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-rw-r--r--python/calibrate_swaption.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/python/calibrate_swaption.py b/python/calibrate_swaption.py
index 6ae82745..b5b3e40f 100644
--- a/python/calibrate_swaption.py
+++ b/python/calibrate_swaption.py
@@ -60,6 +60,6 @@ if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('--index', required=True, type = lambda s: s.upper())
parser.add_argument('--series', required=True, type=int)
- parser.add_argument('--date', required = False, default = "'-infinity'::date")
+ parser.add_argument('--date', required = False, default = datetime.date.min)
args = parser.parse_args()
calibrate(args.index, args.series, args.date)