How to use the larray.__version__ function in larray

# we do not include PyQt because it is an indirect dependency. It might
        # be a good idea to include those too, but the list will get long in
        # that case.
        print("""
python {py}
larray {la}
numexpr {ne}
numpy {np}
pandas {pd}
pytables {pt}
pyyaml {yml}
bcolz {bc}
bottleneck {bn}
matplotlib {mpl}
vitables {vt}
""".format(py=py_version, la=la.__version__, ne=ne.__version__,
           np=np.__version__, pd=pd.__version__, pt=pt.__version__,
           yml=yaml.__version__,
           bc=bcolz_version, bn=bn_version, mpl=mpl_version, vt=vt_version,
           ))
        parser.exit()