On 2018-03-23 06:01, Chris Angelico wrote:
https://www.python.org/dev/peps/pep-0572/


A suggestion:

Under the rejected "Special-casing comprehensions", you show "prefix-local-name-bindings": Name bindings that appear before the loop, like:

> stuff = [(y, x/y) where y = f(x) for x in range(5)]

Please add mention of rejecting "postfix-local-name-bindings": Name bindings that happen after the loop.  For example:

> stuff = [(y, x/y) for x in range(5) where y = f(x)]

Since all the same reasoning applies to both prefix and postfix variations, maybe distinguishing between prefix and postfix can be done in the last paragraph of "Special-casing comprehensions".

Thank you.