On 21Jun2023 10:09, Chris Angelico wrote:
On Wed, 21 Jun 2023 at 09:59, Cameron Simpson via Python-list
wrote:
I wasted some time the other evening on an API which returned a
string
or None. My own API, and the pain it caused tells me that that API
design choice isn't good (it's an automatic
On Wed, 21 Jun 2023 at 09:59, Cameron Simpson via Python-list
wrote:
> I wasted some time the other evening on an API which returned a string
> or None. My own API, and the pain it caused tells me that that API
> design choice isn't good (it's an automatic attribute based on a tag,
> returning
On 21Jun2023 03:01, Greg Ewing wrote:
On 20/06/23 7:36 pm, Barry wrote:
I have some APIs that do return None or a list.
The None says that a list is not available and that the caller is
responsible with dealing in a application-domain specific with
with that situation.
In that case, the
On Wed, 21 Jun 2023 at 03:46, Igor Berger via Python-list
wrote:
> Most of the regulars in this list/group read the posts using the mailing list
> and
> have declared that they explicitly filter out anything posted on Google
> Groups.
>
> I've seen it multiple times with your posts. You respond
Op 20/06/2023 om 2:50 schreef Greg Ewing via Python-list:
I would question the wisdom of designing an API that
can return either a sequence or None. If it normally
returns a sequence, and there are no items to return,
it should return an empty sequence.
I guess it depends on the reason why there
On Monday, June 19, 2023 at 4:11:15 PM UTC-4, Julio Di Egidio wrote:
> On Monday, 19 June 2023 at 21:58:21 UTC+2, dn wrote:
> > On 20/06/2023 06.12, Neal Becker via Python-list wrote:
>
> > > I prefer iteration of None to be an error, as in my usage it usually
> > > indicates a mistake that
On 20/06/23 7:36 pm, Barry wrote:
I have some APIs that do return None or a list.
The None says that a list is not available and that the caller is
responsible with dealing in a application-domain specific with
with that situation.
In that case, the caller should probably be checking for
None
> On 20 Jun 2023, at 01:57, Greg Ewing via Python-list
> wrote:
>
> I would question the wisdom of designing an API that
> can return either a sequence or None.
I have some APIs that do return None or a list.
The None says that a list is not available and that the caller is
responsible with
I would question the wisdom of designing an API that
can return either a sequence or None. If it normally
returns a sequence, and there are no items to return,
it should return an empty sequence.
--
Greg
--
https://mail.python.org/mailman/listinfo/python-list
On 20/06/2023 06.12, Neal Becker via Python-list wrote:
On Mon, Jun 19, 2023 at 12:42 PM Chris Angelico via Python-list <
python-list@python.org> wrote:
On Tue, 20 Jun 2023 at 02:37, Peter Bona via Python-list
wrote:
Hi
I am wondering if there has been any discussion why NoneType is not
On Mon, Jun 19, 2023 at 12:42 PM Chris Angelico via Python-list <
python-list@python.org> wrote:
> On Tue, 20 Jun 2023 at 02:37, Peter Bona via Python-list
> wrote:
> >
> > Hi
> >
> > I am wondering if there has been any discussion why NoneType is not
> iterable My feeling is that it should be.
On Tue, 20 Jun 2023 at 02:37, Peter Bona via Python-list
wrote:
>
> Hi
>
> I am wondering if there has been any discussion why NoneType is not iterable
> My feeling is that it should be.
> Sometimes I am using API calls which return None.
> If there is a return value (which is iterable) I am
Hi
I am wondering if there has been any discussion why NoneType is not iterable
My feeling is that it should be.
Sometimes I am using API calls which return None.
If there is a return value (which is iterable) I am using a for loop to iterate.
Now I am getting 'TypeError: 'NoneType' object is
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