On 28 Jan 2008, at 23:45, Greg Ewing wrote:
> Guido van Rossum wrote:
>>
...
>> Have a look at PEP 218.
>
> That PEP proposes that there be no set literal or comprehension
> syntax, and doesn't contain any discussion on whether such
> syntax should produce sets or frozensets if it were to exist.
It seems to me that this raises a critical question; would one want a
set comprehension to produce frozen sets? If the comprehension form
{i for i in range(4)} should produce something mutable then I think it
would be way too confusing for the form {0,1,2,3} to produce something
different. Personally I'd like set comprehensions to give me mutable
sets, and so I feel set literals should do the same.
Nicko
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