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-rw-r--r--pyisda/credit_index.pyx3
1 files changed, 3 insertions, 0 deletions
diff --git a/pyisda/credit_index.pyx b/pyisda/credit_index.pyx
index bc3ee8f..c93b177 100644
--- a/pyisda/credit_index.pyx
+++ b/pyisda/credit_index.pyx
@@ -3,6 +3,7 @@ from libc.stdlib cimport malloc, free
from libc.math cimport nan
from libcpp.pair cimport pair
from cython.operator cimport dereference as deref
+from cpython cimport PyObject, Py_INCREF
cimport cython
from legs cimport (JpmcdsCdsContingentLegMake, JpmcdsCdsFeeLegMake,
@@ -88,6 +89,8 @@ cdef class CurveList:
cdef np.npy_intp shape = self.weights.size()
cdef np.ndarray[np.float64_t] out = \
np.PyArray_SimpleNewFromData(1, &shape, np.NPY_DOUBLE, self.weights.data())
+ out.base = <PyObject*>self
+ Py_INCREF(self)
return out
@property