strange Python sorting behavior

strange_sorting.py

>>> a = [1, 2]
>>> b = (1, 2)
>>> a < b
True
>>> b > a
True
>>> b < a
False
>>> c = [
   ...   (1, 2, 3),
   ...   (2, 3, 4),
   ...   (3, 4, 5)
   ... ]
>>> c
[(1, 2, 3), (2, 3, 4), (3, 4, 5)]

>>> sorted(c, reverse=True)
[(3, 4, 5), (2, 3, 4), (1, 2, 3)]

>>> c =  [(1, 2, 3),
          (2, 3, 4),
          (3, 4, 5),
          [1, 2, 3],
          [2, 3, 4],
          {'foo': True},
          {'bar': False}]

>>> sorted(c, reverse=True)

[(3, 4, 5),
 (2, 3, 4),
 (1, 2, 3),
 [2, 3, 4],
 [1, 2, 3],
 {'foo': True},
 {'bar': False}]