v0.2.1

Fixed

• Treat a name used inside a module- or class-level comprehension as a real dependency.
  Such a comprehension runs eagerly when the definition executes, so an assignment like
  values = {key: build(key) for key in keys} now sorts after the build function
  it calls instead of ahead of it (which raised NameError). A comprehension inside a
  function body stays deferred and still imposes no ordering.