[Python-ideas] Decorator to avoid a mistake

[Stephen J. Turnbull]

Steven D'Aprano writes:

 > Sometimes I think Python-as-a-teaching-language and Python-as-a- 
 > production-language are strongly opposed.

I haven't found that to be the case.  Linters are quite effective, as
long as you discipline the students to use them.  I don't think this
check is in the linters I use, and if not I'd like to see it added,
though.

 > I wonder whether there might be a case to be made for a
 > --with-training-wheels option?

You could make it, but I can't imagine any argument that doesn't
immediately fall prey to

 > But that's better placed in the IDE, not the core language.

Maybe my imagination is just poor, but I think the burden of proof is
on those who would add --with-training-wheels to the implementation.
(N.B. This is an implementation issue, not something that would be in
the language spec! :-)