diff --git a/core/analysis_scripts/analysis_scripts/plugins.py b/core/analysis_scripts/analysis_scripts/plugins.py
index 2dc462b..420f6e0 100644
--- a/core/analysis_scripts/analysis_scripts/plugins.py
+++ b/core/analysis_scripts/analysis_scripts/plugins.py
@@ -21,7 +21,6 @@ def __enter__(self):
         """Adjusts the sys path so the modules and packages can be imported."""
         if self.path not in sys.path:
             sys.path.insert(0, self.path)
-            print(sys.path)
         return self
 
     def __exit__(self, exception_type, exception_value, traceback):
diff --git a/user-analysis-scripts/freanalysis_clouds/freanalysis_clouds/__init__.py b/user-analysis-scripts/freanalysis_clouds/freanalysis_clouds/__init__.py
index 4b15c52..0cdaa8a 100644
--- a/user-analysis-scripts/freanalysis_clouds/freanalysis_clouds/__init__.py
+++ b/user-analysis-scripts/freanalysis_clouds/freanalysis_clouds/__init__.py
@@ -75,16 +75,16 @@ def requires(self):
             },
         })
 
-    def run_analysis(self, catalog, png_dir, reference_catalog=None, config={}):
+    def run_analysis(self, catalog, png_dir, config=None, reference_catalog=None):
         """Runs the analysis and generates all plots and associated datasets.
 
         Args:
             catalog: Path to a catalog.
             png_dir: Path to the directory where the figures will be made.
-            reference_catalog: Path to a catalog of reference data.
             config: Dictonary of catalog metadata.  Will overwrite the
                     data defined in the Metadata helper class if they both
                     contain the same keys.
+            reference_catalog: Path to a catalog of reference data.
 
         Returns:
             A list of paths to the figures that were created.
@@ -95,8 +95,9 @@ def run_analysis(self, catalog, png_dir, reference_catalog=None, config={}):
 
         # Connect to the catalog.
         catalog = intake.open_esm_datastore(catalog)
-        print(catalog)
 
+        if not config:
+            config = {}
         maps = {}
         for name, variable in self.metadata.variables().items():
             # Filter the catalog down to a single dataset for each variable.