On 11/7/2012 5:11 PM, Terry Reedy wrote:
On 11/7/2012 4:39 PM, Ned Batchelder wrote:
Just to be clear: the reference guide says that the behavior *SHOULD BE*
(but is not yet) this:
Python 3.3.0
>>> {print("a"):print("b")}
a
b
{None: None}
>>> d = {}
>>> d[print("a")] = print("b")
b
a
>>>
Is this or is this not "weird" to you?
Not weird. Expressions and assignment targets are each consistently
evaluated left to right (except as *necessarily* alter by precedence),
with expressions evaluated before targets.
Sorry, I should have been clearer: I was asking about weird not to say,
"This is weird and should be changed!", but to get clarification from
Serhiy about his statement, " It will be weird if a dict comprehension
and a plain loop will be inconsistent." I honestly didn't know which
behavior he considered inconsistent and therefore weird.
--Ned.
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