[Python-ideas] frozenset literals

Antoine Pitrou solipsis at pitrou.net
Sat Feb 2 15:28:56 CET 2013


On Sun, 03 Feb 2013 01:20:38 +1100
Steven D'Aprano <steve at pearwood.info> wrote:
> 
> Unfortunately the proposal to use f{ ... } for frozen sets cannot work within the constraints of Python's lexer:
> 
> http://mail.python.org/pipermail/python-3000/2008-January/011838.html
> 
> Unfortunately we're running out of useful, easy to enter symbols for literals. Until such time (Python4000 perhaps, or more likely Python5000) as we can use a rich set of Unicode literals, I don't think there is any clear way to have a frozenset literal.

I'm not sure what the point is. frozensets are too rarely used to
deserve a literal notation.

Regards

Antoine.





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