Oops, didn’t notice this wasn’t Python-ideas — that’s where it should be.
-CHB
On Sun, Mar 13, 2022 at 3:44 PM Christopher Barker <python...@gmail.com>
wrote:
>
> Possible solution:
>> s = {} # new empty set
>> d = {:} # new empty dictionary (the ":" is a reference to key-value pairs)
>
>
> This would be fine for a new language. But completely out of the question
> for Python — it would break an enormous amount of code.
>
> We are in this position because sets are relatively new to Python, and
> there are only so many brackets.
>
> Current workaround at least for consistency:
>> l = list() # new empty list
>> t = tuple() # new empty tuple
>> s = set() # new empty set
>> d = dict() # new empty dictionary
>>
>> However, it doesn't feel right to not be able to initialize an empty set
>> as cleanly and consistently as lists, tuples and dictionaries in both forms.
>
>
> It may not “feel” right, but is it that big a deal? There are literally
> any number of types that can’t be initialized with a “literal” — so
> consistence is not compelling here. set() is (maybe?) the only builtin, but
> is initializing and empty set that common?
>
> Note, there was a recent thread on this list about a literal for frozenset
> — I think:
>
> f{} was proposed— you may want to revive that -and add s{} for an empty
> set …
>
> Though i personally wouldn’t support the idea.
>
> -CHB
>
>
>
> --
> Christopher Barker, PhD (Chris)
>
> Python Language Consulting
> - Teaching
> - Scientific Software Development
> - Desktop GUI and Web Development
> - wxPython, numpy, scipy, Cython
>
--
Christopher Barker, PhD (Chris)
Python Language Consulting
- Teaching
- Scientific Software Development
- Desktop GUI and Web Development
- wxPython, numpy, scipy, Cython
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