ANN: Dogelog Runtime, Prolog to the Moon (2021)

[Mostowski Collapse]

sympy also builds a language on top of Python.
pandas also builds a language on top of Python.

Is there some pope that says this wouldn't be
allowed, I dont think so, otherwise sympy, pandas, etc..

wouldn't exist. I dont understand your argument.

Chris Angelico schrieb:
> On Mon, Sep 20, 2021 at 3:19 AM Mostowski Collapse <janburse at fastmail.fm> wrote:
>>
>> I am refering to:
>>
>> Greg Ewing schrieb:
>>   > where [w] is a weak reference object. Then you could periodically
>>   > scan the trail looking for dead weakref objects and remove the
>>   > corresponding [*] node from the list.
>>   >
>>   > You can also attach callbacks to weakref objects that are triggered
>>   > when the referenced object dies. You might be able to make use of
>>   > that to remove items from the trail instead of the periodic scanning.
>>
>> Question to Chris Angelico: If I stay with my
>> sweep_trail(), which is the periodically scanning,
>> I can use a single linked list.
>>
>> On the other hand if I would use the trigger
>> from Python, I possibly would need a double linked
>> list, to remove an element.
>>
>> Chris Angelico, is there a third option, that I have
>> overlooked? Single linked list uses less space
>> than double linked list, this why I go with scan.
>>
> 
> I don't know. I don't understand your code well enough to offer advice
> like that, because *your code is too complicated* and not nearly clear
> enough.
> 
> But however it is that you're doing things, the best way is almost
> always to directly refer to objects. Don't fiddle around with creating
> your own concept of a doubly-linked list and a set of objects; just
> refer directly to the objects. Let Python be Python, don't try to
> build your own language on top of it.
> 
> ChrisA
>