Want Jython compatibility

[steve]

airspeed.ValueList? uses 'yield'; replace with list comprehension.

[steve]

###############################################################################
# Compatibility for old Pythons & Jython
###############################################################################
try: dict
except NameError:
    from UserDict import UserDict
    class dict(UserDict):
        def __init__(self): self.data = {}
try: operator.__gt__
except AttributeError:
     operator.__gt__ = lambda a, b: a > b
     operator.__lt__ = lambda a, b: a < b
     operator.__ge__ = lambda a, b: a >= b
     operator.__le__ = lambda a, b: a <= b
     operator.__eq__ = lambda a, b: a == b
     operator.__ne__ = lambda a, b: a != b

[steve]

Fixed by changeset [39]