On Thu, Oct 01, 2015 at 02:50:07PM -0400, Random832 wrote:
On Thu, Oct 1, 2015, at 14:36, MRAB wrote: [...]
'and' and 'or' don't escape parentheses. I'd take it as a general rule that short-circuiting doesn't escape parentheses.
Sure they do. In what way is (a and b) and c different from a and b and c? Heck, (a and b) and (c and d) even compiles to the same bytecode as other groupings [demonstrating it has the same actual semantics] *even though it is a different AST*. But even if it didn't, it would just be jumping to another jump opcode.
I don't see what this has to do with null aware attribute access. If I wrote: (spam?.eggs.cheese).__class__ the obvious intention is that it should evaluate like: temp = spam?.eggs.cheese temp.__class__ only without the use of a temporary name. -- Steve