Python's features, which requires D

[Ali Çehreli via Digitalmars-d-learn]

On 05/21/2015 05:23 PM, Dennis Ritchie wrote:
> Hi,
> I've collected some of Python's features. It seems to me that they are
> not in the D!
>
> Surely all this is in the D? :)
> http://rextester.com/CNQQR3333

Here is my attempt:

import std.stdio;
import std.algorithm;
import std.conv;
import std.range;

void main()
{
     // Replace 'none' with 'all' to activate.
     version (none) {
         const n = 5;

         auto a = stdin
                  .byLine
                  .map!(l => l.splitter.map!(to!int).array)
                  .take(n);

         writeln(a);
         writeln("-----");
     }

     {
         const n = 6;

         auto a = iota(n)
                  .map!(i => chain([2].replicate(i),
                                   [1],
                                   [0].replicate(n - i - 1)));

         writefln("%(%(%s %)\n%)", a);
         writeln("-----");
     }

     {
         const x = [ 1, 2, 3, 4, 5, 6 ];

         writeln(x.stride(2));
         writeln(x.dropOne.stride(2));
         writeln("-----");
     }

     {
         // The internet does not need another fizz buzz. :p
     }
}

Ali