Task #3860: Bugfix on parm_export_cal functionality

CEP/Pipeline/recipes/sip/bin/msss_calibrator_pipeline.py

@@ -289,8 +289,14 @@ class msss_calibrator_pipeline(control):
         #    Swapping outliers in the gains with the median 
         # Export the calibration solutions using gainoutliercorrection and store
         # the results in the files specified in the instrument mapfile.
-        export_instrument_model = eval(py_parset.getString(
-            'Calibration.export_instrument_model'))
+        try:
+            export_instrument_model = eval(py_parset.getString(
+                'Calibration.export_instrument_model'))
+        except:
+            export_instrument_model = True
+
+#        export_instrument_model = eval(py_parset.getString(
+#            'Calibration.export_instrument_model'))
         with duration(self, "gainoutliercorrection"):
             self.run_task("gainoutliercorrection",
                       (parmdb_mapfile, instrument_mapfile),