Generating a list of None

[Raymond Hettinger]

[Bengt Richter]
> how about (untested)
>
>  def get_options(opts):
>      """Return True or False if an option is set or not"""
>      return [1 for val in vars(opts).values() if val is not None] and True or False

While we're tossing around hacks and coding atrocities, we should note
that:

   not not x

outperforms:

   x and True or False

neither of which is as clear as:

   bool(x)


Raymond