I'd just do this, which works today:
==================
import numpy
import io
ar = numpy.loadtxt(io.StringIO("""
1 5 9 155
53 44 44 34
"""))
==================
Of course, this is only worth the trouble if you
are somehow loading a very large matrix.
(And then, are you sure you want to embed it in your code?)
Stephan
2018-03-15 6:15 GMT+01:00 Steven D'Aprano <st...@pearwood.info>:
> On Thu, Mar 15, 2018 at 01:32:35AM +0100, Mikhail V wrote:
>
> > Idea is a concept for 2D arrays/lists syntax, which should simplify
> > some editing boilerplate while working with arrays and improve
> > readability for bigger arrays.
>
> I don't understand; we already have perfectly good syntax for working
> with 2D arrays.
>
> > Lets start with a simple list example :
> >
> > L ===
> > 1 5 9 155
> > 53 44 44 34
> >
> > returns a 2d list:
> > [[1, 5, 9, 155], [53, 44, 44, 34]]
>
> We already have:
>
> L = [[1, 5, 9, 155], [53, 44, 44, 34]]
>
> which is more compact (one line rather than two) and explicitly delimits
> the start and end of each list. Like everything else in Python, it uses
> commas to separate items, not whitespace. If you prefer:
>
> L = [[1, 5, 9, 155],
> [53, 44, 44, 34]]
>
>
> Using spaces to separate items has the fatal flaw that it cannot
> distinguish
>
> x - y 0 # two items, the expression `x - y` and the integer 0
>
> from:
>
> x - y 0 # three items, `x`, `-y`, and 0
>
>
> making it ambiguous. I stopped reading your post once I realised that.
>
>
> --
> Steve
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