# __getitem__() doesn't capture all slices if class inherits from list,
# tuple or str

class ObjectClass(object):
    def __getitem__(self, key):
        print '%s.__getitem__(self, %s)' % (self.__class__.__name__, key)

class ListClass(list):
    def __getitem__(self, key):
        print '%s.__getitem__(self, %s)' % (self.__class__.__name__, key)

for obj in [ObjectClass(), ListClass()]:
    obj[0]
    obj[:1]
    obj[1:3]
    obj[2:3:1]
    obj[2:]
    print

# PLEASE NOTE: it appears
#     class ListClass(list)
#     class TupleClass(tuple)
#     class StrClass(str)
# all have the same behavoir
#

# Script started on Sun Jul 27 21:19:03 2008
# $ python getitem_problem.py
# 
# ObjectClass.__getitem__(self, 0)
# ObjectClass.__getitem__(self, slice(None, 1, None))
# ObjectClass.__getitem__(self, slice(1, 3, None))
# ObjectClass.__getitem__(self, slice(2, 3, 1))
# ObjectClass.__getitem__(self, slice(2, None, None))
# 
# ListClass.__getitem__(self, 0)
# ListClass.__getitem__(self, slice(2, 3, 1))
# 
# $ exit
# exit
# 
# Script done on Sun Jul 27 21:19:27 2008