[Python-ideas] Trial balloon: adding variable type declarations in support of PEP 484

[Brendan Barnwell]

On 2016-08-04 12:09, Alexander Belopolsky wrote:
 > On Thu, Aug 4, 2016 at 2:33 PM, Brendan Barnwell 
<brenbarn at brenbarn.net> wrote:
 >> It seems odd to have Python syntax that not only doesn't do 
anything, but
 >> can't even be made to do anything by the program itself when it runs.
 >
 > Why do you find this odd?  Python already has #-comment syntax with
 > exactly the property you complain about.  Think of local variable
 > annotation as a structured comment syntax.

	Exactly.  But the existing comment annotations (# type: float) already 
are structured comment syntax, so what does this new one add?  (Note we 
already have at least one parallel --- although it is much more limited 
in scope --- namely encoding declarations, which are also done within 
existing comment syntax, rather than having their own "real" syntax.)

-- 
Brendan Barnwell
"Do not follow where the path may lead.  Go, instead, where there is no 
path, and leave a trail."
    --author unknown