--- a/python/metadata.py	Fri Feb 03 16:26:18 2017 -0500
+++ b/python/metadata.py	Wed Feb 08 16:32:15 2017 -0500
@@ -140,9 +140,9 @@
             self.undistortedImageMultiplication = undistortedImageMultiplication
             
         if self.intrinsicCameraMatrix is not None:
-            self.intrinsicCameraMatrixStr = '{}'.format(self.intrinsicCameraMatrix.tolist())
+            self.intrinsicCameraMatrixStr = str(self.intrinsicCameraMatrix.tolist())
         if self.distortionCoefficients is not None and len(self.distortionCoefficients) == 5:
-            self.distortionCoefficientsStr = '{}'.format(self.distortionCoefficients)
+            self.distortionCoefficientsStr = str(self.distortionCoefficients)
 
     @orm.reconstructor
     def initOnLoad(self):