[trotterdylan]

Ugh, sorry about that. There's a couple issues here:

1. Lambda tuple args are not yet supported -- I actually didn't know that was a thing :\ -- https://github.com/google/grumpy/issues/17

2. Even if that worked properly, sorted() is not yet implemented: https://github.com/google/grumpy/issues/16

[justinsaccount]

Yeah.. It also used to work with def, but it was removed in python3. You can do this in 2.7:

  def func((a,b)):
      return b

  mytuple = 1,2
  print func(mytuple)

in py3 you need

  def func(t):
      a,b = t
      return b

Not sure if

This is probably the cleaner way to write that:

  key=operator.itemgetter(1)

[jwillp]

sorted() is widely used, adding will extend coverage considerably.