[Python-Dev] PEP 289: Generator Expressions

[Guido van Rossum]

> Overall the pep is being well received.  The discussion has been
> uncontentious and light (around 50-55 posts).  

Great!

> There was occasional discussion about the parentheses requirement but
> that was quickly settled also.  One idea that had some merit was to not
> require the outer parentheses for a single expression on the rhs of an
> assignment:
> 
>     g = (x**2 for x in range(10))   # maybe the outer parens are not needed

I really think they should be required.  The 'for' keyword feels like
it has a lower "priority" than the assignment operator.

--Guido van Rossum (home page: http://www.python.org/~guido/)