# list_compact.py

# list_compact.py

def compact(lst):
    return list(filter(None, lst))

print compact([0, 1, False, 2, '', 3, 'a', None, 's', {0: ''}, 34, 0.0, ()])

# [ 1, 2, 3, 'a', 's', {0: ''}, 34 ]