On 23/04/19 10:08 PM, Steven D'Aprano wrote:
On Tue, Apr 23, 2019 at 08:27:15PM +0530, Arup Rakshit wrote:
You probably want:
def __init__(self, list=None):
if list is None:
list = []
self.list = list
That is really a new thing to me. I didn't know. Why
On Tue, Apr 23, 2019 at 08:27:15PM +0530, Arup Rakshit wrote:
> >You probably want:
> >
> > def __init__(self, list=None):
> > if list is None:
> > list = []
> > self.list = list
>
> That is really a new thing to me. I didn't know. Why list=None in the
> param
On 4/23/19 8:57 AM, Arup Rakshit wrote:
> On 23/04/19 3:40 PM, Steven D'Aprano wrote:
>> Watch out here, you have a mutable default value, that probably doesn't
>> work the way you expect. The default value is created ONCE, and then
>> shared, so if you do this:
>>
>> a = MyCustomList() # Use the
On 23/04/19 3:40 PM, Steven D'Aprano wrote:
Watch out here, you have a mutable default value, that probably doesn't
work the way you expect. The default value is created ONCE, and then
shared, so if you do this:
a = MyCustomList() # Use the default list.
b = MyCustomList() # Shares the same de
On Tue, Apr 23, 2019 at 11:46:58AM +0530, Arup Rakshit wrote:
> Hi,
>
> I wrote below 2 classes to explore how __getitem__(self,k) works in
> conjuection with list subscriptions. Both code works. Now my questions
> which way the community encourages more in Python: if isinstance(key,
> slice):
On 23/04/2019 07:16, Arup Rakshit wrote:
> which way the community encourages more in Python: if isinstance(key,
> slice): or if type(key) == slice: ?
I think isinstance is usually preferred although I confess
that I usually forget and use type()... But isinstance covers
you for subclasses too.
Hi,
I wrote below 2 classes to explore how __getitem__(self,k) works in
conjuection with list subscriptions. Both code works. Now my questions
which way the community encourages more in Python: if isinstance(key,
slice): or if type(key) == slice: ? How should I implement this if I
follow duck
