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-rw-r--r--python/analytics/option.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/python/analytics/option.py b/python/analytics/option.py
index e366c51b..5e764b68 100644
--- a/python/analytics/option.py
+++ b/python/analytics/option.py
@@ -10,7 +10,7 @@ from db import dbengine
from .black import black, Nx
from .sabr import sabr
from .utils import GHquad, build_table
-from .index import g, ForwardIndex, Index, engine
+from .index import g, ForwardIndex, Index, _engine
from yieldcurve import roll_yc
from pandas.tseries.offsets import BDay
@@ -464,7 +464,7 @@ class VolatilitySurface(ForwardIndex):
"WHERE quotedate::date = %s AND index= %s AND series = %s " \
"AND quote_source != 'SG' " \
"ORDER BY quotedate DESC",
- engine,
+ _engine,
parse_dates = ['quotedate', 'expiry'],
params=(trade_date, index_type.upper(), series))
self._quotes.loc[(self._quotes.quote_source == "GS") & (self._quotes['index'] =="HY"),