Re: Is there a way to implement the ** operator on a custom object

On 09Feb2024 18:56, Left Right wrote: But, more to the point: extending collections.abc.Mapping may or may not be possible in OP's case. We don't yet know if that's what the OP had in mind yet, anyway. Also, if you are doing this through inheritance, this seems really convoluted: why not jus

Re: Is there a way to implement the ** operator on a custom object

> Looks like it can simply be done in Python, no tp_as_mapping needed. It's not that it isn't needed. You've just shown a way to add it using Python code. But, more to the point: extending collections.abc.Mapping may or may not be possible in OP's case. Also, if you are doing this through inheri

Re: Is there a way to implement the ** operator on a custom object

Left Right via Python-list schreef op 9/02/2024 om 17:09: In order for the "splat" operator to work, the type of the object must populate slot `tp_as_mapping` with a struct of this type: https://docs.python.org/3/c-api/typeobj.html#c.PyMappingMethods and have some non-null implementations of the

Re: Is there a way to implement the ** operator on a custom object

In order for the "splat" operator to work, the type of the object must populate slot `tp_as_mapping` with a struct of this type: https://docs.python.org/3/c-api/typeobj.html#c.PyMappingMethods and have some non-null implementations of the methods this struct is supposed to contain. I can do this i

Re: Is there a way to implement the ** operator on a custom object

Chris Angelico writes: > On 08Feb2024 12:21, tony.fl...@btinternet.com wrote: > >I know that mappings by default support the ** operator, to unpack the > >mapping into key word arguments. > > > >Has it been considered implementing a dunder method for the ** > >operator so you