[Python-ideas] PEP 484 evolution

[Rick Johnson]

On Friday, March 18, 2016 at 5:59:42 PM UTC-5, Ryan Gonzalez wrote:
> Neither! Python 3 type hints are just function
> annotations. It's the job of a type checker/linter (like
> mypy) to actually decipher the annotations as types.
> Adding/removing type hints won't have a runtime effect on
> your program.

Thanks for explaining -- i now understand what's going on
here... So even though type-hints are "interleaved within the
code", at run-time, they have no meaning, and are simply
ignored as if they were comments -- it's my worst nightmare
come true -- starting with Python 3.5, the readability of
Python source will never be the same again. And while i
understand that type-hints are optional, once they placed in
the code, it is impossible not to be forced to read them. 

> I think the latter [code example you provided] is for Python 2.

Hmm, being that Guido said his "list of issues" was relevant
only to 3.5.2, that would not make sense to me. But perhaps i'm
missing something again???

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