Elementwise -//- first release -//- Element-wise (vectorized) function, method and operator support for iterables in python.

[Joshua Landau]

On 21 December 2011 19:00, Joshua Landau <joshua.landau.ws at gmail.com> wrote:

> On 21 December 2011 18:57, Ian Kelly <ian.g.kelly at gmail.com> wrote:
>
>> On Wed, Dec 21, 2011 at 9:48 AM, Joshua Landau
>> <joshua.landau.ws at gmail.com> wrote:
>> > NOW (the PEP):
>> > item = foreignfunc1~(item)
>> > item = foreignfunc2~(item)
>> > item = foreignfunc3~(item)
>>
>> Just a note: PEP 225 does not actually include this syntax for
>> arbitrary function calls.  It only proposes to augment the arithmetic
>> and assignment operators.
>>
>
> Not quite. They never seem to have come to an agreement (the whole thing
> is deferred) but they do touch upon "~f(x)":
>
>
> 5. Using ~ as generic elementwise meta-character to replace map
>
>           ~f(a, b)               # map(f, a, b)
>           ~~f(a, b)              # map(lambda *x:map(f, *x), a, b)
>
>        More generally,
>
>           def ~f(*x): return map(f, *x)
>           def ~~f(*x): return map(~f, *x)
>           ...
>
> I used "f~(x)" because it's not ambiguous with the current binary not operator.
>
>  Apologies for the double post but I think it's worth mentioning that I
did make up the "list~.method" syntax.
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