def __getitem__(self, i: int) -> typing.Union[float, 'FloatSexpVector']:
cdata = self.__sexp__._cdata
if isinstance(i, int):
i_c = _rinterface._python_index_to_c(cdata, i)
res = openrlib.REAL_ELT(cdata, i_c)
elif isinstance(i, slice):
res = type(self).from_iterable([
openrlib.REAL_ELT(cdata, i_c)
for i_c in range(*i.indices(len(self)))
])
else:
raise TypeError('Indices must be integers or slices, not %s' %
type(i))
return res
def test_get_real_elt_fallback():
rpy2.rinterface.initr()
v = rpy2.rinterface.FloatSexpVector([1.1, 2.2, 3.3])
assert (openrlib.REAL_ELT(v.__sexp__._cdata, 1) \
== \
openrlib._get_real_elt_fallback(v.__sexp__._cdata, 1))