On Mon, Oct 7, 2019 at 8:34 PM Steven D'Aprano steve@pearwood.info wrote:
On Mon, Oct 07, 2019 at 02:22:22PM +0100, Rhodri James wrote:
On 04/10/2019 20:34, Caleb Donovick wrote:
where_x_1 = db[x=1]which would be equivalent to the existing syntax
where_x_1 = db[{'x': 1}]
[Rhodi]
OK, I'm not sure what you're trying to do here, which all on its own says that what you're doing isn't self-explanatory.
I think it is pretty self-explanatory. Caleb wants to allow passing arguments to ``__getitem__`` by keyword, not just position.
Subscripting obj[x] is, effectively, an alternate form of function call syntax with a number of differences and restrictions compared to obj(x):
calls the ``__getitem__`` dunder instead of ``__call__`` dunder
by convention, is supposed to be used for item indexing, key lookups, and type annotations, rather than arbitrary uses
the syntax is different, and highly restricted, compared to regular function calls:
- there is no zero-argument form
d[...]