Unused variables msg should be silenced if locals() is used

[Domen Kožar]

For example:

  def test(a, b):
          c = do_something(locals())
          return True

Warning for unused variable should be issued only for c, not also a and b.

[Domen Kožar (ielectric+)]

Submitted pull request: https://github.com/kevinw/pyflakes/pull/25

[Jean-Paul Calderone (exarkun)]

The example in the description seems invalid to me. Current pyflakes trunk tip will not emit warnings for a and b for that code.

[Domen Kožar (ielectric+)]

Yes, example in the ticket is not the best. Look at test cases supplied with patch.

Run this through pyflakes: http://paste.pocoo.org/show/577582/
dir() could be any function that makes use of variable a