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-rw-r--r--python/analytics/__init__.py2
-rw-r--r--python/analytics/option.py2
2 files changed, 2 insertions, 2 deletions
diff --git a/python/analytics/__init__.py b/python/analytics/__init__.py
index e23b7e64..4e2c2c39 100644
--- a/python/analytics/__init__.py
+++ b/python/analytics/__init__.py
@@ -1,4 +1,4 @@
from .index import Index, ForwardIndex
-from .option import BlackSwaption, Swaption, VolatilitySurface, ATMstrike
+from .option import BlackSwaption, Swaption, VolatilitySurface, ATMstrike, ProbSurface, QuoteSurface, VolSurface
from .portfolio import Portfolio
from .basket_index import BasketIndex
diff --git a/python/analytics/option.py b/python/analytics/option.py
index 995e9042..2c41f1be 100644
--- a/python/analytics/option.py
+++ b/python/analytics/option.py
@@ -21,7 +21,7 @@ from pyisda.flat_hazard import pv_vec
import numpy as np
from scipy.optimize import brentq
from scipy.integrate import simps
-from scipy.interpolate import SmoothBivariateSpline, interp2d
+from scipy.interpolate import SmoothBivariateSpline, interp2d, CubicSpline
from matplotlib import cm
from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt