Mark Amery added the comment:
I'm aware of __missing__. However, I don't think its existence is by itself a
knockdown argument against doing this. __missing__ also fulfils the need
satisfied by defaultdict, yet Python still has both - and the latter is almost
always more conveni
New submission from Mark Amery :
There seems to be at least some demand for the ability to have the key being
accessed be passed to the factory function of a defaultdict. See e.g.
https://stackoverflow.com/q/2912231/1709587 (13k views) or previous enhancement
suggestion https
New submission from Mark Amery :
PEP 257 says:
> Please see PEP 258, "Docutils Design Specification" [2], for a detailed
> description of attribute and additional docstrings.
But PEP 258 is rejected. It doesn't seem coherent that an active PEP can defer
some of its deta
