[Python-ideas] Proposal: Use mypy syntax for function annotations

[Ben Finney]

Christian Heimes <christian at python.org>
writes:

> 1) I'm not keen with the naming of mypy's typing classes. The visual
> distinction between e.g. dict() and Dict() is too small and IMHO
> confusing for newcomers. How about an additional 'T' prefix to make
> clear that the objects are referring to typing objects?

To this reader, ‘dict’ and ‘list’ *are* “typing objects” — they are
objects that are types. Seeing code that referred to something else as
“typing objects” would be an infitation to confusion, IMO.

You could argue “that's because you don't know the special meaning of
“typing object” being discussed here”. To which my response would be,
for a proposal to add something else as meaningful Python syntax, the
jargon is poorly chosen and needlessly confusing with established terms
in Python.

If there's going to be a distinction between the types (‘dict’, ‘list’,
etc.) and something else, I'd prefer it to be based on a clearer
terminology distinction.

-- 
 \         “Simplicity and elegance are unpopular because they require |
  `\           hard work and discipline to achieve and education to be |
_o__)                                appreciated.” —Edsger W. Dijkstra |
Ben Finney