dream is a composition tool for task graphs - dasks, specifically.

• Chained methods with functional flavor: :

  dream.of(range(4)).map().filter().etc

• Succinct creation of partial functions: :

  inc = dream.map(lambda n: n + 1)
  evens = dream.filter(lambda n: n % 2 == 0)

• Composable into more complex graphs: :

  inc.into(events).of(range(4)).into(set) == {2, 4}

And the stretch goal:

• Succinct simple function definition for dreams: :

  from dream import dream, n
  dream.map(n + 1)