org in comp.lang.python:
>
> > I came up with a simple solution that seems to work -
>
> class MyTuple(tuple):
> > ... def __new__(cls, names, values):
> > ... fo
Frank Millman wrote in news:mailman.1360.1270018159.23598.python-
l...@python.org in comp.lang.python:
> I came up with a simple solution that seems to work -
>
class MyTuple(tuple):
> ... def __new__(cls, names, values):
> ... for name, value in zip(names, values):
> ... setattr
lbolla a écrit :
class MyList(list):
def __init__(self, names, values):
list.__init__(self, values)
for name, value in zip(names, values):
setattr(self, name, value)
names = ['A', 'B', 'C']
values = ['a', 'b', 'c']
lst = MyList(na
"lbolla" wrote in message
news:f8011c0b-0b1b-4a4f-94ff-304c16ef9...@q16g2000yqq.googlegroups.com...
On Mar 31, 7:49 am, "Frank Millman" wrote:
Hi all
When subclassing immutable types, you need to override __new__;
otherwise you need to override __init__.
Perfect. Thanks very much.
Fra
On Mar 31, 7:49 am, "Frank Millman" wrote:
> Hi all
>
> I needed something similar to, but not quite the same as,
> collections.namedtuple.
>
> The differences are that namedtuple requires the 'names' to be provided at
> creation time, and then lends itself to creating multiple instances of
> itse
Hi all
I needed something similar to, but not quite the same as,
collections.namedtuple.
The differences are that namedtuple requires the 'names' to be provided at
creation time, and then lends itself to creating multiple instances of
itself. I wanted a more generic class where I could suppl
